Vitreoretinal surgery is the treatment of disorders related to the retina, vitreous and macula. Ophthalmic surgeons use specialised techniques, instruments and solutions to treat conditions that include retinal detachment, macular degeneration, diabetic retinopathy, and uveitis. Retinal and vitreous problems can cause severe loss of vision or even blindness. In some cases surgery may be beneficial and – if done at the right time – may prevent severe loss of vision.