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SD‐OCT study of vitreoretinal traction at the obstruction site in patients diagnosed with branch retinal vein occlusion
Author(s) -
ASCASO F,
PADGETT E,
VILLEN L,
NUNEZ E,
PEIRO C,
CRUZ N,
DEL BUEY MA,
CRISTOBAL JA
Publication year - 2012
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2012.s046.x
Subject(s) - medicine , branch retinal vein occlusion , ophthalmology , vitreoretinal surgery , occlusion , traction (geology) , macular edema , retinal , surgery , retinal detachment , geomorphology , geology
Purpose Branch retinal vein occlusion (BRVO) typically occurs at an arteriovenous (AV) crossing site. Vitreoretinal traction migh thave a significant role in some cases. The aim of this study was to determine the prevalence of vitreoretinal traction at the obstruction site in patients diagnosed with BRVO. Methods Prospective observational case‐control study. 14 consecutive patients with BRVO were studied and the fellow eyes were taken as a control group. Spectral‐domain optical coherence tomography (SD‐OCT) was used to detect vitreous adherence or vitreoretinal traction at the obstruction site. Results SD‐OCT directed to the obstruction site revealed an adherence of posterior hyaloids without signs of retinal traction in six eyes (42.9%). Five eyes (35.7%) were associated with vitreoretinal traction at this point, and three eyes (21.4%) had neither vitreoretinal adherence nor vitreoretinal traction.Regarding the same vessel segment of the control eyes, only 2 cases (14.3%) presented a vitreoretinal adherence, whereas none of the cases showed a true vitreoretinal traction in the correspondent AV crossing site. There was a statistically significant difference (p<0.05) between both groups of eyes in relation to the prevalence of a vitreoretinal traction. Conclusion The existence of a common vitreoretinal adhesion at the obstruction site in BRVO patients is reported herein, pointing out the role of vitreoretinal traction in the etiology of some cases of BRVO and the important diagnostic capabilities of SD‐OCT and its 3‐D image reconstruction in the detection of this vitreous traction and its association with perivascular edema.