Vitamin A is a component of a pigment concentrated in the retina called rhodopsin. The retina is a layer of tissue located at the back of the eye that senses light and sends signals to your brain that allow you to see. Rhodopsin is essential for vision and especially important for low-light vision. In fact, a vitamin A deficiency can lead to a condition called night blindness. Which makes it difficult to see in low-light conditions health.
In addition to being necessary for overall vision health. Vitamin A protects against common eye diseases. Such as age-related macular degeneration (AMD), a leading cause of vision loss in older adults.สมัครสมาชิก UFABET Maintaining higher blood levels of certain pro-vitamin A carotenoids. Such as beta-carotene and alpha-carotene. May significantly reduce your risk of developing AMD and slow the progress of AMD in people who already live with the condition.
Vitamin A supplements may also benefit people living with dry eye disease (DED). A condition that causes symptoms like dry eyes, blurred vision, and sun sensitivity. One study of 60 men found that taking 1,500 milligrams (mg) of vitamin A supplements for three consecutive days significantly improved the quality of the tears in males with dry eye, including their tear film.
The tear film is a layer of tears that covers the surface of your eyes, keeping them moist and preventing dryness. Reduced tear film quality is common with DED.