Ocular Changes during Pregnancy and Their Effects on Refraction.
Abstract
The differences between the findings obtained during two complete optometric exams conducted 3 months apart with 38 non-pregnant, and 93 pregnant subjects (divided equally into three groups based on the trimester of pregnancy in which their exams were done) were compared by single factor analysis of variance, F-ratios, and t-tests. Refractive error, corneal curvature and thickness, accommodative amplitude, ACA ratio and fusion break ranges were not found to be significantly different. The refractive changes experienced by the pregnant subjects in the various trimesters during the 3 months between exams were no different than the changes experienced by the non-pregnant subjects during the same time period, and even though a variety of physiological change occur during pregnancy, changes in refractive status are not significant, and do not preclude changing spectacle prescriptions during pregnancy. Keywords: Refractive error; Pregnancy; Corneal thickness; Corneal curvature; Ductions; Vergences; Accommodation; IOP; AC/A ratio; Theses.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 24, 1985
- Accession Number
- ADA158186
Entities
People
- T. D. Manges
Organizations
- Air Force Institute of Technology