Abstract
Introduction: Refractive errors are becoming a problem in many societies, with prevalence rates of myopia in many Asian urban countries reaching epidemic proportions. This study aims to determine the prevalence rates of various refractive errors among medical students of Kist Medical College Teaching Hospital, Nepal.Materials and Methods: Medical students were included in the study. Demographic data was obtained via questionnaires filled in by the students after taking informed verbal consent. Refractive error measurements were determined by dry retinoscopy and additional cycloplegic refraction as and when needed.Results: The prevalence rate of simple myopia was 64.81% and 3.7% had high myopia. Hyperopia (Hypermetropia) was present in 1.8% of the participants while overall astigmatism prevalence rate was 29.6% among medical students. Conclusion: Prevalence rates of myopia in medical students are found to be quite high.Conclusions: Prevalence rates of myopia in medical students are found to be quite high.Nepalese Medical Journal, vol.1, No. 1, 2018, page: 21-23
Highlights
Refractive errors are becoming a problem in many societies, with prevalence rates of myopia in many Asian urban countries reaching epidemic proportions
The latter term is employed to describe the clinical condition in which there is a variation from a perfect coincidence of the posterior principal focus of an eye’s refractive media and the retina, while the former denotes the clinical condition in which the perfect coincidence exists
A further classification of the latter condition is made based upon the location of this posterior principal focus formed relative to the position of the retina
Summary
Refractive errors are becoming a problem in many societies, with prevalence rates of myopia in many Asian urban countries reaching epidemic proportions. The refractive status of the eye is an expression used to denote the relationship between the refractive mechanism (dioptrics) of the eye and the spatial location of the sensory layer of the eye (retina). This is broadly classified into two groups; emmetropia and ametropia. The latter term is employed to describe the clinical condition in which there is a variation from a perfect coincidence of the posterior principal focus of an eye’s refractive media and the retina, while the former denotes the clinical condition in which the perfect coincidence exists. A third condition exists in which the posterior principal focus fails to form a point focus and this is denoted as astigmatism
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