Background/Purpose: Amblyopia is one of the reasons for impairment of vision in children which also affects depth perception and binocular vision. Early diagnosis can help in early and effective treatment. Unawareness can cause delay in detection and visual loss can be irreversible.
This study was conducted to determine the prevalence of amblyopia in school students of Wellington which is a hilly area in Tamil Nadu of Southern India between age of 3 years and 17 years.
Methods: A prospective observational cross-sectional study was carried out in the school children of Wellington which is a hilly area in Tamil Nadu of Southern India between age of 3 years and 17 years. Visual acuity and torch light ophthalmic examination was carried out. Children who had reduced visual acuity were subjected to complete eye examination including refraction, pin hole test, slit lamp examination, orthoptic testing, fundus examination alongwith cycloplegic refraction and retinoscopy to find out the cause for defective vision.
Results: A total of 827 students were enrolled in this study. The age ranged from 3 years to 17 years. There were 418 males and 409 females with male to female ratio of 1:1.02. The mean age was 11.10 years +- 2.06 years (age range 3 to 17 years). Out of the 827 students, 11 were found to have amblyopia. The prevalence of amblyopia in a hilly area of southern India is 1.33%.
Conclusion: The prevalence of amblyopia in a hilly area of Southern India is 1.33%.