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《Medicial Journal of National Defending Forces in Southwest China》 1999-01
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CORNEAL TOPOGRAPHIC CONTRAST STUDY BEFORE AND AFTER EXCIMER LASER PHOTOREFRACTIVE KERATECTOMY

Lei Ming, Gong Shuzheng, Zhang Zhongyan Dpartment of Ophthalmology, Kunming General Hospital of Chengdu Military Command, Kumming, 650032.  
Objective: To analyze the morphological features of corneal surface before and after photorefractive keratectomy(PRK) and the decentralization of the ablation. Method: Corneal topography was examined on 148 eyes of 75 cases with myopia by computer-assisted photokeratography before and after PRK. Results: The corneal topography of most examined eyes(72. 3%) was bow tie pattern before PRK. But after PRK. the corneal topography of the ablated regions was mainly round or keyhole - like (78. 4%) bow tie pattern and semicircular were 19. 6% and 2. 0% was central island. The largest corrected diopter of astigmatism was - 1. 75D one time. The decentralization of the ablation site was an important cause of the decrease of the best corrected visual acuity, diplopia and dioptric regression. Conclusion: The examination on the corneal topography before and after PRK can display accurately the changes of the corneal surface morphology and also can improve curative effect.
【CateGory Index】: R779.63
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 Lei Ming, Gong Shuzheng, Zhang Zhongyan,Li Xusong and Yao Jianling, Kuming General Hospital of Chengdu Military Command, Kuming,650032;CLINICAL STUDIES OF THE HEALING OF DEFECTIVE CORNEAL EPITHELIUM AFTER PHOTOREFRACTIVEKERATECTOMY[J];Medicial Journal of National Defending Forces in Southwest China;1997-01
2 Gong Shuzheng, Lei Ming, Li Xusong, Zhang Zhongyan,Yao Jianling, Department of Ophgithalmology, Kunming General Hospital of Chendu Military Command, Kunming, 650032;CLINICAL OBSERVAITON OF TREATMENT OF MYOPIA AND ASTIGMATISM IN 1390 EYES WITH PRK[J];Medicial Journal of National Defending Forces in Southwest China;1997-03
【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 Lei Ming, Gon Shuzheng, Zhang Zhongyan, Li Xusong Department of Ophthalmology, Kunming General Hospital of Chengdu Militarv Command, Kunming, 650032.;A PRELIMINARY CLINICAL STUDY OF EXCIMER LASER IN SITU KER-ATOMILEUSIS FOR CORRECTION OF MYOPIA[J];Medicial Journal of National Defending Forces in Southwest China;1998-06
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Wang Zaowen;Pang Guoxiang;Zheng Wei;Wang Weiquan;Sun Yumin;Jin Yumei;Li Weiye;AN ANALYSIS ON FOLLOW-UP RESULTS OF PHOTORERRACTIVE KERATECTOMY FOR TREATMENT OF MYOPIA[J];CHINESE JOURNAL OF OPHTHALMOLOGY;1995-03
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