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Ocular components values and their intercorrelations in Saudi Arabians.

¹Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia. osuobeni@ksu.edu.sa

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)

|April 18, 2000

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This study measured ocular components in adult Saudi Arabians, finding significant differences between males and females in anterior chamber depth, vitreous chamber depth, and axial length. The axial length/corneal radius ratio strongly correlated with refractive error.

Area of Science:

Ophthalmology
Optometry
Human Anatomy

Background:

No prior research exists on ocular component dimensions and intercorrelations in adult Saudi Arabians.
Understanding these parameters is crucial for ophthalmic assessments and refractive error analysis within this population.

Purpose of the Study:

To measure ocular components and their intercorrelations in adult Saudi Arabians.
To investigate sex-based differences in ocular dimensions.
To correlate ocular component dimensions with refractive error.

Main Methods:

Ultrasonography and keratometry were used to measure ocular components.
152 adult Saudi Arabian subjects aged 16-50 years participated.
Statistical analyses were performed to determine intercorrelations and group differences.

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Main Results:

Males exhibited significantly longer anterior chamber depth (ACD), vitreous chamber depth (VCD), axial length (AL), and axial length/corneal radius ratio (AL/CR) compared to females.
The AL/CR ratio showed the highest correlation with refractive error.
Myopes presented with significantly deeper ACD, VCD, and higher AL/CR ratio than nonmyopes, and thinner lenses than hyperopes.

Conclusions:

The study provides the first normative data for ocular components in adult Saudi Arabians.
Ocular component dimensions and their intercorrelations in this cohort are comparable to other racial groups with similar refractive errors.
Findings highlight the importance of considering sex and refractive status when evaluating ocular dimensions.