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Lincoln, NE
A 58-year-old female asked:

wear contacts during day & glasses in evening. this morning wore glasses instead of contacts & vision not good in morning but was in evening. why?

3 doctor answers3 doctors weighed in
Dr. Alessandra Bertolucci
Ophthalmology 33 years experience
Normal fluctuation: There is a change of refraction (the correct prescription of glasses or contacts) during the day and especially if you do a lot of reading of computer work. Usually cause more myopia and makes the eye clear at near but not clear at distance.
Dr. Richard Carlin
Ophthalmology 50 years experience
Corneal changing: Spectacle blur possibly due to changes in the cornea induced from contacts. Should have them checked by eye doctor.
Dr. Carl Hyder
Ophthalmology 37 years experience
Changing eye shape: Contact lens alters your corneal shape. Your glass prescription changes as you stay out of the contact lens. In short due to your contact lens wear the previous day your prescription changed but returned to normal as you stayed out of the lens throughout the day.

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Last updated Oct 27, 2017

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