الفهرس 
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Abstract
Purpose: Our aim is to study ocular diseases in symptomless and symptomatic newly admitted medical students in the faculty of medicine, Ain Shams University
Patients and Methods: This cross-sectional clinical study was conducted in Faculty of Medicine Ain Shams University. The study included 304 new medical students of class 2015 and 2016 who were randomly selected upon admission to college on October 2015 and October 2016 and who agreed to participate in this study. All participants underwent a complete ophthalmologic evaluation including detailed history and unaided visual acuity, best corrected visual acuity, anterior and posterior segment examination. Assessment of color vision by Ishihara test and binocular vision by titmus test.
Results: Myopia was found in 158 students (51.90%) followed by negative cylinder in 46 students (15.10%) then 6 students (2%) were hyperopic and 4 students (1.3%) with positive cylinder. Anisometropia was found in 32/304 (10.5%) of total population and 32/169 (18.9%) of total number students with refractive errors, 10 students were males and 22 students were females. Red green Color blindness was found in (1.6%); one student (0.3%) has total color blindness. (1.0%) have no gross stereopsis, 301 students (99.0%) have normal gross stereopsis by fly test. Fine stereopsis among studied group ranged from 0-9 (800-40 sec of arc) which was the ability to define the circles in titmus test but with mean of 7.29 ± 2.33(i.e. mean stereopsis was 60 sec of arc).
Conclusion: Normal vision is integral to an individual understanding of his visual world, and those with visual defects can experience difficulties in everyday life. from these visual impairment problems are refractive errors, color blindness and low degree of binocular vision which if left uncorrected can affect performance of medical students.