I have several issues including diabetes and get checked twice a year - covered by my insurance. Glasses I pay for myself but the prescription changes have been so minor that I get new ones about every 4-5 years. Mine too cost between $700-1000 with no fancy stuff. Astigmatisms, cataracts and an enlarged artery in my right eye require special lenses and coatings.
Worth every penny - I can see.
SINS