Citation Information :
Reddy S, Maheshwari A, Kumar PG, Nair N. Correlation Study of Axial Ocular Parameters with Height among Emmetropic Candidates appearing for Medical Evaluation. Journal of Medical Academics 2021; 4 (2):44-47.
Aim: The aim of our study was to determine any correlation between age, height, and ocular biometric variables, namely, pachymetry (central corneal thickness [CCT]), axial length (AL), and anterior chamber depth (ACD) in candidates appearing for medical evaluation.
Materials and methods: This was a cross-sectional, observational study conducted among the candidates reporting to a medical evaluation center of the Indian Air Force (IAF) for selection to military duties. A total of 724 emmetropic eyes of 362 candidates in the age group of 16–30 years were studied. All candidates were evaluated for AL, ACD, CCT, and height was measured. The data was analyzed by inferential statistics like unpaired t-test and Kruskal–Wallis test, followed by testing of Pearson's correlation coefficient r. The p-value < 0.05 is considered statistically significant.
Results: A total of 334 males and 28 females were enlisted in this study. The mean height of males and females was 174.45 ± 6.510 and 159.04 ± 3.837 cm, respectively. The mean AL (23.73 vs 23.14 mm, p < 0.001) and CCT (512.88 vs 504.98 µ, p < 0.841) were significantly greater in male candidates and ACD (3.60 vs 3.68 mm, p < 0.229) was more in female candidates. The mean CCT in males and females was 512.88 ± 26.978 and 504.98 ± 21.794 mm, respectively. Mann–Whitney U test showed that there were no significant mean difference between CCT and gender (p - 0.841). Kruskal–Wallis test showed that there was no significant difference between age groups and AL (p < 0.05). The mean AL in males and females was 23.73 ± 0.678, and 23.14 ± 0.353 mm, respectively, and there was a significant mean difference between AL and gender (p - 0.001). There was a statistically significant positive correlation noted between AL and height of the candidates.
Conclusion: The study revealed a positive correlation between AL and height. Individual height is one of the important parameters in assessing the fitness of candidates, along with axial biometry. Emmetropic refraction can be seen by the process of compensation or attenuation of variable axial biometric parameters. We recommend that AL criteria should be correlated with height parameters in candidates with myopia or any refractive surgeries prior to ascertaining the fitness status.
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