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ObjectiveTo investigate the methods of reducing eye injury in phacoemulsification．MethodsPhacoemulsification with intraocular lens（IOL）implantation was performed on 98 cases（98 eyes）of cataract using a new type of phaco tip（MicroTip）with high vaccum and low energy．All the nuclei was harder than Grade Ⅳ．Postoperative visual acuity and eye injury were observed，including corneal edema，anterior chamber in flammation，intraocular pressure，IOL position and retinal condition．ResultsPostoperative visual acuity is 0.5 or better in all cases，1.0 ? or better in 28 cases（28.6％）．The complication during operation，such as anterior chamber hemorrhage，posterior capsule rupture and vitreous loss，did not occur．Postoperative complications were very slight．Two eyes（2％）suffered mild corneal edema that lasted no more than a week．No other complications were found．ConclusionMicroTip is a kind of safe and effective facility for phacoemusification，with which we can reduce the eye injury，especially dealing with the hard nuclei．
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OBJECTIVE： To confirm the efficacy and safety of latanoprost in treating glaucoma.METHODS： In a double blind， randomized control clinical trial， we compared the efficacy and adverse drug reactions of once daily topically applied 0.005％ latanoprost with those of twice daily 0.5％ timolol for 12 weeks in patients with open angle glaucoma or ocular hypertension.RESULTS： The study included 46 patients（22 pts.randomized to latanoprost treatment， 24 pts.to timolol） ， 46 patients remained at the end of the study.Comparing with baseline diurnal intraocular pressure（IOP） ， the IOP reduction（mean±standard deviation） achieved with latanoprost（7.86±2.39） mmHg， （31.1％， P<0.001），and timolol（6.24±2.58）mmHg （24.9%，P<0.001），the difference between the two groups（1.62mmHg） being significant（P<0.01）. Two patients treated with latanoprost had foreign body sensation. No other ocular and systemic adverse reactions related to the two drugs were found. CONCLUSION: The results of this study demonstrated that 0.005% latanoprost applied once daily is well tolerated and more effective in reducing IOP than 0.5% timolol applied twice daily. Thus, latanoprost has the potential for becoming one of the ideal antiglaucoma drugs.
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Objective To investigate the clinical characteristic of vernier acuity in age-related macular degeneration (AMD) patients. Methods The vernier acuity test soft wear system was developed to detect the 23 cases (39 eyes) of AMD patients. Tweenty-one eyes were atrophic type and 17 eyes were exudative type. Two fixed targets and a movable target are shown on the computer screen. The examinee was asked to adjust the position of the central target and the relationship between it and align them by using a track ball. The computer automatically recorded the deviations of distances between the movable target and the specific one, and then computed and analysed the results of average threshold and variance. Results Both the atrophic and exudative AMD had higher vernier acuity threshold and its variance than normal subjects, and the differences were significant (P
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AIM: To explore the role of PI3K /PKB pathway in the growth inhibition effect of rabbit lens epithelial cells (LECs) induced by (-)-epigallocatechin-3-gallate (EGCG). METHODS: Rabbit LECs were obtained by tissue culture; MTT colormetric assay was used to study growth of LECs; Western blotting was used to study the kinsae phosphorylation- and nonphosphorylation- level of PKB. RESULTS: (1) When LECs were preincubated with 25, 50 ?mol/L LY294002 for 1 h, 50 ?mol/L EGCG had little influence on the proliferation of LECs. It showed significant inhibition when EGCG increased to 100, 200 ?mol/L ( P