Night vision is the ability to see, whether through biological or technological means, in a dark environment. Most instances, whether biological or technological, use a combination of two approaches: enhanced spectral range, and enhanced intensity range.

Natural home remedies
Eat blueberries when they're in season. They can help restore night vision.

You know the old joke about carrots being good for your eyes? Well, you've never seen a rabbit wearing glasses. Eat two or three carrots a day (raw or cooked) and/or drink a glass of fresh carrot juice. It's excellent for alleviating night blindness.

Eat more watercress in salads and/or drink watercress tea.

This remedy seems so yucky, we would not have included it had we not heard of the wonderful results from several reliable sources. Every day for two weeks, put a drop of raw honey in each eye. (We said "yucky," didn't we?) It stings like crazy for a few seconds until tears wash away the pain. Within a week or two, there should be a noticeable improvement in your night vision.