Clinical Ophthalmology (Nov 2020)
Central Macular Thickness in a Healthy Mexican Population Using Huvitz Optical Coherence Tomography
Abstract
Renata García-Franco,1 Dalia Méndez-Marín,1 Marlon García-Roa,1 Paulina Ramirez-Neria,1 Diego Valera-Cornejo,1 Van Charles Lansingh1,2 1Retina department, Instituto Mexicano de Oftalmología I.A.P., Santiago De Querétaro, Querétaro, México; 2HelpMeSee Inc, NY, New York, USACorrespondence: Diego Valera-CornejoInstituto Mexicano de Oftalmología I.A.P., Colinas de Cimatario, Avenida Estadio Sn, Centro Sur, Santiago De Querétaro 76090, Querétaro, MexicoTel +52 1 442 229 0776Email [email protected]: To determine normal macular thickness values in a healthy Mexican population and its variation by age and gender using Huvitz spectral-domain optical coherence tomography (HOCT-1F).Methods: This cross-sectional study included 211 consecutive eyes from clinically normal subjects (66 men, 145 women) between October 2018 and December 2018, with best-corrected visual acuities better than 20/30. One eye was selected for the macular scan using the Huvitz OCT (Huvitz OCT-1F, HOCT-1F, Huvitz Co., Ltd., Republic of Korea) with an automated segmentation algorithm. Three vertical and horizontal scans, centered on the fovea with an area of 9 mm, and a color 45° fundus photograph were obtained using Huvitz OCT-1F. Macular measurements were presented as means with standard deviations values for each of the nine regions defined by the Early Treatment Diabetic Retinopathy Study (ETDRS).Results: The mean age was 34.3± 11.9 years. Using the ETDRS map, the mean central subfield thickness (CST) was 227.4± 18.9 μm. Male gender was associated with greater CST (P< 0.001) compared to females. There was no association between mean macular CST (r2=0.011; P=0.11) and age. Macular thickness was thicker in the inner ring than in the outer ring, and there were no significant differences in mean CST among age groups (P=0.70).Conclusion: Normal macular thickness values using the Huvitz OCT in a Mexican healthy population aged from 18– 70 years were thinner in the foveal macular region than values reported in other populations. Female patients had a thinner CST, and age was not correlated with macular thickness.Keywords: retina, tomography, optical coherence, diagnostic imaging, Mexico