Several medical conditions result in retinal swelling, but one of the most common causes is a damaged vein in the retina, according to the American Academy of Ophthalmology. Doctors at Retina Associates claim that most patients who undergo treatment for this condition experience vision improvements.
Most patients who suffer from retinal swelling as a result of a damaged vein experience vision loss from swelling and circulation loss, explains Retina Associates. Damaged vision from the loss of circulation is unlikely to be restored through treatment, but a degree of the vision lost due to swelling can be restored. The degree of restored vision depends on the extent of the swelling and the severity of the underlying blockage.