RESEARCH ARTICLE
Refractive Error and Ocular Biometry Among Young adults From Cuiabá, Brazil
Celso Marcelo Cunha1, *
Article Information
Identifiers and Pagination:
Year: 2023Volume: 17
E-location ID: e187436412212300
Publisher ID: e187436412212300
DOI: 10.2174/18743641-v17-e230109-2022-33
Article History:
Received Date: 27/6/2022Revision Received Date: 9/12/2022
Acceptance Date: 9/12/2022
Electronic publication date: 02/02/2023
Collection year: 2023
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Objective:
To investigate the distribution of refractive errors and their association with ocular biometric data, family history, and environment variables in medical university students of first to six semesters of UNIVAG - MT.
Methods:
A general ophthalmological exam was performed including corneal topography and ocular optical biometry. Lens power has calculated by Bennett and Rozema’s formula. A questionnaire regarding a family history of myopia and lifestyle visual activities was applied. Only university students with normal ophthalmological exams were included. Statistical significance was considered at the level of p<0.05.
Results:
One hundred twenty-eight students were selected, whereas the other 13 were excluded. The mean age was 21.28 ± 2.18 years. Forty-four (34.4%) participants were males. Regarding refractive errors, 18 (14.1%) were hyperopic, 41 (32%) were emmetropic, 61 (47.7%) were myopic, and 8 (6.3%) were high myopic. The mean and standard deviations of spherical equivalents, axial lengths, keratometries (K1 and K2), and lens powers were -1.27 ± 2.21 D, 24.17 ± 1.07 mm, 42.90 ± 1.25 D, 43.94 ± 1.37 D, and 22.62 ± 1.73 D, respectively. In relation to the family history of myopia, one parent was myopic in 28 (50%) of the subjects, and both parents were myopic in 7 (12.5%) subjects. The average of hours per week spent outdoors were 5.82 +/- 5.80 hs. and spent 2.18 +/- 2.37 hs. at sports activities at night.
Conclusion:
Myopia was the most frequent refractive error among the medical university students subject of this study, and was approximately three times higher than those reported for other samples of the Brazilian population. There was a positive correlation between refraction errors and axial length.