Advanced Analysis of Strabismus Amblyopia

Abstract

Purpose: To assess the incidence of amblyopia in strabismus patients with reference to age, sex, density, type of deviation and its classification (strabismus amblyopia and combined amblyopia). Materials and Methods: This study had been carried out at out patients department of SIMS/Services Hospital Lahore from August 2010 to August 2012.The material used for the study was Snellen chart, Prism bar, Retinoscope, ophthalmoscope, Trial box, Attractive toys. Visual acuity, squint assessment, cycloplegic refraction and fundoscopy were done in patients from 4 years to all age groups. Refractive prescription, and occlusion therapy was given according to patient's visual needs. Patients referred to consultant ophthalmologist for strabismic reconstructive surgery (traditionally called as cosmetic surgery). Results: Eighty four patients out of 322 (26%) had amblyopia. Fifty amblyopic patients (60%) were above the age of ten years. Male were (60%), female were (40%). Sixty two patients (74%) had dense amblyopia. Exotropic amblyopia (52%) was found to be more as compared to Esotropic amblyopia (48%).Strabismus amblyopia (71%) was more common as compared to combined amblyopia (29%). Conclusion: Amblyopia in strabismus patients is 26% with 74% severity or density. To decline its significant high rate and density, the eye health administration should launch an Amblyopia control program that will work at two levels; at community level and at hospital level. Key words: Esotropia (ET), Exotropia (XT), Strabismus amblyopia. Combined amblyopia, Amblyopia therapy, Orthoptics Department.