COMPUTED TOMOGRAPHY (CT) MEASUREMENT OF OCULAR DIMENSIONS AT BPKIHS
Nishant Mishra*, Mukesh Kumar Gupta, Pratima Kumari Shah and Karun Devkota
ABSTRACT
Background & objectives: In country like Nepal, CT scans are more readily available than MRI. No such studies have been carried out in our part of the world on CT and there is need to have local data. Almost no study is available correlating the ocular diameter taken in all three dimensions and correlating it with the age and body mass index (BMI) of the patients till date. This study has been planned with objective to measure the maximum anterior-posterior (AP), transverse (TD) & cranio-caudal (CC) diameter of the eyeballs, to compare the obtained data on right and left side and in male and female and to correlate the ocular dimension with age and BMI. Materials & Methods: This was prospective study on CT para-nasal sinuses (PNS) over 6 month duration done in the Department of Radiodiagnosis and Imaging starting from January 26, 2022, after ethical clearance. The collected data were entered in the MS excel 2013 and converted into SPSS 11.5. For descriptive statistics frequency, percentage, Mean & SD were used. Analytical tests were independent samples t-test, paired sample t-test & Pearson’s correlation. Results: Prospective 115 patients, 67(58.26 %) were Male & 48 (41.74 %) female. Maximum mean AP, transverse & CC diameters of both globes was 23.851.8 mm (mean SD) & 23.811.93 mm respectively; 23.93 1.94 mm and 24.06 2.06 mm respectively; 24.3 2.08 (mm) & 24.1 2.14 (mm) respectively & showed negative correlation in all 3 dimensions with the age of the patients & BMI. Conclusions: As pioneer study, it provided reference ranges of ocular diameter in all 3 dimensions on CT & it is first study which used all the three dimensions of ocular measurements correlating with age & BMI.
Keywords: Diameters, comparison, correlation.
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