LAUSR

Purpose To predict the presence of tractional retinal detachment (TRD) in eyes with dense vitreous hemorrhage (VH) and proliferative diabetic retinopathy (PDR) by evaluating the status of posterior vitreous detachment (PVD) in fellow eyes using optical coherence tomography (OCT). Methods A total of 44 eyes from 22 patients who underwent vitrectomy due to dense VH with PDR were enrolled. Using OCT, the PVD status in the fellow eye was divided into two groups (incomplete and complete PVD). The incomplete PVD group included eyes without PVD and eyes with partial PVD. B-scan ultrasonography (USG) was performed on eyes with dense VH to evaluate the presence of TRD. Both OCT and B-scan images were reviewed by four ophthalmologists (two novices and two experienced), and the inter-observer agreement was evaluated. Results There was a difference in the inter-observer agreement regarding the presence of TRD in eyes with dense VH evaluated by B-scan between novice and experienced ophthalmologists (novice, kappa = 0.421 versus experienced, kappa = 0.814), although there was no difference between novice and experienced ophthalmologists in the inter-observer agreement regarding the status of PVD in the fellow eye evaluated by OCT (novice, kappa = 1.000 versus experienced, kappa = 1.000). All observed TRD during vitrectomy occurred in eyes with incomplete PVD in the fellow eye. Logistic regression analysis revealed a statistically significant relation between TRD and the age of the patient (odds ratio [OR] = 0.874, p = 0.047), and between TRD and incomplete PVD in the fellow eye evaluated by OCT (OR = 13.904, p = 0.042). Conclusion Evaluation of the PVD status in the fellow eye using OCT may be a useful predictor for detecting the presence of TRD in eyes with dense VH and PDR.