The month of February is Low Vision Awareness Month. What exactly is low vision? Low vision describes significant visual impairment that isn't correctable through glasses, medication, eye surgery or contact lenses. It's often characterized by partial sight such as blind spots, tunnel vision or blurred vision. The most common causes of low vision in the United States are glaucoma, age-related macular degeneration (AMD), diabetic retinopathy, and cataracts. There are several other causes of low vision as well such as strokes, traumatic brain injury and other diseases.