Ocular Biometric Characteristics Measured by Swept-Source OC
Researchers aimed to study the distribution of ocular biometric parameters utilizing a swept-source optical coherence tomography (SS-OCT) biometer in adult candidates for cataract surgery.

A single-center analysis of consecutive eyes measured with the IOLMaster 700 SS-OCT biometer.

Results:
--3836 eyes of 3836 patients were included in the study. The mean age was 72.3±12.8 years and 53% were females.

--The mean biometric values were: total corneal power (44.17±1.70D), total corneal astigmatism (TCA) (1.11±0.87D), mean posterior keratometry (-5.87±0.26D), posterior corneal astigmatism (-0.26±0.15D), axial length (AL) (23.95±1.66mm), anterior chamber depth (ACD) (3.18±0.42mm), lens thickness (LT) (4.49±0.47mm); white-to-white distance (WTW) (11.92±0.44mm), central corneal thickness (CCT) (0.54 ± 0.04mm), angle alpha (0.49±0.17mm), and angle kappa (0.34±0.17mm).

--There were sex-related differences in all biometric parameters with the exception of LT, angle kappa, and corneal astigmatism.

--Biometric parameters demonstrated correlations between AL, WTW distance, ACD, and LT.

--Age correlated with all parameters, with the exception of CCT and posterior keratometry. Angle alpha and angle kappa magnitudes also correlated.

--The prevalence of patients with TCA more than 0.75D, 1.0D and 1.5D were 59.1%, 43.4% and22.6%,respectively.

Most of the biometric indicators were associated with age and significant disparities between the sexes were observed. There were also high rates of TCA and big angles alpha and kappa among the individuals.

Source: https://www.sciencedirect.com/science/article/abs/pii/S0002939421003603?dgcid=rss_sd_all
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