Visual distortion is a symptom with several possible causes, which is characterized by a deterioration in vision. It may be a sign of an underlying condition such as macular degeneration, so it is important to seek medical treatment for visual distortion. Visual distortion may be caused by corneal thinning or distortion, or other ocular conditions, such as keratoconus or astigmatism.

Symptoms of visual distortion include poor vision and problems with certain tasks, such as reading. Examples of vision distortion include blind spots, blurry vision, distortion of shapes (for example, straight lines appearing wavy), flashes of light, loss of peripheral vision, and sensitivity to light.

Treatment of visual distortion will depend on the cause of the condition but may include prescription medication. Drug classes commonly used to treat visual distortion are photoenhancer medications, such as Photrexa.