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Ocular biometry using computed tomography: a study in Benin, Nigeria
1Radiology Department, College of Medical Sciences, University of Benin, Edo, Nigeria.
The Nigerian Postgraduate Medical Journal
|October 22, 2014
Summary
This study determined ocular biometry using CT scans in Nigerian adults. Findings provide baseline ocular dimensions for this population, useful for clinical applications.
Area of Science:
- Ophthalmology
- Radiology
- Medical Imaging
Background:
- Accurate ocular biometry is crucial for ophthalmic assessments and surgical planning.
- Establishing population-specific normative data for ocular dimensions is essential.
Purpose of the Study:
- To determine computed tomography (CT) measured ocular biometry in Mid-Western Nigeria.
- To establish a local normogram for ocular dimensions in the Nigerian population.
Main Methods:
- Retrospective analysis of ocular images from 200 patients with normal cranial CT scans.
- Measurement of ocular axial length and width from mid-axial CT images.
- Statistical analysis using SPSS version 17, with significance set at p < 0.05.
Main Results:
- Mean ocular axial length was 21.4mm (right) and 21.6mm (left).
- Mean ocular width was 21.6mm for both eyes.
- Ocular biometry showed variations based on eye laterality, sex, and age.
Conclusions:
- CT-based ocular biometry is feasible using existing cranial CT scans.
- The determined dimensions can serve as a local normogram for Nigerians and Black Africans.
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