Anterior chamber indices in a population-based study using the Pentacam

Area of Science:

• Ophthalmology
• Biometry
• Public Health

Background:

• Anterior chamber biometry is crucial for understanding ocular health and refractive error.
• Limited data exists on anterior chamber parameters in rural populations.
• The Pentacam provides advanced imaging for detailed ocular measurements.

Purpose of the Study:

• To determine the distribution of anterior chamber depth (ACD), anterior chamber volume (ACV), and anterior chamber angle (ACA) in a rural Iranian population.
• To investigate the association of these parameters with age, sex, and refractive error.

Main Methods:

• A cross-sectional study involving 2681 participants (aged 6-90 years) from two Iranian villages.
• Ocular biometry, including ACD, ACV, and ACA, was performed using the Pentacam.
• Statistical analyses, including multiple linear regression, were used to assess correlations.

Main Results:

• Mean ACD was 3.37 mm, ACA was 34.82°, and ACV was 159.17 µL.
• ACD, ACA, and ACV decreased with increasing age.
• Males exhibited significantly higher ACD and ACV values compared to females.

Conclusions:

• Aging significantly impacts ACD, ACV, and ACA, leading to a decline in these measurements.
• Emmetropic individuals generally presented with larger anterior chamber dimensions than hyperopic individuals.
• This study provides valuable data on anterior chamber biometry in a rural population.