Clinical outcome of combined conjunctival autograft transplantation and amniotic membrane transplantation in pterygium surgery

AIM： To compare long-term outcome of primary and recurrent pterygium surgery with three different techniques： combined conjunctival autograft and overlay amniotic membrane transplantation （CAT with AMT）, conjunctival autograft transplantation （CAT） alone and amniotic membrane transplantation （AMT） alone. METHODS： In this retrospective study, 142 eyes of 142 pterygium patients （104 primary, 38 recurrent）who underwent CAT （group A）, AMT （group B） or CAT with AMT （group C） respectively following surgical excision were reviewed and compared based on the recurrences and post-operative complications. RESULTS： The number of recurrence post-surgery were 17 （9 from primary, 8 from recurrent; the same description below）, 18 （10, 8） and 2 （1, 1） in groups A, B, and C respectively; dry eyes were 22 （16, 6）, 27 （18, 9） and 7 （3, 4）; conjunctival inflammations were 30 （17, 13）, 27 （16, 11） and 11 （6, 5）. Patients in group C （either pdmary or recurrent or both） mainly showed significantly better results than those in group A or B （P〈0.05） regarding above-mentioned clinical effects. CONCLUSION： Combined CAT and overly AMT have significantly lower rates of recurrence and postoperative complications for primary and recurrent pterygium surgery than CAT or AMT alone.

Comparison of trabeculectomy and trabeculectomy with amniotic membrane transplantation in the same patient with bilateral glaucoma

AIM:To observe effects of trabeculectomy with amniotic membrane transplantation(AMT) in controlling postoperative intraocular pressure(IOP) in patients with medically uncontrolled glaucoma.·METHODS:This study included adult patients with requiring bilateral glaucoma surgery.Each patient underwent trabeculectomy(Non-AMT group) in one eye and with AMT(AMT group) in the other eye according to randomized principle.Success was defined as intraocular pressure(IOP) 【21mmHg without any anti-glaucoma medications at 24 months follow-up.The two groups were compared in terms of IOP,complications and success rate.·RESULTS:Thirty-four eyes of 17 patients were investigated in this study.There was no statistically signifcant difference in pre-operative IOP between the two groups.The mean IOP was lower in AMT group compared with Non-AMT group on follow up months 12,18,and 24.Postoperative complications were more frequent in Non-AMT group(35.3%,6/17) compared with AMT group(5.9%,1/17).The success rate of surgery was88.2%(15/17) in Non-AMT group and 100%(17/17) in AMT group.·CONCLUSION:Trabeculectomy with AMT is an effective procedure to reduce IOP and complications,thereby improving surgical success rates.

Amniotic membrane transplantation for porous sphere orbital implant exposure

Objective: This study is aimed at describing the clinical outcome of amniotic membrane transplantation for exposure of porous sphere implants. Methods: A retrospective review of consecutive cases of porous sphere orbital implant exposure was carried out. Eight cases were presented between May 2004 and Oct. 2006 (5 males, 3 females; mean age 44.5 years). Six had enucleation and two had evisceration. Exposure occurred in two primary and six secondary. Orbital implant diameter was 22 mm in seven cases and 20 mm in one case. Six patients are with hydroxyapatite and two with high-density porous polyethylene (Medpor) orbital implants. The mean time from implantation to exposure was 1.1 months (range 0.8~2 months). All patients required surgical intervention. Results: The time of follow-up ranged from 3.0 to 28.0 months (mean 16.5 months). Amniotic membrane grafting successfully closed the defect without re-exposure in all of these patients. The grafts were left bare with a mean time to conjunctiva of about 1 month (range 0.8~1.5 months). Conclusion: Exposed porous sphere implants were treated suc-cessfully with amniotic membrane graft in all of patients. The graft is easy to harvest. This technique is useful, dose not lead to prolonged socket inflammation and infection, and it is valuable application extensively.

Effects of amniotic membrane transplantation on cytokines expression in chemically burned rat corneas

AIM: To investigate the effect of amniotic membrane transplantation (AMT) on the expressions of inflammatory-related, angiogenic-related and growth-related cytokines in rat corneas after chemical injury. METHODS: Alkali wounds were inflicted on the central corneas of rats by applying a round filter paper soaked in 1mol/L NaOH for 40 seconds. One week after alkali burn, 12 rats were randomly divided into 2 groups: the AMT group and the control group, and AMT was performed on the rats in the AMT group. Corneal opacity and neovascularization were observed by slit-lamp microscopy. The protein levels of interleukin (IL)-2, interferon (IFN)-gamma, IL-10 and transforming growth factor (TGF)-beta were determined by enzyme-linked immunosorbent assay 2 weeks after AMT. The mRNA levels of matrix metalloproteinase-2 (MMP-2), vascular endothelial growth factor (VEGF), epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) were evaluated by real-time quantitative PCR. RESULTS: In the AMT group, the corneal opacity was improved (P =0.011) and the area of corneal neovascularization was significantly decreased (P=0.005) compared with the control group. The amount of IL-2 and IFN-gamma secreted by Th1 cells were decreased after AMT, whereas the amount of IL-10 and TGF-beta secreted by Th2 cells were increased ( P <0.05). The level of MMP-2 was significantly down-regulated (P=0.013) at the nnRNA level in the AMT group, while the expression of EGF was significantly higher (P= 0.022) compared with the control. CONCLUSION: AMT may suppress corneal neovascularization after chemical injury by modulating the expressions of soluble factors.

Comparison of the Efficacy of Pterygium Resection Combined with Conjunctival Autograft versus Pterygium Resection Combined with Amniotic Membrane Transplantation

Purpose:To compare the efficacy of pterygium resection combined with conjunctival autograft versus pterygium resection combined with amniotic membrane transplantation in the treatment of pterygium. Methods: A total of 118 cases (133 eyes) were randomly assigned to receive pterygium resection combined with conjunctival autograft (n=81) or pterygium resection combined with amniotic membrane transplantation(n=52)..Corneal wound healing and neovascularization and the presence or absence of conjunctival proliferation and hyperemia were analyzed at 12 months post-operatively. Results: In the conjunctival autograft group, 6 eyes (7.4%) had recurrent pterygium,.while in the amniotic membrane transplantation group, 10 eyes showed recurrence (19.2%,P<0.05,.chi-square)..Patients in the conjunctival autograft group recovered significantly faster compared with those in the amniotic membrane transplantation group. Conclusion:.Patients receiving pterygium surgery combined with conjunctival autograft had lower recurrence rates and experience faster recovery compared with those undergoing pterygium resection combined with amniotic membrane transplantation.

Fresh Amniotic Membrane Transplantation for Conjunctival Surface Reconstruction

Purpose:To determine whether fresh human amniotic membrane can be used to reconstruct the conjunctiveal defect creates during symblepharon lysis.Methods:Forth-two eyes of 39 consecutive patients with eye burns and Stevens-Johnson syndrome were randomized to accept fresh or preserved human amniotic membrane transplantation(AMT) during the period of severe scarring.Impression cytology was performed in 12 eyes with normal tear secretion which received fresh AMT.Results:During a mean follow-up of 11 months (range,6 to 18 months),thirty-five patients (37 eyes)showed successful ocular surface reconstruction and resolution of motility restriction while four patients (2 eyes with fresh AMT,3 eye with preserved AMT)with minimal recurrence of symblepharon.There was no significant difference statistically between two groups(Chi-square test).Amniotic epithelial cells can survive about three months after being transplanted onto ocular surfaces with normal tear secretion.Conclusion:Both fresh and preserved human amniotic membrane can be considered an ideal alternative substrate for conjunctival surface reconstruction during removal of severe symblepharon.

Amniotic Membrane Transplantation for Conjunctival Tumor

Purpose: To evaluate the possibility of amniotic membrane transplantation (AMT) for the treatment of conjunctival tumor.Methods: Preserved AMT was performed in 26 patients (26 eyes) with conjunctival tumor, including 9 eyes (34.62%) with malignant tumor (conjunctival malignant melanoma,corneal and conjunctival squamous cell carcinoma, conjunctival lymphoma), 17 eyes(65.38%) with benign tumor(conjunctival papilloma, conjunctival dermoid tumor, conjunctival nevus, hemangioma etc.).Result: All the patients are followed up for 1 ～53 months. No acute rejection was observed after preserved AMT. Ideal healing was found in conjunctiva wound.Conclusion: Preserved AMT is a very effective method to repair wound after giant conjunctival tumor operation. Complete removal of tumor and perfect fixation are the key of ocular surface reconstruction.

Sutureless amniotic membrane transplantation following excision of ocular surface neoplasia

【正】Dear Sir,S uccess of surgical management of conjunctival neoplasias primarily depends on the complete excision of the mass and eradication of tumor cells from the ocular surface[1-3].Especially in cases that extensive resections are required,primary closure may not be feasible;so ocular surface reconstruction can be a challenging problem for the surgeons.For conjunctival tissue defects different surgical

Fresh Amniotic Membrane Transplantation Combined Lamellar Keratoplasty for Patients with Recurrent Mooren's Ulcer

Purpose: To investigate the possibility of amniotic membrane as an immunologicalinsulating band to reduce the recurrent frequency of Mooren's ulcer.Methods: Twelve cases(12 eyes)with recurrent Mooren's Ulcer were observed. Amongthem, 4 cases(4 eyes)were male and 8 cases(8 eyes) female, ranging in age between 26and 51 years[mean(41 ± 3)years]. Three eyes recurred once, 5 eyes twice, and 4 eyesthree before. Eleven of 12 cases (11/12 eyes)with frequently recurrent Mooren's ulcerunderwent lamellar keratoplasty combined amniotic membrane transplantation(AMT).One patient who had entire corneal ulceration accepted AMT alone.Results: Follow-up time is 12 to 29 months, [mean (23 ± 6) months]. Before AMT, therecurrent frequency of Mooren's Ulcer of all cases after corneal surgery was 1 ～ 7 months[mean(3 ± 2)months]. Nine of 12 eyes with lamellar keratoplasty combined AMT did notrecur within the observation period; 2 eyes recurred 11 months after the surgery. Threemonths postoperatively, neovascularization was observed, which made it nearly impossibleto decipher between amniotic membrane and its nearby conjunctiva, only at the junctionof the transplant can some trails be observed. One case with entire AMT alone showedgraft resolution and neovascularization in 1 month.Conclusion:AMT combined with lamellar keratoplasty and lesion excision may delayrecurrence of Mooren's Ulcer, reduce its recurrent frequency. Besides the effects ofdecreasing inflammation, it may have immunological insulating function as well. Thisconclusion should be proven by further clinical comparative study of much moresamples.

Toxic keratopathy associated with abuse of topical anesthetics and amniotic membrane transplantation for treatment

AIMTo evaluate the clinical findings of toxic keratopathy associated with abuse of topical anesthetics and the treatment efficacy of amniotic membrane transplantation (AMT).METHODSFifteen eyes of 10 patients with abuse of topical anesthetics were included in this study. The data collected included patients' demographic information, initial best corrected visual acuity (BCVA), clinical findings, time to AMT, duration of epithelization, additional treatments, posttreatment BCVA, and the results of psychiatric examination.RESULTSAll patients were male, with the mean age of 37.9&#x000b1;5.4y. The patients had received 0.5% proparacaine hydrochloride due to pain resulting from foreign bodies, such as welding flash burns and car battery explosions, for a mean of 18.2&#x000b1;12.4d. The mean initial BCVA of the patients was 0.069&#x000b1;0.100. All patients had persistent epithelial defects, stromal infiltration, ring ulcer, and corneal edema. Initially, medical treatment was attempted in all cases. Because of severe pain, persistent epithelial defects and progressing stromal thinning did not improve with medical treatment, thus, the patients underwent AMT. The mean posttreatment BCVA of the patients was 0.33&#x000b1;0.27. All of them, except for two patients, showed improved visual acuity. One patient underwent evisceration for corneal melting and endophthalmitis in another center, and one patient underwent evisceration for severe pain of unknown origin. All 5 patients who consented to a psychiatric examination had depression, had personality disorder, and used tobacco.CONCLUSIONAMT appears to be an effective method for pain relief, rapid epithelial and stromal healing; however, visual prognosis is still poor despite medical and surgical interventions.

Amniotic membrane transplantation in a patient with impending perforated corneal ulcer caused by Streptococcus mitis: A case report and review of literature

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.

Complications of Fibrin Glue in Pterygium Surgery with Amniotic Membrane Transplant

Purpose:To compare the complications and the recurrence rate between fibrin glue (TISSEEL) and Vicryl 8-0 sutures in amniotic membrane transplant during pterygium surgery.Methods:Patients who underwent pterygium surgery with amniotic membrane transplant (AMT) in the Wang Eye Clinic (Doraville,USA).were randomly categorized into two groups:one group received TISSEEL and the other group received Vicryl 8-0 sutures.All procedures for both groups were performed by one ophthalmologist.Twenty-four patients (24 eyes) participated in the TISSEEL group (22 eyes with primary surgery and 2 eyes with surgery for recurrence) and 19 patients (19 eyes) took part in the suture group (18 primary eyes and 1 recurrence).The patients with recurrent pterygium in both groups had not received AMT previously.Post-operatively,patients were followed up for one week and then one year to check for any signs of complications and recurrence.Results:Conjunctival inflammation occurred in 3 eyes (12.5%) in the TISSEEL group,and 6 eyes (31.6%) in the suture group.(P<0.05,Chi-square test).In the TISSEEL group,1 eye (4.2%) showed recurrence,while there were no recurrences in the sutures group.There were 3 dry eyes (15.8%) in the suture group and 2 dry eyes (8.3%) in the TISSEEL group (P>0.05).No dislocated conjunctival grafts,Dellen,inflammation,infection,bleeding,pyogenic granuloma,or scleromalacia was observed in either group.Conclusion:Pterygium surgery with AMT had less conjunctival inflammation and dry eye in patients receiving fibrin glue than those with Vicryl 8-0 sutures.

Anesthesia for bronchoscopic amniotic membrane grafting to treat non-healing bronchial dehiscence

Airway complications after lung transplantation remain a significant cause of morbidity and mortality. Many of these occur at the anastomotic sites, which are susceptible due to poor collateral circulation. Of the possible complications, bronchial dehiscence is particularly formidable. These cases have been successfully treated bronchoscopically with metallic stents, which likely promote healing through granulation tissue formation. However, limited options exist in cases where the dehiscence fails to heal following stent placement. Here, we present the case report of a 65-year-old male who developed bronchial dehiscence status post bilateral lung transplantation for idiopathic pulmonary fibrosis that failed to heal with simple stent placement. Eventually, the patient underwent amniotic membrane grafting with stenting as a novel therapy for non-healing bronchial dehiscence, for which we describe the anesthetic management. His anesthetic plan included inhalational induction with sevoflurane, propofol infusion for total intravenous anesthesia, rocuronium for muscle relaxation, and closed-circuit assisted ventilation. His existing tracheostomy was used as the airway for oxygenation and induction. In summary, our anesthetic plan for the lung transplant patient was effective; future amniotic membrane grafting for bronchial dehiscence through bronchoscopy may follow a similar technique. Ultimately, the choice of anesthesia in this patient population requires judicious consideration of the requirements of the procedure as well as the pathophysiology of the transplanted lung.

A Study on the Preservation of Fresh Amniotic Membrane

Objective: To establish the standard preservation methods of fresh amniotic membranefor clinical use.Methods: Human placentas were collected aseptically from selective caesarean sectionsin normal women in time. Amniotic or placental membrane were peeled and preserved inN.S, P.B. SorDMEM at4°C or cultured in DMEM at 37°C, 5% CO2. Trypan-bluestaining, light and electronic microscopy were observed every six hours after preservation.Results: Seventy percent of amniotic epithelial cells survived after preservation in N. Sfor 6 hours, PBS 12 hours, DMEM 24 hours and 1 week in tissue culture. The amountof living epithelial cells maintained in placental membrane preservation was less thanthat in amniotic membrane preservation at the same time (t-test, P ＜ 0. 01) . Nocollagen degeneration was found during preservation.Conclusion: Preservative solution and time will affect the maintenance time of freshamniotic membrane greatly. Fresh amniotic membrane should be preserved within 6hours in N.S, 12 hours in P.B.S, 24 hours in DMEM at 4 °C and 1 week in tissteculture for clinical use.

Amniotic membrane as a novel treatment in age-related macular degeneration: a narrative review

Age-related macular degeneration(ARMD),one of the most common causes of blindness,should be considered more due to its exponential increase in the coming 20 years as a result of increasing the age of the population.Whereas more recent studies offered newer scaling systems for ARMD,traditionally it is classified as the early and late stages.The main injury in this disease occurred in retinal pigment epithelium(RPE)and the retina.RPE cells have a crucial role in hemostasis and supporting photoreceptors.In the early stages,damages to RPE are minimal and mainly no treatment is needed because most patients are asymptomatic.However,in the late stages,RPE impairment may lead to the invasion of choroidal vessels into the retina.Although anti-angiogenic agents can inhibit this abnormal growth of blood vessels,they cannot stop it completely,and finally,total loss of retinal cells may occur(geographical atrophy).Since this prevalent disease has not had any cure yet,the concept of substituting the RPE cells should be considered.Repairing the injury to central nervous system cells is almost impossible because the regenerative capacity of these cells is limited.Recently,the use of regenerative substitutes has been suggested to replace damaged tissues.Amniotic membrane(AM)has been raised as a suitable substitute for damaged RPE cells due to all of its unique properties:pluripotency,anti-angiogenic effect,and anti-inflammatory effect.Based on the few studies that have been published so far,it seems that the use of this membrane in the treatment of ARMD can be helpful,but more studies are needed.

Medical and surgical approach to ocular surface reconstruction

Ocular surface disease(OSD)can have a severe impact on patients as it can lead to visual impairment and persistent discomfort.Ocular surface reconstruction(OSR)is an approach to the management of ocular diseases that cause structural damage to the ocular surface.OSR encompasses both medical and surgical treatment options.In this review,we discuss the medical and surgical strategies used in OSR.Medical management often aims to treat tear insufficiency,inflammation,and keratinization.Surgical treatments may be employed for a variety of reasons,including failure of medical management.This may include improving the oculo-palpebral structures in order to improve lid positioning and tear film.Additional therapies focus on improving tear production,such as through salivary gland transplantation.In situations where the ocular surface is so severely damaged that there is loss of limbal stem cells,limbal stem cell transplant(LSCT)may be indicated.Other surgeries such as amniotic membrane transplant(AMT)and conjunctival flaps(CFs)can help promote corneal healing.Finally,in severe situations where the cornea is beyond salvage,corneal transplantation,such as a penetrating keratoplasty(PKP),can be considered.OSR often requires a combination of medical and surgical approaches targeted to each specific patient’s presentation in order to achieve optimal outcomes.

羊膜移植术与自体结膜瓣移植术治疗翼状胬肉的临床疗效对比

目的:分析羊膜移植术与结膜瓣移植术后治疗翼状胬肉的临床疗效。方法:选取2020年1月-2022年12月在安徽省庐江县人民医院的眼科收治的80例原发性翼状胬肉手术后的患者作为研究对象,以治疗方式为基础分为观察组与对照组,每组各40例,观察组接受原发性翼状胬肉术后游离结膜瓣移植术,对照组接受原发性翼状胬肉术后羊膜移植术。于术后比较两组患者角膜上皮创面愈合情况、疼痛情况、角膜地形变化、翼状胬肉大小对地形恢复的影响。结果:经两组患者角膜上皮愈合评分显示,两组间差异无统计学意义(P>0.05);术后1周后,两组患者的视觉模拟评分(Visual analogue scale,VAS)评分结果显示,观察组VAS评分优于对照组(P<0.05);术后1周,观察组复发率低于对照组(P<0.05);术后1个月,角膜中央光带处的曲率角膜顶点与光心之间的距离、平均角膜表面形状因子、角膜不规则性测量均小于术前,且观察组小于对照组;中央光学区的角膜曲率高于术前,且观察组高于对照组,差异有统计学意义(P<0.05)。结论:原发性翼状胬肉切除联合游离结膜瓣移植术或羊膜移植术对于原发性翼状胬肉都有很好的治疗效果,两种手术方式角膜上皮愈合程度没有明显的差异,且疼痛评定指数对比无差异,两组术后复发率均得到有效改善,但观察组的复发率要优于对照组,且视觉模拟评分优于对照组。

生物羊膜覆盖联合自体角膜缘干细胞移植在翼状胬肉切除术患者中的应用效果

目的:观察生物羊膜覆盖联合自体角膜缘干细胞移植在翼状胬肉切除术患者中的应用效果。方法:选取2021年1月至2024年2月该院收治的76例翼状胬肉患者进行前瞻性研究,按照随机信封法将其分为研究组与对照组各38例。对照组应用自体角膜缘干细胞移植联合翼状胬肉切除术治疗,研究组在对照组基础上联合生物羊膜覆盖治疗,比较两组痊愈率、复发率、临床相关指标(角膜上皮修复时间、拆线时间)水平,手术前后视力水平、散光指标[角膜散光度、表面不对称指数(SAI)]水平、泪液炎性因子[白细胞介素-6(IL-6)、白细胞介素-2(IL-2)]水平,以及术后3个月并发症发生率。结果:研究组痊愈率为94.74%(36/38),高于对照组的78.95%(30/38),差异有统计学意义(P<0.05);两组复发率比较,差异无统计学意义(P>0.05);研究组角膜上皮修复时间、拆线时间均短于对照组,差异有统计学意义(P<0.05);术后3个月,研究组视力水平高于对照组,角膜散光度、SAI水平均低于对照组,差异有统计学意义(P<0.05);术后7 d,研究组泪液IL-6、IL-2水平均低于对照组,差异有统计学意义(P<0.05);两组并发症发生率比较,差异无统计学意义(P>0.05)。结论:生物羊膜覆盖联合自体角膜缘干细胞移植应用于翼状胬肉切除术患者可提高痊愈率和视力水平,改善临床相关指标水平,降低散光指标和泪液炎性因子水平,效果优于单纯自体角膜缘干细胞移植联合翼状胬肉切除术治疗。

巩膜池复合小梁切除术联合湿态羊膜移植治疗闭角型青光眼的疗效及其对眼压、视力及滤过泡形成的影响分析

目的探讨巩膜池复合小梁切除术联合湿态羊膜移植治疗原发性闭角型青光眼的疗效及其对眼压、视力及滤过泡形成的影响分析。方法将我院2020年5月至2023年3月期间153例原发性闭角型青光眼患者作为研究对象,根据随机数字表法分为两组,传统组77例予以常规小梁切除术,联合组76例予以巩膜池复合小梁切除术联合湿态羊膜移植治疗,对比两组患者临床疗效、眼压、视力、滤过泡形成(随访3个月)、手术失败率、不良反应的发生情况。结果本研究中治疗后,联合组病例脱落3例,传统组病例脱落4例,联合组总有效率95.89%(70/73)高于传统组86.30%(63/73)(χ^(2)=4.137,P=0.042);治疗后3个月,联合组BCVA的表达(0.51±0.21)logMAR低于传统组(0.63±0.14)logMAR(t=3.334,P=0.002),联合组眼压值(12.75±1.19)mmHg低于传统组(13.12±1.28)mmHg(t=2.241,P=0.029);两组均有效控制滤过道瘢痕化,且联合组的滤过泡形成情况的优于传统组(Z=8.279,P=0.041);联合组手术失败率(5.48%)低于传统组(19.18%)(χ^(2)=6.431,P=0.011),联合组不良反应发生率(5.48%)低于传统组(16.44%)(χ^(2)=4.722,P=0.029)。结论巩膜池复合小梁切除术联合湿态羊膜移植治疗能够有效控制眼压,减少滤过泡的疤痕化,减少不良反应的发生,提高手术成功率。

羊膜移植与自体结膜移植对翼状胬肉手术患者视觉质量角膜屈光及泪膜功能的效果观察

目的 本文对羊膜移植与自体结膜移植对翼状胬肉手术患者视觉质量角膜屈光及泪膜功能的效果展开简要分析与探讨。方法 将2020年10月—2022年10月在本院行翼状胬肉手术的100例患者作为研究对象,根据治疗方式不同分为2组,每组50例。其中,观察组采取羊膜移植治疗方式完成治疗,对照组采取自体结膜移植治疗,对比两组患者视觉质量角膜屈光及泪膜功能、治疗满意度及治疗后并发症发生率。结果 治疗前,两组患者视觉质量角膜屈光及泪膜破裂时间无明显差异(P>0.05);治疗后1个月,观察组患者角膜屈光度明显低于对照组,观察组患者泪膜破裂时间明显高于对照组,差异具有统计学意义(P<0.05)。观察组患者治疗总满意度明显大于对照组,差异具有统计学意义(P<0.05)。观察组患者治疗后并发症(感染、干眼症及散光)总发生率明显低于对照组,差异具有统计学意义(P<0.05)。结论 羊膜移植手术治疗可大幅提升患者治疗满意度,降低患者治疗后并发症总发生率,提高患者视觉质量减少角膜屈光度,延长泪膜破裂时间。除此之外,还可保持美观,因此,羊膜移植可大大推广并应用于临床治疗。