Night blindness is a type of vision impairment that causes you to experience poor vision at night or in dimly lit environments. Learn more about the causes of night blindness and how to treat it.

When you think of vision trouble, you might look at the issue head-on-literally. Determining how well you can see right in ...

Legal blindness: When your vision, in both eyes, can't be corrected to better than 20/200. Or when you have a visual field of 20 degrees or less. (Your eye doctor may call this tunnel vision.) ...

Unfortunately, not every cause of night blindness is treatable. Certain genetic disorders, such as retinitis pigmentosa, can cause night blindness, which may get worse as people age. But in most cases ...

Retinitis pigmentosa often starts as night blindness and worsens over time, possibly leading to tunnel vision. Currently, there is no cure for gene-related color vision deficiency.

In the progression of symptoms for RP, night blindness generally precedes tunnel vision by years or even decades. Many people with RP do not become legally blind until their 40s or 50s and retain ...

Night blindness is usually the first sign of RP. Later, you may have blind spots in your side (peripheral) ... Later, you may develop tunnel vision and find it harder to see details.

People with glaucoma may experience changes to their vision. These can include blurriness, blind spots, ... blind spots, and tunnel vision. Learn more here. ... whether for day or night vision.

UCLA scientists found that in early retinitis pigmentosa, rod bipolar cells in mice rewire to connect with cones, preserving ...