ABSTRACT
One of the greatest issues facing the cataract surgeon today is accurate prediction of post-operative refractive error. With use of intraoperative autorefractometry (IOAR), such errors can be detected and post-operative refractive errors avoided. An 83-year-old woman was admitted for right eye phacoemulsification, with aimed at -1.78D with Sanders/Retzlaff/Kraff/T (SRK/T) formula implantation under local anesthesia. IOAR was performed after IOL insertion. The first estimate was +1.1D, indicating hyperopia, and far from the desired refraction above 2D. IOL exchange to +11.5D was, therefore, performed. The second estimate was -0.13D and the operation was completed. The final refraction (3 years after operation) was -0.25D. With IOAR, we were able to avoid the unpleasant surprise of a mistaken intraocular lens power. Intraoperative autorefractometry is useful for avoiding errors in IOL power.
ABSTRACT
PURPOSE: To present the long-term follow-up results of Baerveldt glaucoma implant (BGI) with a drainage tube from the pars plana in secondary glaucoma patients. METHODS: The subjects were patients with light perception and secondary glaucoma (> 21 mmHg) who had received more than 2 glaucoma operations: 11 were neovascular glaucoma patients and 5 angle-closure glaucoma patients with peripheral anterior synechia. After vitreous surgery, a BGI plate was fixed at the sclera in the superior temporal equator, and a drainage tube inserted from the pars plana into the vitreous cavity. The successful criteria needed to satisfy the 3 following conditions: 1) vision of more than light perception, 2) IOP > or = 5 mmHg and not higher than 22 mmHg, 3) no need for further glaucoma operations. RESULTS: The follow-up period was 82.5 months (from 5 to 172 months). Eight patients were judged a success, 4 patients a failure and 4 patients quit for personal reasons. The 10-year success rate was estimated at 72.8%. CONCLUSIONS: BGI via the pars plana is a useful method for long term IOP lowering effect in secondary glaucoma.
Subject(s)
Glaucoma Drainage Implants , Glaucoma/surgery , Adolescent , Adult , Aged , Female , Follow-Up Studies , Glaucoma, Angle-Closure/surgery , Glaucoma, Neovascular/surgery , Humans , Male , Middle Aged , Pars Planitis , Treatment OutcomeABSTRACT
PURPOSE: This study was aimed to investigate the preventive effects of theanine treatment on a rat model of oxygen-induced ischemic retinopathy (OIR). METHODS: OIR was induced by maintaining the Sprague-Dawley neonatal rats in 80% oxygen. The rats were treated once daily with gastric gavage of theanine (5 or 50 mg/kg) or distilled water (DW) from postnatal days 6 to 17. The retinal neovascularization (NV) was scored and avascular areas(AVAs) were measured as a % of total retinal area (% AVAs) at day 18. RESULTS: The % AVAs in 5 mg/kg theanine (13.2 +/- 2.8%) and 50 mg/kg theanine (9.4 +/- 2.2%, p < 0.05) treatment were lower than those in DW (18.9 +/- 2.9 %). The NV scores with 5 mg/kg theanine(4.2 +/- 0.5) or 50 mg/kg theanine (3.4 +/- 0.6) treatment were lower than those with DW (4.7 +/- 0.6). CONCLUSION: Theanine treatment suppresses the neovascularization in a rat model of OIR. These results suggest that theanine may prevent retinopathy of prematurity.
