Self-reported Myopia in Trinidad and Tobago: A Cross-sectional Study.

Abstract

Objective: The objective of this study was to determine the prevalence of self-reported myopia in Trinidad and Tobago.

Materials and methods: This study was a cross-sectional design, and data were collected using a validated structured questionnaire from January to April 2024. Systematic random sampling was used to select participants aged 15 and above to participate. Descriptive statistics were used to summarise the variables and the Chi-square test was used to assess for associations (P < 0.05).

Results: A total of 350 participated in the study giving a response rate of 91.15%. Majority of the participants were female (n = 197, 56.3%), mixed race (n = 126, 36%), resided in urban areas (n = 172, 49.4%) and aged 18-35 years (n = 168, 48.3%). The prevalence of myopia was 40.9% and the prevalence was significantly associated with age group, ethnicity, level of education and religion (P < 0.05). Myopia was associated with family history, lifestyle, use of spectacles, daily use of computers, near work, outdoor activities, sleeping and having a father or mother with myopia (All P < 0.05). In addition, ocular diseases such as cataracts and glaucoma were among the most frequent reported conditions.

Conclusion: The myopia prevalence observed in our study validates age-related trends, offers estimates across diverse age groups, and reveals a significant association between myopia rates and family history, with a self-reported myopia rate higher than clinical testing surveys but in line with global prevalence reports.