Purpose: To evaluate the efficacy of the Ahmed Glaucoma Valve implant in refra ctory glaucomas in Indian eyes. Materials and methods: A retrospective review wa s conducted on the charts of 122 eyes of 122 patients wit...Purpose: To evaluate the efficacy of the Ahmed Glaucoma Valve implant in refra ctory glaucomas in Indian eyes. Materials and methods: A retrospective review wa s conducted on the charts of 122 eyes of 122 patients with refractory glaucoma t reated with Ahmed Glaucoma Valve implant placement at Guru Nanak Eye Centre, New Delhi between January 1996 and December 1999. The main outcome measure was success at the last follow-up. Suc cess was defined as an intraocular pressure (IOP) of 22 mmHg or less and 5 mmHg or more and at least a 30%reduction in IOP without visually devastating complic ations or additional glaucoma surgery. Results: The mean postoperative IOP (17.2 9 ±.3.79 mmHg) was significantly (P < 0.001) lower than the mean preoperative I OP (31.47 ±7.86 mmHg) at last follow up (mean 12.51 ±.8.37 months; range 3-24 months). The cumulative probability of success by Kaplan Meier analysis was 85. 95%at 12 months and 82.83%at 24 months. The mean number of postoperative antig laucoma medications (0.75 ±.0.80) was also significantly lower (P< 0.001) than the mean preoperative number of antiglaucoma medications (2.83±0.72). The most common complication was corneal-tube contact, which occurred in five (4.10%) e yes. Retinal detachment occurred postoperatively in one eye with the clinical di agnosis of neovascular glaucoma secondary to Eale’s disease. Two patients had t ube extrusion requiring repositioning and reinforcement with scleral patch graft . Conclusions: Ahmed Glaucoma Valve implantation is an effective and relatively safe therapy for the treatment of refractory glaucoma in Indians.展开更多
BACKGROUND AND OBJECTIVE: To evaluate the postoperative visual acuity and refractive changes occurring after bilateral frontalis brow suspension surgery in pediatric patients with congenital blepharoptosis. PATIENTS A...BACKGROUND AND OBJECTIVE: To evaluate the postoperative visual acuity and refractive changes occurring after bilateral frontalis brow suspension surgery in pediatric patients with congenital blepharoptosis. PATIENTS ANDMETHODS: Twenty-three patients between 4 and 12 years old with severe congenital blepharoptosis (unilateral in 21 cases and bilateral in 2 cases; total of 25 eyes) and poor levator function underwent bilateral frontalis brow suspension surgery by Crawford’s double triangle method with 4:0 expanded polytetrafluoroethylene sutures. The non-ptotic eyes (21 eyes) undergoing frontalis brow suspension surgery served as the control group. All patients had best-corrected spectacle visual acuity (BCSVA) of more than 6/9 preoperatively in both eyes. Changes in the postoperative BCSVA, binocularity, relevant refractive parameters, lid position, lagophthalmos, lid lag, and tear break-up timewere evaluated in both groups for 12 weeks and appropriate statistical tests were applied. RESULTS: Significant differences were found in the baseline characteristics and the postoperative changes in the eyes with and without ptosis. However, these were found to be transient and did not result in any new cases of amblyopia postoperatively. No complications requiring revision of surgerywere seen. CONCLUSIONS: The changes in the BCSVA after frontalis brow suspension surgery are transient. Retinoscopy, manual keratometry, and corneal videokeratoscopy are simple and effective methods to evaluate the sequential refractive changes occurring in these eyes.展开更多
文摘Purpose: To evaluate the efficacy of the Ahmed Glaucoma Valve implant in refra ctory glaucomas in Indian eyes. Materials and methods: A retrospective review wa s conducted on the charts of 122 eyes of 122 patients with refractory glaucoma t reated with Ahmed Glaucoma Valve implant placement at Guru Nanak Eye Centre, New Delhi between January 1996 and December 1999. The main outcome measure was success at the last follow-up. Suc cess was defined as an intraocular pressure (IOP) of 22 mmHg or less and 5 mmHg or more and at least a 30%reduction in IOP without visually devastating complic ations or additional glaucoma surgery. Results: The mean postoperative IOP (17.2 9 ±.3.79 mmHg) was significantly (P < 0.001) lower than the mean preoperative I OP (31.47 ±7.86 mmHg) at last follow up (mean 12.51 ±.8.37 months; range 3-24 months). The cumulative probability of success by Kaplan Meier analysis was 85. 95%at 12 months and 82.83%at 24 months. The mean number of postoperative antig laucoma medications (0.75 ±.0.80) was also significantly lower (P< 0.001) than the mean preoperative number of antiglaucoma medications (2.83±0.72). The most common complication was corneal-tube contact, which occurred in five (4.10%) e yes. Retinal detachment occurred postoperatively in one eye with the clinical di agnosis of neovascular glaucoma secondary to Eale’s disease. Two patients had t ube extrusion requiring repositioning and reinforcement with scleral patch graft . Conclusions: Ahmed Glaucoma Valve implantation is an effective and relatively safe therapy for the treatment of refractory glaucoma in Indians.
文摘BACKGROUND AND OBJECTIVE: To evaluate the postoperative visual acuity and refractive changes occurring after bilateral frontalis brow suspension surgery in pediatric patients with congenital blepharoptosis. PATIENTS ANDMETHODS: Twenty-three patients between 4 and 12 years old with severe congenital blepharoptosis (unilateral in 21 cases and bilateral in 2 cases; total of 25 eyes) and poor levator function underwent bilateral frontalis brow suspension surgery by Crawford’s double triangle method with 4:0 expanded polytetrafluoroethylene sutures. The non-ptotic eyes (21 eyes) undergoing frontalis brow suspension surgery served as the control group. All patients had best-corrected spectacle visual acuity (BCSVA) of more than 6/9 preoperatively in both eyes. Changes in the postoperative BCSVA, binocularity, relevant refractive parameters, lid position, lagophthalmos, lid lag, and tear break-up timewere evaluated in both groups for 12 weeks and appropriate statistical tests were applied. RESULTS: Significant differences were found in the baseline characteristics and the postoperative changes in the eyes with and without ptosis. However, these were found to be transient and did not result in any new cases of amblyopia postoperatively. No complications requiring revision of surgerywere seen. CONCLUSIONS: The changes in the BCSVA after frontalis brow suspension surgery are transient. Retinoscopy, manual keratometry, and corneal videokeratoscopy are simple and effective methods to evaluate the sequential refractive changes occurring in these eyes.
