Usually no. Vision insurance is designed to help pay the costs associated with vision correction through glasses or contacts. Eye problems that are associated with disease or injury, including cataracts and glaucoma, are covered under the employee’s health insurance.
“Treat disease through diet, by preference, refraining from the use of drugs; and if you find what is required in a single herb, do not resort to a compounded medicament” by Baha’u’llah cited in J. E. Esslemont, "Baha'u'llah and the New Era"