ABSTRACT

Objective: To compare the mean difference of spherical, cylindrical and cylindrical axis between subjective and auto refraction.

Study Design: Cross-sectional study

Place and Duration of Study: Department of Ophthalmology, Bolan University of Medical & Health Sciences/Helper’s Eye Hospital, Quetta from 1st January 2020 to 31st December 2020.

Methodology: Two hundred and thirty patients of both genders undergoing retinoscopy were enrolled and age between 15 to 60 years. After taking written informed consent detailed demographics including age, sex, and body mass index were recorded. Refractive error was measured by auto and subjective refraction methods. Detailed anterior segment examination with slit lamp and dilated fundus examination with indirect ophthalmoscopy was performed.

Results: There were 130 (56.52%) males and 100 (43.48%) patients were females. Mean age of patients were 39.42±8.77 years. The difference of visual acuity was significant difference (P<0.05) between auto and subjective refraction.

Conclusion: The mean difference of visual acuity between auto and subjective refraction was significant.

Keywords: Retinoscopy, Subjective refraction, Auto refraction, Refractive error