Some drops have a freshness index ranging from zero to five. If this index is 4 or 5, then the drops already quite strongly burn the eyes when applied. The fact is that many Asian countries use menthol as part of the treatment and prevention of dry eye syndrome, an ophthalmologist, doctor of medical sciences, employee of the Institute of the Human Brain. NP Bekhtereva RAS Ilmira Gazizova.
“Menthol has a local vasoconstrictor effect and an irritating effect on the eye surface. Due to this effect, its own tear production takes place. And indeed, for a short time, a person feels relieved, because a tear has developed, washing the conjunctiva and cornea, and therefore there is a certain feeling of freshness, ”explained the ophthalmologist.
However, dry eye syndrome is characterized by the imperfection of its own tears. When the osmolarity increases the content of various salts and acids that violate the neutral pH of the tear. With a dry eye, your own tears can cause irritation and lead to the production of tears with an incorrect Ph.
“This is a vicious circle. Therefore, to break this vicious circle, we prescribe artificial tears or lubricants. They are absolutely the same as natural tears, as osmolar, therefore they moisturize the eye well. And against this background you do not need to stand out with your vile tear, ”Gazizova concluded. .
For more information on which substances it makes no sense to treat dry eye syndrome without which substances, which drops are suitable for the prevention of age-related eye diseases, and which drops are harmful on the market, see. report “socialbites.ca”.