Nasal and temporal curvatures of lamina CRIBROSA in myopic eyes.
Sci Rep
; 12(1): 16561, 2022 10 04.
Article
in En
| MEDLINE
| ID: mdl-36195652
ABSTRACT
Little is known about the myopic characteristics of lamina cribrosa (LC) curvature. As such, we investigated nasal and temporal LC curvatures in myopia. In this retrospective, cross-sectional study, 144 myopic eyes (refraction < - 2D) and 88 non-myopic eyes (refraction > - 0.5D) underwent swept-source optical coherence tomography scanning of the LC. The anterior border of LC curvature was delineated with 17 points and interpolated with the "cardinal spline" curve-fitting method. The average curvature indices of the temporal and nasal sides were presented as the temporal and nasal curvatures. Myopic eyes had a mean refraction of - 6.7 ± 2.8D, while for non-myopic eyes, the value was 0.3 ± 1.0D. Nasal LC curvature was visible in 54 myopia (37.5%) and 42 non-myopia (47.7%) cases (P = 0.126), and temporal LC curvature was visible in 142 myopia (98.6%) and 68 non-myopia (77.3%) cases (P = 0.001). The nasal LC curvature was significantly larger in myopia than in non-myopia (P < 0.001). Contrastingly, the temporal LC curvature was significantly smaller in myopia than in non-myopia (P < 0.001). Axial length was associated with larger nasal LC curvature, smaller temporal LC curvature, and larger nasal-temporal LC curvature difference (all P's < 0.05). In myopic relative to non-myopic eyes, LC curvature was decreased temporally and increased nasally.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Myopia
Type of study:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
Sci Rep
Year:
2022
Document type:
Article