I’ve worn glasses about sixteen hours a day my entire adult life. Got my first pair around 10. Acclimating took maybe four or five days of minor discomfort. The improved vision was incredible and as a child I had child durability, so I didn’t mind the discomfort. I vividly remember how strange it felt for air to hit my face with glasses on while walking or running.

Every time I get a major prescription update it takes two or three days to feel “right”. Until then I have some disorientation. I would expect an adult who hasn’t consistently worn glasses to feel that more keenly.

If I had continued eye strain after three days of constant and consistent wear, I would call the optometrist. If it lasted a week and the optometrist was blowing me off I’d consider my options. Some prescriptions are better than others. I could tell you exactly when I got my best prescription, it was life changing. I didn’t know people could see like that. I’ve never had a “bad” prescription to the best of my knowledge, every time I’ve updated it has been an improvement.