My Mom's eye number are 0.5 (left eye) and 0.75 (right eye), both for far and near. She normally can read newspapers without wearing glasses but she needs to wear glasses to read printed materials with very small size for example books, but after wearing glasses 8 hours a day in job, she is not able to read big size printed materials including newspaper.
She always takes a break several times a day to do eye exercise but it seems that these are not so useful when some one is in 40 to 50s.
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