الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Correction of high myopia is one of the major problems in ophthalmology. Although, spectacle is the safest method, the disadvantages of thick glasses are not accepted for ]110St of patients. Soft contact lenses, in spite of providing an excellent vision, may produce some complications and become intolerable. Over the last few years 111 any surgical alternatives have been developed for correction of high myopia. The aim of this work is to evaluate automated lamellar keratoplasty (ALK) which decrease the curvature of the central cornea by controlled resection of stromal tissue to reduce its refractive power. This study was carried out on 220 eyes of 144 patients (82 males and 62 females) with ages ranged from 19 to 58 years. The preoperative myopia ranged from -4.0D to - 32.5D with a mean of -13.02D. The mean values of preoperative keratometric readings (K 1 & K2) were 44.94D and 43.67D respectively. Preoperative spectacle corrected visual acuity in the majority of cases (62.3%) ranged between 6/60 to 6/18. The range of the preoperative corneal thickness was 470-590.