نتایج جستجو برای: orbscan
تعداد نتایج: 206 فیلتر نتایج به سال:
purpose: to evaluate the effect of a multimedia software program on the ability of interpreting orbscan ii outprints in ophthalmology residents, affiliated to shahid beheshti university of medical sciences, and compared the results with the conventional teaching method. methods: this prosepective randomized crossover study enrolled 17 ophthalmology residents (11 second year and 6 third year). a...
To the Editor: In her recent editorial (Roberts C. The cornea is not a piece of plastic. J Refract Surg 2000;16:407-413), Dr. Roberts points out that biomechanical flattening enhances a myopic excimer laser ablation and works against a hyperopic ablation. Would the circular severing of corneal lamellae in hyperopic ablation not lead to a contraction of the central part of these lamellae with a ...
Background : Posterior corneal elevation changes are keys to early diagnosis of corneal ectasia after keratorefractive surgery, so it is important to use an accurate method for measuring posterior corneal elevation. The purpose of this study is investigating posterior corneal elevation changes with Pentacam(HR) on patients underwent photorefractive keratectomy. Methods: In this clinical tri...
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