Undercorrection vs overcorrection?

Which is worse? To wear glasses that are too weak or too strong? Assume that getting the correct prescription isnt an option for me. Wearing ones that are too strong will weaken my eyes, correct? What about ones that are too weak? Arent my eyes straining less with weak ones than they would on my normal vision? So wont they still slow down the vision loss process? Thanks

[John C Hagan III, MD, FACS, FAAO]

Wearing glasses that are too weak or too strong will only have the potential to damage the sight in children up to the age of about 6 or 7. After that the only problem they will cause is blurred vision or perhaps some mild headache or eye strain. They will not damage the eye.

JCH MD