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. Vitamin A is vital for night vision, but it also affects tears. Lack of vitamin A damages the tear film. A prolonged deficiency causes severe dry eye, which can lead to eye ulcers, scarring and blindness, reports the Linus Pauling Institute.our diet can help prevent or treat dry eyes. Photo Credit Branislav Ostojic/Hemera/Getty Images. Lack of tears in your eyes causes dry eyes. Proteins, minerals and vitamins are all critical for making tears, which means that a lack of vitamins could increase your risk for developing dry eyes.