AIM:To investigate the effect of adding autologous serum eye drops to the postoperative regime after amniotic membrane transplantation for severe persistent corneal ulcers.METHODS:Forty eyes of 40 patients with persis...AIM:To investigate the effect of adding autologous serum eye drops to the postoperative regime after amniotic membrane transplantation for severe persistent corneal ulcers.METHODS:Forty eyes of 40 patients with persistent corneal ulcers were randomly assigned to artificial tears(sodium hyaluronate 0.2%,ATs group,n=20)or autologous serum eye drops(ASEDs,n=20)following treatment with amniotic membrane transplantation.Digital slit lamp images were acquired from all patients before and 30d post treatment.The area with fibrovascular tissue was calculated using Image J.Central corneal sensitivity was assessed by Cochet-Bonnet aesthesiometry before and one month after treatment.Scar tissue transparency was assessed with a novel optical densitometry.RESULTS:Mean age of patients was 61.65±16.47y and 57.3±19.11y in the ATs group and ASEDs group,respectively.Twenty-two male and 18 female patients were included in the study.The improvement in visual acuity was significantly greater in the ASEDs group(0.14±0.04)than the ATs(0.08±0.04;P=0.00046).Cochet-Bonnet aesthesiometry improved significantly after treatment with a similar rate between groups.There were no statistically significant differences in the area of postoperative fibrovascular tissue between the two groups(P=0.082).The success rate in the two groups was similar.The difference in densitometry between the ATs and ASEDs group was statistically significant(P=0.042)with greater reduction from baseline in the ASEDS group.CONCLUSION:Autologous serum eye drops can lead to better visual acuity,more stable results and improved densitometry and should be considered in the postoperative care following amniotic membrane transplantation.展开更多
AIM:To evaluate the clinical efficacy of small-diameter acellular porcine corneal stroma(SAPS)for the treatment of peripheral corneal ulceration(PCU).METHODS:This retrospective clinical study included 18 patients(18 e...AIM:To evaluate the clinical efficacy of small-diameter acellular porcine corneal stroma(SAPS)for the treatment of peripheral corneal ulceration(PCU).METHODS:This retrospective clinical study included 18 patients(18 eyes)with PCU between April 2018 and December 2020.All patients had PCU and underwent lamellar keratoplasty with SAPS.Observation indicators included preoperative and postoperative best-corrected visual acuity(BCVA)and transparency of SAPS.The infection control rate in the surgical eye-lesion area was also calculated.RESULTS:Eighteen patients underwent lamellar keratoplasty with SAPS to treat PCU.None of the patients experienced rejection after 6mo(18/18)and 12mo(16/16)of follow-up.The BCVA(0.47±0.30)at the 6mo followup after operation was significantly improved compared with the baseline(0.99±0.80),and the difference was statistically significant(Z=-3.415,P<0.05).The BCVA at the 12mo follow-up after operation was not statistically significant compared to the 6mo(Z=0,P=1).With time,the SAPS graft gradually became transparent.At the 6mo(18/18)and 12mo(16/16)follow-up,none of the patients had recurrent corneal infection.CONCLUSION:SAPS is clinically effective in the treatment of PCU,improving the patient’s BCVA and reducing the incidence of rejection after keratoplasty.展开更多
We aimed to evaluate interleukin-6(IL-6) tear concentration and clinical outcome in patients with moderate-to-severe bacterial corneal ulcers post corneal collagen cross-linking(CXL) therapy. This pre-post designe...We aimed to evaluate interleukin-6(IL-6) tear concentration and clinical outcome in patients with moderate-to-severe bacterial corneal ulcers post corneal collagen cross-linking(CXL) therapy. This pre-post designed study involving 21 moderate-to-severe corneal ulcer patients who underwent CXL therapy. Patients with infectious corneal ulcer were given CXL therapy as adjunctive treatment after 5 d of broadspectrum antibiotic treatment. Patients with moderate to severe infectious bacterial corneal ulcers were included in this study. Tear sampling was performed before CXL therapy, using sterile Schimer paper from conjunctival inferior fornix. CXL therapy was performed in accordance with the CXL Dresden protocol. Data recording and tear sampling were then performed at day 1 and day 7 after CXL therapy. Data recording included, presence of conjunctival hyperemia, visual analogue scale(VAS), size of corneal defects, and decemetocele. There was a decrease in IL-6 tear concentration by day 7 after CXL therapy(P=0.001). IL-6 concentration at 1 h after therapy(2274.67±2120.46 pg/m L) tended to be lower than before therapy(4330.09±3169.70 pg/m L), but the difference was not statistically significant(P=0.821). The size of corneal defects decreased significantly post CXL(P=0.007). The log MAR visual acuity before and after CXL therapy was not found to be significantly different(P=0.277). There was a significant decrease in VAS values(P=0.018) and blepharospasm(P=0.011) pre and post CXL. There was no significant decrease in conjunctival hyperemia pre and post CXL(P=0.293). There was significant reduction in IL-6 tear concentration and clinical improvement in moderateto-severe bacterial corneal ulcers which underwent CXL therapy.展开更多
Dear Sir,Iam Dr.Sheng-Li Mi,from the Biomanufacturing engineering laboratory,Graduate School at Shenzhen,Tsinghua University,Shenzhen,China.I write to present a case report of nocardia brasiliensis in a patient with d...Dear Sir,Iam Dr.Sheng-Li Mi,from the Biomanufacturing engineering laboratory,Graduate School at Shenzhen,Tsinghua University,Shenzhen,China.I write to present a case report of nocardia brasiliensis in a patient with diabetes.Nocardia is part of a group of aerobic actinomycetes,widely distributed in soil.Nocardia asteroids and nocardia brasiliensis are the most common human pathogens.Humans infected by nocardia asteroids through the respiratory tract mainly suffer from primary suppurative pulmonary conditions.Infection of nocardia brasiliensis often occurs in the advanced stages of a progressive disease or immune disorder,especially Cushing syndrome,diabetes,or in patients using corticosteroids,immunosuppressive agents and broad-spectrum antibiotics for long time[1].To our knowledge,the reports of nocardia keratitis was very rare展开更多
BACKGROUND This study describes the use of a moisture chamber to treat corneal ulceration due to temporary lagophthalmos in a critically ill patient.CASE SUMMARY A 46-year-old woman was admitted to the intensive care ...BACKGROUND This study describes the use of a moisture chamber to treat corneal ulceration due to temporary lagophthalmos in a critically ill patient.CASE SUMMARY A 46-year-old woman was admitted to the intensive care unit after a car accident.She suffered multiple injuries that included brain injury and presented with moderately decreased consciousness and lagophthalmos in her right eye.Within 6 d,her consciousness improved considerably;at which time,exposure keratopathy occurred and worsened to corneal ulceration.Lubricating gel,antibiotic ointment,and bandage contact lens were all ineffective in preventing or treating the exposure keratopathy.Instead of tarsorrhaphy,a moisture chamber was applied which successfully controlled the corneal ulceration.The moisture chamber was discontinued when complete eyelid closure recovered a week later.CONCLUSION A moisture chamber may be an effective,noninvasive alternative to tarsorrhaphy for treating severe exposure keratopathy due to temporary lagophthalmos.展开更多
BACKGROUND Streptococcus mitis(S.mitis)is an opportunistic pathogen that can lead to severe ocular infections.In previous reports,penetrating keratoplasty(PK)was usually adopted for the treatment of persistent corneal...BACKGROUND Streptococcus mitis(S.mitis)is an opportunistic pathogen that can lead to severe ocular infections.In previous reports,penetrating keratoplasty(PK)was usually adopted for the treatment of persistent corneal ulcers.This report describes an unusual case of nonhealing descemetocele caused by S.mitis treated by antibiotics plus amniotic membrane transplantation(AMT).CASE SUMMARY A 63-year-old woman presented with a right persistent corneal ulcer that she had suffered from for the past 9 mo.The culture of a corneal scraping yielded S.mitis.The right eye descemetocele decreased in diameter from 3 to 0.8 mm after the continuous administration of topical vancomycin and ceftriaxone for 2 wk.Due to the slow healing,AMT was performed.Her corneal erosion healed and gradually became clear.Her visual acuity recovered from initially counting fingers to 100/200 at the last follow-up,67 mo after AMT.CONCLUSION Antibiotics plus AMT may be an effective alternative treatment other than PK to promote epithelializationand to reduce inflammation in the corneas complicated by S. mitis keratitis.展开更多
Purpose: To evaluate the efficacy of topical 0.1% FK506 used alone or combined with keratoplasty on patients with recurrent Mooren′s ulcer. Methods: This is a retrospective interventional consecutive case series. Nin...Purpose: To evaluate the efficacy of topical 0.1% FK506 used alone or combined with keratoplasty on patients with recurrent Mooren′s ulcer. Methods: This is a retrospective interventional consecutive case series. Nine patients (15 eyes) with recurrent Mooren′s ulcer were treated with topical 0.1% FK506 alone or combined with keratoplasty. Two eyes with ulcers involving less than half the corneal limbus were treated with topical 0.1% FK506. Of the other 13 eyes with ulcers involving more than half the limbus, twelve were treated with excision of the ulcer and adjacent conjunctiva combined with lamellar keratoplasty. One eye with a central impending corneal perforation was treated with penetrating keratoplasty.Topical 0.1% FK506 was given post-operatively to all thirteen eyes after re-epithelia-lisation of the cornea. FK506 levels in the surgically resected cornea and conjunctiva of the operated eyes were measured using enzyme immunoassay procedures. Twelve patients (17 eyes) with recurrent Mooren′s ulcer treated with lamellar keratoplasty combined with topical 0.1% dexamethasone were taken as the control. The main measure of the outcome was the recurrence of Mooren′s ulcer in the patients. Results: Nine patients (15 eyes) with recurrent Mooren′s ulcer were all successfully treated. Vision in 5 eyes improved by two lines or better after treatment. No recurrence was observed during the follow up period of 12 to 22 months. After topical application of 0.1% FK506, concentrations of 30~350 ng/g of FK506 were found in the cornea and conjunctiva. Seven eyes of Mooren′s ulcer in the control group recurred during the follow up period. Conclusion: Topical 0.1% FK506 used alone or combined with keratoplasty is a safe and effective therapy for patients with recurrent Mooren′s ulcer.展开更多
We report a rare case of association of temporal arteritis with recurrent central corneal ulcer. A 91-year-old male with a remote history of clinically diagnosed giant cell arteritis (GCA) and penetrating keratoplasty...We report a rare case of association of temporal arteritis with recurrent central corneal ulcer. A 91-year-old male with a remote history of clinically diagnosed giant cell arteritis (GCA) and penetrating keratoplasty (PK) for corneal edema in 1990’s in the left eye presented with irritation and severe dry eye. He progressively developed central corneal ulcer regardless of treatment with aggressive lubrication and patching. The clinical course, blood tests and temporal artery biopsy results yielded the diagnosis of recurrent GCA. The clinical course improved after starting oral steroids. The case report illustrates the importance of ruling out GCA in patients with recurrent corneal ulcers and history of GCA. It also highlights the significance of shared understanding between primary care physicians and specialists to handle common and chronic diseases to make efficient diagnoses and plan treatment regimens. This is the first plausible case of reported GCA association with central corneal ulcer in the United States.展开更多
Background: Microbial keratitis often results in poor visual outcome despite treatment. A revision of treatment protocol based on local evidence may be required in order to obtain better treatment outcome. Objectives:...Background: Microbial keratitis often results in poor visual outcome despite treatment. A revision of treatment protocol based on local evidence may be required in order to obtain better treatment outcome. Objectives: To determine the predisposing factors and predominant microbiological diagnosis of corneal ulcers seen at the Federal Teaching Hospital Abakaliki (FETHA), Ebonyi State, Nigeria. Materials and Methods: This is a preliminary report of an on-going longitudinal descriptive study of all consenting corneal ulcer patients managed at the FETHA eye clinic over a 4-month period. Information obtained were socio-demographic data, presenting complaints, duration of symptoms prior to presentation, history of preceding trauma, medications used before presentation, presenting and final visual acuity and microbiological diagnosis. Results: A diagnosis of corneal ulcer was made in 8 out of the 852 outpatients seen over the study period giving a hospital prevalence rate of 0.59%. Five patients (62.50%) were males, five (62.50%) were farmers and 4 patients (50%) were above 60 years of age. The microbial diagnoses were bacterial keratitis 37.5% (Staphylococcus aureus), fungal keratitis 25% (Fusarium spp. and aspergillus) and acanthamoeba (25%). None of the patients ever used contact lenses. There was a history of eye trauma in 50% of the patients. All the eyes presented blind after a period of failed attempts to treat by self or quacks. Mean duration before presentation was two weeks. Treatment improved the visual acuity in 37.5% of patients. Conclusion: Bacteria, fungi and acanthamoeba organisms were the microbiological isolates from the scrapings of corneal ulcer patients seen in the eye clinic of FETHA;with bacterial organisms being the most common. Farming activities, preceding eye trauma, delayed presentation, self-medication and use of traditional eye medications (TEM) were common findings among the patients. A future larger study is recommended to confirm the findings of this study. Eye health education campaigns should be directed at farmers to encourage early presentation to hospitals.展开更多
Background: Small incision refractive lenticule extraction (SMILE) is an effective laser procedure that treats myopia. This research was to describe a novel approach to treat corneal ulcer or perforation using the ...Background: Small incision refractive lenticule extraction (SMILE) is an effective laser procedure that treats myopia. This research was to describe a novel approach to treat corneal ulcer or perforation using the corneal lenticules obtained from SMILE and to evaluate the safety and effectiveness of tectonic keratoplasty with femtosecond laser intrastromal lenticule (TEKIL). Methods: A total of twenty patients (22 eyes) were monitored for at least 6 months and were assessed using slit lamp microscopy, optical coherence tomography, and best-corrected visual acuity (BCVA). Postoperative complications throughout the study period were recorded. Results: Corneal ulcer in 14 patients (16 eyes) and corneal perforation in six patients (6 eyes) were treated with TEKIL. The patients were ten females and ten males, with a mean age of 58.5 ± 16.3 years (range: 16 81 years). In this study, the most causes of corneal ulcer or perforation were immunologic causes (54.5%). After TEKIL procedure, global integrity was achieved in all cases. No immune rejection or perforation was detected. The mean BCVA improved from 0.17± 0.20 preoperatively to 0.27 ± 0.25 postoperatively at the final follow-up (t = 2.095, P 0.052). The postoperative BCVA improved in 12 eyes (54.5%) and maintained in nine eyes (40.9%). Vision function successfully maintained in all eyes (100%). In three cases, corneal ulcers were treated by reoperation of TEKIL at 3 months alter the initial surgery for the reason that the residual corneal thickness was 〈250 μm. Conclusions: TEKI L seems to be an effective treatment for corneal ulcer and perforation in the condition of emergency and donor shortage.展开更多
AIM: To clarify the molecular mechanism of Celecoxib on corneal collagen degradation and corneal ulcer. METHODS: Rabbit corneal fibroblasts were harvested and suspended in serum-free MEM. Type I collagen, DMEM, collag...AIM: To clarify the molecular mechanism of Celecoxib on corneal collagen degradation and corneal ulcer. METHODS: Rabbit corneal fibroblasts were harvested and suspended in serum-free MEM. Type I collagen, DMEM, collagen reconstitution buffer and corneal fibroblast suspension were mixed on ice. The resultant mixture solidify in an incubator, after which test reagents and plasminogen was overlaid and the cultures were returned to the incubator. The supernatants from collagen gel incubations were collected and the amount of hydroxyproline in the hydrolysate was measured. Immunoblot analysis of MMP1, 3 and TIMP1, 2 was performed. MMP2, 9 was detected by the method of Gelatin zymography. Cytotoxicity Assay was measured. RESULTS: Celecoxib inhibited corneal collagen degradation in a dose and time manner; Celecoxib inhibited the IL-1 beta induced increases in proMMP1, 2, 3, 9 and active MMP1, 2, 3, 9 in a concentration-depended manner. Celecoxib can also inhibit the IL-1 beta induced increases in the TIMP1, 2. CONCLUSION: Celecoxib can inhibit corneal collagen degradation induced by IL-1 beta, this effect is the consequence of the reduction of MMP1, 2, 3, 9 and TIMP1, 2. The results of the present study provide new insight into Celecoxib in cornela ulcer treatment.展开更多
Purpose:To report a case of congenital corneal anesthesia (CCA) associated with hypopyon and tactile hypoesthesia. Methods:.Case report. Results:.A 3-year-old girl presented with redness and mild photophobia in the le...Purpose:To report a case of congenital corneal anesthesia (CCA) associated with hypopyon and tactile hypoesthesia. Methods:.Case report. Results:.A 3-year-old girl presented with redness and mild photophobia in the left eye accompanied by corneal ulcer, hypopyon,.and corneal neovascularization..Corneal sensation was reduced bilaterally..She exhibited an absence of normal response to painful stimuli..She also had extensive ulceration of the lateral borders and tip of the tongue. The left corneal biopsy revealed negative cultures for bacteria and fungi. She was treated with human amniotic membrane transplantation in the left eye. The response to treatment was good. Conclusion:.This is the first case of CCA reported in China. CCA is often misdiagnosed as infectious keratitis..Amniotic membrane transplantation is effective in repairing the severe corneal ulcer which may be associated with CCA.展开更多
AIM: To evaluate the efficacy of modified corneal ulcer debridement in superficial fungal keratitis unresponsive to medications.METHODS: A total of 209 patients(209 eyes) with fungal keratitis, involving no more t...AIM: To evaluate the efficacy of modified corneal ulcer debridement in superficial fungal keratitis unresponsive to medications.METHODS: A total of 209 patients(209 eyes) with fungal keratitis, involving no more than 50% of the stromal depth and not responding to antifungal agents for 2 wk, were recruited in this retrospective, noncomparative study. The patients were treated with modified corneal ulcer debridement. All visible corneal infiltrates were removed under an operating microscope to obtain a clean stromal bed and smooth incised edges. Antifungal drugs were used immediately after surgery. Healing time of the ulcers was recorded. Fungal recurrence, visual acuity, corneal thickness and risk factors for treatment failure were monitored.RESULTS: The follow-up was 13.6±5.8m o. The corneal ulcers healed in 195 of 209 eyes(93.3%), with a mean healing time of 8.4±6.8 d. The other 14 eyes were further treated by penetrating keratoplasty(PK)(1 eye), anterior lamellar keratoplasty(LK)(7 eyes), conjunctival flap covering(4 eyes) or amniotic membrane transplantation(2 eyes). The best corrected visual acuity(BCVA) was ≥20/70 in 80.3% of the eyes, ≥20/40 in 56.9% of the eyes, and ≥20/25 in 27.3% of the eyes. The corneas at the lesions became thinner, but all in the safe range. No fungal recurrence or corneal ectasis developed during the follow-up. The risk of treatment failure was higher in patients with preoperative hypopyon(P=0.036) and ever using steroid(P=0.025).CONCLUSION: Modified surgical debridement is a simple and effective method for the treatment of superficial fungal infection of the cornea, with improved visual acuity and no recurrence. Such an intervention in time can rapidly control fungal infection and largely shorten corneal ulcer healing time.展开更多
基金Supported by Project No.8352/24th Nov 2022,Medical University Sofia.Amniotic membrane transplants were provided by Tissue Bank Bioregeneration.
文摘AIM:To investigate the effect of adding autologous serum eye drops to the postoperative regime after amniotic membrane transplantation for severe persistent corneal ulcers.METHODS:Forty eyes of 40 patients with persistent corneal ulcers were randomly assigned to artificial tears(sodium hyaluronate 0.2%,ATs group,n=20)or autologous serum eye drops(ASEDs,n=20)following treatment with amniotic membrane transplantation.Digital slit lamp images were acquired from all patients before and 30d post treatment.The area with fibrovascular tissue was calculated using Image J.Central corneal sensitivity was assessed by Cochet-Bonnet aesthesiometry before and one month after treatment.Scar tissue transparency was assessed with a novel optical densitometry.RESULTS:Mean age of patients was 61.65±16.47y and 57.3±19.11y in the ATs group and ASEDs group,respectively.Twenty-two male and 18 female patients were included in the study.The improvement in visual acuity was significantly greater in the ASEDs group(0.14±0.04)than the ATs(0.08±0.04;P=0.00046).Cochet-Bonnet aesthesiometry improved significantly after treatment with a similar rate between groups.There were no statistically significant differences in the area of postoperative fibrovascular tissue between the two groups(P=0.082).The success rate in the two groups was similar.The difference in densitometry between the ATs and ASEDs group was statistically significant(P=0.042)with greater reduction from baseline in the ASEDS group.CONCLUSION:Autologous serum eye drops can lead to better visual acuity,more stable results and improved densitometry and should be considered in the postoperative care following amniotic membrane transplantation.
基金Key R&D Plan of Shaanxi Province(No.2021SF-331).
文摘AIM:To evaluate the clinical efficacy of small-diameter acellular porcine corneal stroma(SAPS)for the treatment of peripheral corneal ulceration(PCU).METHODS:This retrospective clinical study included 18 patients(18 eyes)with PCU between April 2018 and December 2020.All patients had PCU and underwent lamellar keratoplasty with SAPS.Observation indicators included preoperative and postoperative best-corrected visual acuity(BCVA)and transparency of SAPS.The infection control rate in the surgical eye-lesion area was also calculated.RESULTS:Eighteen patients underwent lamellar keratoplasty with SAPS to treat PCU.None of the patients experienced rejection after 6mo(18/18)and 12mo(16/16)of follow-up.The BCVA(0.47±0.30)at the 6mo followup after operation was significantly improved compared with the baseline(0.99±0.80),and the difference was statistically significant(Z=-3.415,P<0.05).The BCVA at the 12mo follow-up after operation was not statistically significant compared to the 6mo(Z=0,P=1).With time,the SAPS graft gradually became transparent.At the 6mo(18/18)and 12mo(16/16)follow-up,none of the patients had recurrent corneal infection.CONCLUSION:SAPS is clinically effective in the treatment of PCU,improving the patient’s BCVA and reducing the incidence of rejection after keratoplasty.
文摘We aimed to evaluate interleukin-6(IL-6) tear concentration and clinical outcome in patients with moderate-to-severe bacterial corneal ulcers post corneal collagen cross-linking(CXL) therapy. This pre-post designed study involving 21 moderate-to-severe corneal ulcer patients who underwent CXL therapy. Patients with infectious corneal ulcer were given CXL therapy as adjunctive treatment after 5 d of broadspectrum antibiotic treatment. Patients with moderate to severe infectious bacterial corneal ulcers were included in this study. Tear sampling was performed before CXL therapy, using sterile Schimer paper from conjunctival inferior fornix. CXL therapy was performed in accordance with the CXL Dresden protocol. Data recording and tear sampling were then performed at day 1 and day 7 after CXL therapy. Data recording included, presence of conjunctival hyperemia, visual analogue scale(VAS), size of corneal defects, and decemetocele. There was a decrease in IL-6 tear concentration by day 7 after CXL therapy(P=0.001). IL-6 concentration at 1 h after therapy(2274.67±2120.46 pg/m L) tended to be lower than before therapy(4330.09±3169.70 pg/m L), but the difference was not statistically significant(P=0.821). The size of corneal defects decreased significantly post CXL(P=0.007). The log MAR visual acuity before and after CXL therapy was not found to be significantly different(P=0.277). There was a significant decrease in VAS values(P=0.018) and blepharospasm(P=0.011) pre and post CXL. There was no significant decrease in conjunctival hyperemia pre and post CXL(P=0.293). There was significant reduction in IL-6 tear concentration and clinical improvement in moderateto-severe bacterial corneal ulcers which underwent CXL therapy.
基金Supported by the Projects of Science and Technology of Xi'an[No.SF09023(3)]Projects of Basic Research of Shenzhen(No.JCYJ201206141936 11639)+1 种基金Youth Foundation of Graduate School at Shenzhen of Tsinghua University(No.QN20130002)Shenzhen Peacock Plan(No.KQCX20130628155525051)
文摘Dear Sir,Iam Dr.Sheng-Li Mi,from the Biomanufacturing engineering laboratory,Graduate School at Shenzhen,Tsinghua University,Shenzhen,China.I write to present a case report of nocardia brasiliensis in a patient with diabetes.Nocardia is part of a group of aerobic actinomycetes,widely distributed in soil.Nocardia asteroids and nocardia brasiliensis are the most common human pathogens.Humans infected by nocardia asteroids through the respiratory tract mainly suffer from primary suppurative pulmonary conditions.Infection of nocardia brasiliensis often occurs in the advanced stages of a progressive disease or immune disorder,especially Cushing syndrome,diabetes,or in patients using corticosteroids,immunosuppressive agents and broad-spectrum antibiotics for long time[1].To our knowledge,the reports of nocardia keratitis was very rare
基金Supported by Huashan Hospital,Fudan University,No.2016QD03.
文摘BACKGROUND This study describes the use of a moisture chamber to treat corneal ulceration due to temporary lagophthalmos in a critically ill patient.CASE SUMMARY A 46-year-old woman was admitted to the intensive care unit after a car accident.She suffered multiple injuries that included brain injury and presented with moderately decreased consciousness and lagophthalmos in her right eye.Within 6 d,her consciousness improved considerably;at which time,exposure keratopathy occurred and worsened to corneal ulceration.Lubricating gel,antibiotic ointment,and bandage contact lens were all ineffective in preventing or treating the exposure keratopathy.Instead of tarsorrhaphy,a moisture chamber was applied which successfully controlled the corneal ulceration.The moisture chamber was discontinued when complete eyelid closure recovered a week later.CONCLUSION A moisture chamber may be an effective,noninvasive alternative to tarsorrhaphy for treating severe exposure keratopathy due to temporary lagophthalmos.
文摘BACKGROUND Streptococcus mitis(S.mitis)is an opportunistic pathogen that can lead to severe ocular infections.In previous reports,penetrating keratoplasty(PK)was usually adopted for the treatment of persistent corneal ulcers.This report describes an unusual case of nonhealing descemetocele caused by S.mitis treated by antibiotics plus amniotic membrane transplantation(AMT).CASE SUMMARY A 63-year-old woman presented with a right persistent corneal ulcer that she had suffered from for the past 9 mo.The culture of a corneal scraping yielded S.mitis.The right eye descemetocele decreased in diameter from 3 to 0.8 mm after the continuous administration of topical vancomycin and ceftriaxone for 2 wk.Due to the slow healing,AMT was performed.Her corneal erosion healed and gradually became clear.Her visual acuity recovered from initially counting fingers to 100/200 at the last follow-up,67 mo after AMT.CONCLUSION Antibiotics plus AMT may be an effective alternative treatment other than PK to promote epithelializationand to reduce inflammation in the corneas complicated by S. mitis keratitis.
文摘Purpose: To evaluate the efficacy of topical 0.1% FK506 used alone or combined with keratoplasty on patients with recurrent Mooren′s ulcer. Methods: This is a retrospective interventional consecutive case series. Nine patients (15 eyes) with recurrent Mooren′s ulcer were treated with topical 0.1% FK506 alone or combined with keratoplasty. Two eyes with ulcers involving less than half the corneal limbus were treated with topical 0.1% FK506. Of the other 13 eyes with ulcers involving more than half the limbus, twelve were treated with excision of the ulcer and adjacent conjunctiva combined with lamellar keratoplasty. One eye with a central impending corneal perforation was treated with penetrating keratoplasty.Topical 0.1% FK506 was given post-operatively to all thirteen eyes after re-epithelia-lisation of the cornea. FK506 levels in the surgically resected cornea and conjunctiva of the operated eyes were measured using enzyme immunoassay procedures. Twelve patients (17 eyes) with recurrent Mooren′s ulcer treated with lamellar keratoplasty combined with topical 0.1% dexamethasone were taken as the control. The main measure of the outcome was the recurrence of Mooren′s ulcer in the patients. Results: Nine patients (15 eyes) with recurrent Mooren′s ulcer were all successfully treated. Vision in 5 eyes improved by two lines or better after treatment. No recurrence was observed during the follow up period of 12 to 22 months. After topical application of 0.1% FK506, concentrations of 30~350 ng/g of FK506 were found in the cornea and conjunctiva. Seven eyes of Mooren′s ulcer in the control group recurred during the follow up period. Conclusion: Topical 0.1% FK506 used alone or combined with keratoplasty is a safe and effective therapy for patients with recurrent Mooren′s ulcer.
文摘We report a rare case of association of temporal arteritis with recurrent central corneal ulcer. A 91-year-old male with a remote history of clinically diagnosed giant cell arteritis (GCA) and penetrating keratoplasty (PK) for corneal edema in 1990’s in the left eye presented with irritation and severe dry eye. He progressively developed central corneal ulcer regardless of treatment with aggressive lubrication and patching. The clinical course, blood tests and temporal artery biopsy results yielded the diagnosis of recurrent GCA. The clinical course improved after starting oral steroids. The case report illustrates the importance of ruling out GCA in patients with recurrent corneal ulcers and history of GCA. It also highlights the significance of shared understanding between primary care physicians and specialists to handle common and chronic diseases to make efficient diagnoses and plan treatment regimens. This is the first plausible case of reported GCA association with central corneal ulcer in the United States.
文摘Background: Microbial keratitis often results in poor visual outcome despite treatment. A revision of treatment protocol based on local evidence may be required in order to obtain better treatment outcome. Objectives: To determine the predisposing factors and predominant microbiological diagnosis of corneal ulcers seen at the Federal Teaching Hospital Abakaliki (FETHA), Ebonyi State, Nigeria. Materials and Methods: This is a preliminary report of an on-going longitudinal descriptive study of all consenting corneal ulcer patients managed at the FETHA eye clinic over a 4-month period. Information obtained were socio-demographic data, presenting complaints, duration of symptoms prior to presentation, history of preceding trauma, medications used before presentation, presenting and final visual acuity and microbiological diagnosis. Results: A diagnosis of corneal ulcer was made in 8 out of the 852 outpatients seen over the study period giving a hospital prevalence rate of 0.59%. Five patients (62.50%) were males, five (62.50%) were farmers and 4 patients (50%) were above 60 years of age. The microbial diagnoses were bacterial keratitis 37.5% (Staphylococcus aureus), fungal keratitis 25% (Fusarium spp. and aspergillus) and acanthamoeba (25%). None of the patients ever used contact lenses. There was a history of eye trauma in 50% of the patients. All the eyes presented blind after a period of failed attempts to treat by self or quacks. Mean duration before presentation was two weeks. Treatment improved the visual acuity in 37.5% of patients. Conclusion: Bacteria, fungi and acanthamoeba organisms were the microbiological isolates from the scrapings of corneal ulcer patients seen in the eye clinic of FETHA;with bacterial organisms being the most common. Farming activities, preceding eye trauma, delayed presentation, self-medication and use of traditional eye medications (TEM) were common findings among the patients. A future larger study is recommended to confirm the findings of this study. Eye health education campaigns should be directed at farmers to encourage early presentation to hospitals.
文摘Background: Small incision refractive lenticule extraction (SMILE) is an effective laser procedure that treats myopia. This research was to describe a novel approach to treat corneal ulcer or perforation using the corneal lenticules obtained from SMILE and to evaluate the safety and effectiveness of tectonic keratoplasty with femtosecond laser intrastromal lenticule (TEKIL). Methods: A total of twenty patients (22 eyes) were monitored for at least 6 months and were assessed using slit lamp microscopy, optical coherence tomography, and best-corrected visual acuity (BCVA). Postoperative complications throughout the study period were recorded. Results: Corneal ulcer in 14 patients (16 eyes) and corneal perforation in six patients (6 eyes) were treated with TEKIL. The patients were ten females and ten males, with a mean age of 58.5 ± 16.3 years (range: 16 81 years). In this study, the most causes of corneal ulcer or perforation were immunologic causes (54.5%). After TEKIL procedure, global integrity was achieved in all cases. No immune rejection or perforation was detected. The mean BCVA improved from 0.17± 0.20 preoperatively to 0.27 ± 0.25 postoperatively at the final follow-up (t = 2.095, P 0.052). The postoperative BCVA improved in 12 eyes (54.5%) and maintained in nine eyes (40.9%). Vision function successfully maintained in all eyes (100%). In three cases, corneal ulcers were treated by reoperation of TEKIL at 3 months alter the initial surgery for the reason that the residual corneal thickness was 〈250 μm. Conclusions: TEKI L seems to be an effective treatment for corneal ulcer and perforation in the condition of emergency and donor shortage.
基金Research Fund of the Bethune B Plan of Jilin University,2012Research Fund of Jilin Provincial Science and Technology (international cooperation item,20120726)
文摘AIM: To clarify the molecular mechanism of Celecoxib on corneal collagen degradation and corneal ulcer. METHODS: Rabbit corneal fibroblasts were harvested and suspended in serum-free MEM. Type I collagen, DMEM, collagen reconstitution buffer and corneal fibroblast suspension were mixed on ice. The resultant mixture solidify in an incubator, after which test reagents and plasminogen was overlaid and the cultures were returned to the incubator. The supernatants from collagen gel incubations were collected and the amount of hydroxyproline in the hydrolysate was measured. Immunoblot analysis of MMP1, 3 and TIMP1, 2 was performed. MMP2, 9 was detected by the method of Gelatin zymography. Cytotoxicity Assay was measured. RESULTS: Celecoxib inhibited corneal collagen degradation in a dose and time manner; Celecoxib inhibited the IL-1 beta induced increases in proMMP1, 2, 3, 9 and active MMP1, 2, 3, 9 in a concentration-depended manner. Celecoxib can also inhibit the IL-1 beta induced increases in the TIMP1, 2. CONCLUSION: Celecoxib can inhibit corneal collagen degradation induced by IL-1 beta, this effect is the consequence of the reduction of MMP1, 2, 3, 9 and TIMP1, 2. The results of the present study provide new insight into Celecoxib in cornela ulcer treatment.
文摘Purpose:To report a case of congenital corneal anesthesia (CCA) associated with hypopyon and tactile hypoesthesia. Methods:.Case report. Results:.A 3-year-old girl presented with redness and mild photophobia in the left eye accompanied by corneal ulcer, hypopyon,.and corneal neovascularization..Corneal sensation was reduced bilaterally..She exhibited an absence of normal response to painful stimuli..She also had extensive ulceration of the lateral borders and tip of the tongue. The left corneal biopsy revealed negative cultures for bacteria and fungi. She was treated with human amniotic membrane transplantation in the left eye. The response to treatment was good. Conclusion:.This is the first case of CCA reported in China. CCA is often misdiagnosed as infectious keratitis..Amniotic membrane transplantation is effective in repairing the severe corneal ulcer which may be associated with CCA.
基金Supported by the Natural Science Foundation of Shandong Province(No.ZR2014HQ059)
文摘AIM: To evaluate the efficacy of modified corneal ulcer debridement in superficial fungal keratitis unresponsive to medications.METHODS: A total of 209 patients(209 eyes) with fungal keratitis, involving no more than 50% of the stromal depth and not responding to antifungal agents for 2 wk, were recruited in this retrospective, noncomparative study. The patients were treated with modified corneal ulcer debridement. All visible corneal infiltrates were removed under an operating microscope to obtain a clean stromal bed and smooth incised edges. Antifungal drugs were used immediately after surgery. Healing time of the ulcers was recorded. Fungal recurrence, visual acuity, corneal thickness and risk factors for treatment failure were monitored.RESULTS: The follow-up was 13.6±5.8m o. The corneal ulcers healed in 195 of 209 eyes(93.3%), with a mean healing time of 8.4±6.8 d. The other 14 eyes were further treated by penetrating keratoplasty(PK)(1 eye), anterior lamellar keratoplasty(LK)(7 eyes), conjunctival flap covering(4 eyes) or amniotic membrane transplantation(2 eyes). The best corrected visual acuity(BCVA) was ≥20/70 in 80.3% of the eyes, ≥20/40 in 56.9% of the eyes, and ≥20/25 in 27.3% of the eyes. The corneas at the lesions became thinner, but all in the safe range. No fungal recurrence or corneal ectasis developed during the follow-up. The risk of treatment failure was higher in patients with preoperative hypopyon(P=0.036) and ever using steroid(P=0.025).CONCLUSION: Modified surgical debridement is a simple and effective method for the treatment of superficial fungal infection of the cornea, with improved visual acuity and no recurrence. Such an intervention in time can rapidly control fungal infection and largely shorten corneal ulcer healing time.