Frequency of myopia and associated risk factors in the adolescent population (10-16 years) of Karachi, Pakistan: a cross-sectional study.

ABSTRACT:

Objective

To estimate the prevalence of myopia and explore its risk factors in adolescents aged 10-16 years in Karachi, Pakistan.

Methods and analysis

This cross-sectional analytical study was conducted with 335 adolescents from 4 public and 2 private schools in Karachi. Data were collected using a structured questionnaire. Cox proportional hazards regression analysis was used to assess associations between myopia and various risk factors.

Results

The study found that the prevalence of myopia was 54% among participants. Multivariate analysis revealed a significant association between myopia and sleep quality as well as time spent on reading/writing activities. Adolescents with a sleep quality score greater than or equal to 4 had a 1.63 times higher likelihood of myopi

SUBMITTER: Sumra KA 

PROVIDER: S-EPMC12306310 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature