Lens Diameter, Anterior Chamber Depth, and Vitreous Depth in Adult Patients: A Nigerian Study

Abstract

Context: The awareness of the diversity of ocular biometry is vital in the management of glaucoma and pathologies of the lens. Aim: To establish the normal globe biometric parameters of adults in Delta State, Nigeria. Setting and Design: An observational retrospective cross-sectional study at the Radiology Department of Teaching Hospital in Delta State. A purposive sampling technique was adopted. Materials and Methods: After obtaining ethical approval, ocular biometry was conducted on 150 adult brain MRI scans (75 males and 75 females) using a digital caliper. Statistical Analysis Used: The data were analyzed and summarized in descriptive statistics. Inferential statistics were employed for comparison across gender, side, and age groups, as well as to determine the association between variables. A significance level of 5% was adopted. Results: The anterior chamber depth (ACD), vitreous depth, superoinferior (SI), and anteroposterior (AP) lens diameters were symmetrical. All the parameters lacked sexual dimorphism, while the AP and SI lens diameters significantly varied between the 10 year’s age groups (P < 0.05). Age had a significant positive correlation with the AP and SI lens diameters and a negative association with ACD and vitreous length. The vitreous length had a significant positive link with the ACD and SI lens diameter (P < 0.05). The AP lens diameter had a significant negative correlation with ACD and vitreous length (P < 0.05). Conclusion: The normal ocular biometry obtained can be used within the studied population to help in the diagnosis of ocular conditions, management of cataracts, and the design of intraocular lenses.