Good functional outcome is possible following retinectomy surgery despite advanced pathology and often multiple surgical procedures. Retinal redetachment as a result of reproliferation and hypotony appear to be the main reasons for anatomical and functional failure. The clinical features we have identified as good indicators for improved final visual acuity such as shorter tamponade duration, removal of silicone oil, smaller retinectomy size, fewer previous operations and better preoperative vision are surrogate markers of less advanced PVR and should prompt retinal surgeons to consider retinectomy at an earlier stage in the process of PVR development. Clinicians should be aware of the small risk of sympathetic ophthalmia from complex retinal surgery.
We identified an increase of LMH diameter related to the presence of ERM and a decrease of the foveal thickness within a period of observation which ranged from 24 to 54 months (mean 37.1 months).
OCT was able to detect vitreous abnormalities such as vitreomacular traction, vitreous strands over the optic disc and complete or partial posterior vitreous detachment associated with optic disc pit maculopathy. Our observations support the view that the abnormal vitreous over the macula and optic disc is likely to play a role in the development of macular elevation in cases with optic disc pit. Prospective OCT studies could further assist to better understand the role of vitreous in this disease.
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