Objective Quantification of Retinal Shortening: Sonographic Evidence of Intraretinal Proliferative Vitreoretinopathy

Abstract

Mean duration of RD was 14.2 months and a mean of 2.8 retinal quadrants had epiretinal PVR, subretinal PVR, or both. Mean RCR was 0.81 and was the least in superior temporal quadrant. Seven patients developed recurrent RD, five at the first weekly visit. All of these patients had an RCR of less than 0.8 in at least one quadrant, whereas none of the remaining three patients had a quadrantic RCR of less than 0.8 (P = .008). Mean RCR was less than 0.8 in four of seven patients with recurrent RD (P = .2) CONCLUSION: Retinal shortening can be measured objectively with USG based RCRs. Low RCR in any retinal quadrant is a serious concern deserving appropriate patient counseling. [Ophthalmic Surg Lasers Imaging Retina. 2016;47:746-750.].

Retinal shortening: Ultrasonic evaluation of proliferative vitreoretinopathy

“…The detailed methodology of performing the USG B-scan has been presented in the parent study. [ 4 ] In brief, preoperative USG B-scan of the involved eye was performed in all the patients and longitudinally sectioned images were obtained. Optic nerve head was present in each image.…”

“…[ 3 ] The need is evident if one considers the role of iPVR in causing recurrent retinal detachment (RD) following VRS/scleral buckling procedures. [ 4 ] iPVR has been a subjective diagnosis and may be oblivious to the naked eye examination. [ 4 5 ] In this regard, a new technique was introduced recently to quantify retinal shortening or iPVR with the help of ultrasound (USG) imaging.…”

“…[ 4 ] iPVR has been a subjective diagnosis and may be oblivious to the naked eye examination. [ 4 5 ] In this regard, a new technique was introduced recently to quantify retinal shortening or iPVR with the help of ultrasound (USG) imaging. [ 4 ] The technique involves measuring retinal-to-choroidal length ratios (RCR).…”

“…[ 4 5 ] In this regard, a new technique was introduced recently to quantify retinal shortening or iPVR with the help of ultrasound (USG) imaging. [ 4 ] The technique involves measuring retinal-to-choroidal length ratios (RCR). In that study, only patients with advanced ePVR were imaged.…”

“…During the study, we noted, as also pondered by others, that the impact of epiretinal PVR (ePVR) and subretinal PVR (sPVR) on retinal shortening or iPVR cannot be negated entirely, and they may occur simultaneously. [ 4 6 ]…”