either of two pairs of mucomembranous folds in the larynx. The upper pair (false vocal cords) are not concerned with vocal production; the lower pair (true vocal cords or vocal folds) can be made to vibrate and produce sound when air from the lungs is forced over them See also glottis related adjective glottal.
Vitamin A drops. Vitamin A eye drops have been found to help provide lubrication for dry eyes and eye drops that contain vitamin A, such as Dakrina, VivaDrops and other over the counter drops with vitamin A added are often preferred to prescription solutions for dry eyes.itamin A eye drops have also been shown to provide treatment for a specific type of eye inflammation called, superior limbic keratoconjunctivitis that affects the cornea and inside of the upper eyelids.
Vitamin A also helps reduce the risk of age-related macular degeneration (AMD) and it inhibits the formation of cataracts. AMD and cataracts are the leading causes of visual impairment, so getting enough Vitamin A is essential to the health of your eyes.ntioxidants â Vitamin A. Vitamin A is an antioxidant found in foods derived from animals, including meat and eggs, and also in fruits and vegetables like carrots and spinach. Most types of milk are also fortified with vitamin A. Vitamin A is essential to the proper functioning of the retina.