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Corneal biomechanical properties in myopic and emmetropic children
M Marinescu1, D Dascalescu, M Constantin
1Department of Ophthalmology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania. dana.dascalescu@umfcd.ro.
Objective:
The purpose of this study was to investigate the relationship between corneal biomechanics and ocular morphology in myopic children and adolescents.
Patients And Methods:
The study included 170 right eyes, from 170 patients under the age of 18 years, who underwent a complete ophthalmologic examination, gathering the following data: spherical equivalent (SE) (under pharmacological cycloplegia), biomechanical parameters - corneal hysteresis (CH) and corneal resistance factor (CRF), structural parameters - axial length (AL) and central corneal thickness (CCT).
Results:
The average age of the patients was 15.26 years old (55.29% girls, 44.70% boys). Out of the 170 eyes, 111 were myopic eyes and 59 were emmetropic. Myopic eyes had a significantly lower CH (p=0.001), CRF (p=0.002) and CCT (p=0.009), and higher AL (p<0.001) than emmetropic eyes. The AL and CCT were significantly higher in myopic males, compared to myopic females (p<0.001 and 0.001). In myopes, we found statistically significant negative correlations between AL and CH (Pearson's r=-0.218), CRF (r=-0.226) and also SE (r=-0.539), and positive between SE and either CH (r=0.193) or CRF (r=0.201).
Conclusions:
Corneal biomechanical properties are significantly related to myopia parameters in children.
