Spontaneous refractive error, ocular biometry and age related lens changes in a population of geriatric rhesus macaques.

ABSTRACT: The purpose of this investigation was to determine refractive error, ocular biometry and age-related lens changes in a population of geriatric rhesus macaques (Macaca mulatta) from the California National Primate Research Center (CNPRC). Ophthalmic examination was performed in 182 rhesus macaques [Formula: see text] 19 years of age using a cross-sectional study design, including streak retinoscopy, anterior segment tomography, A-scan ultrasound biometry and handheld slit lamp biomicroscopy. Median spherical equivalent refractive error was + 0.75 D with an interquartile range (IQR) of 0 to 1 D. Most eyes were hyperopic (n = 102, 55%) or emmetropic (n = 68, 36%); myopic eyes were the least common (n = 17, 9%). Anisometropia was present in 13 subjects (14%). Mean (± SD) corneal curvature was

SUBMITTER: Ross JM 

PROVIDER: S-EPMC12783095 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature