ABSTRACT
OBJECTIVE: To investigate the diameters and disc area of central retinal vein occlusion fellow eyes (CRVO fellow eyes), whether there is any small diameter of the particular axis, which predisposing to central retinal vein occlusion (CRVO), or not. MATERIAL AND METHOD: A prospective analytic study between 78 CRVO fellow eye patients and 102 healthy control subjects was evaluated. Fast optic disc scan with Stratus OCT was obtained. RESULTS: Six axes of disc diameters, and disc area were not different between the groups. Analysis of the model excluding glaucoma within the study group (n = 59) revealed the similar outcome. CONCLUSION: Optic disc diameters and size in the CRVO fellow eyes were not different from normal subjects. Optic disc size appears not to be the pathogenesis of CRVO.
Subject(s)
Optic Disk/anatomy & histology , Retinal Vein Occlusion/diagnosis , Adult , Aged , Aged, 80 and over , Case-Control Studies , Female , Humans , Male , Middle Aged , Prospective Studies , Retinal Vein Occlusion/etiology , Tomography, Optical Coherence , Young AdultABSTRACT
OBJECTIVE: To investigate the central corneal thickness (CCT) in the central retinal vein occlusion fellow eye (CRVO-fellow eye) patients. MATERIAL AND METHOD: A cross-sectional study with 97 CRVO-fellow eye patients and 112 healthy subjects. Three measurements of CCT were obtained with ultrasonic pachymetry. RESULTS: Mean age of CRVO-fellow eye was higher than controls, 59.7 +/- 10.3 vs. 46.4 +/- 5.8 years, (p < 0.001). Males were more prevalent in CRVO-fellow eye than in the controls, 47.4% vs. 25%, (p = 0.001). In CRVO-fellow eye group, systemic diseases were more prevalent. Glaucoma and ocular hypertension were detected in 23 eyes (23.7%) of CRVO-fellow eye. Mean CCT of CRVO-fellow eye was thinner than controls, 529.2 +/- 30.3 vs. 543.3 +/- 31.8 on, (p = 0.001). Multiple linear regression models adjusted for age, sex, diabetes, hypertension, cup-to-disc ratio, IOP, and axial length revealed that mean CCT of CRVO-fellow eye was 16.9 microm thinner than controls. CONCLUSION: CRVO-fellow eye patients have thinner CCT than controls. The pathophysiology of this association is unclear It may be related to less lamina cribosa rigidity in the thin corneal eye. Lamina cribosa displacement may compress central retinal vein, leading to CR VO.
