1. Optical coherence tomography changes following vitrectomy for long standing premacular hemorrhage in Valsalva retinopathy

    Optical coherence tomography changes following vitrectomy for long standing premacular hemorrhage in Valsalva retinopathy

    Dear Editor, Premacular hemorrhage is a common cause of sudden profound visual loss in otherwise healthy eye. One of the commonest causes of premacular hemorrhage in clinical practice is Valsalva retinopathy, which was first described by Thomas Duane in 1972 [1] . In the setting of Valsalva retinopathy these hemorrhages are a result of ruptured perifoveal capillaries because of raised intravenous pressure of the eye. This happens when the raised intra-thoracic pressure due to Valsalva maneuver is transmitted to the ocular venous system because of valve-less nature of the later. While the exact location of these hemorrhages has been disputed, they ...

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