Distribution of Belin-Ambrosio indices using Pentacam HR for normal patients aged 6 to 21 years in the Riyadh area

Abstract

Objectives: To ascertain the Belin-Ambrosio indices distribution for Saudi patients aged 6-21 years in Riyadh. Method: Participants in this prospective, cross-sectional, observational, multicenter study ranged in age from 6 to 21 years old and were seen in several no n-ophthalmic emergency departments in Riyadh, Saudi Arabia, in 2017. Scheimpflug corneal tomography system in rotation was used to measure the cornea. Following optometric exams, corneal imaging and KC index measurements were performed using the Pentacam Results: The study's 366 participants were examined once the exclusion criteria were applied. All children's mean and standard deviation (SD) age was 17.41±4.83 years (range: 6–21 years). All Belin-Ambrosio indices percentiles for pediatric, adolescence, and young adult groups are within normal ranges. A comparison between Belin-Ambrosio indices and age demonstrates that the age groups have a statistically significant difference following indices topo astig, BAD Db, BAD Dp, BAD Dt, BAD Da, BAD Dy, BAD D, ART Min, ART Max and ART Avg with p-value 0.05. Also, the correlation coefficient results show a statistically significant correlation between Belin-Ambrosio indices and age with the following indices: Topo Astig, BAD Db, BAD Dp, BAD Dt, BAD Da, BAD Dy, BAD D, ART Min, ART Max, and ART Avg with p-value 0.05 as the age increases BAD Dt and BAD Dy, ART Min, ART Max, and ART Avg decrease. Also, As the age increases, the Topo Astig, BAD Db, BAD Dp, BAD Da, and BAD D increase. The correlation coefficient ranges from 0.11 negative weak to 0.65 negative moderate, and from positive 0.13 to negative strong 0.78. Conclusion:The usual range was seen in the Belin-Ambrosio indices. The Belin-Ambrosio indices and age groups differed statistically significantly.