A 59-year-old female asked:
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my contact lens prescription has changed twice in 9 mos. because my close up reading vision has improved. is this unusual for someone who is 59?

2 doctor answers
Dr. Andrea Kossler
14 years experience Ophthalmology
Cataracts: See your eye doctor for exam. You may have a progressing cataract which is causing the rx change. This is called "second sight" as the cataract grows it causes temporary myopia (nearsightedness) due to a change in your refraction (bending of light rays on the lens to focus on the retina). As the cataract progresses the vision will eventually worsen. Your eye doctor can evaluate ; discuss treatment.
Answered on Mar 15, 2014
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Dr. Jon Fishburn
29 years experience Ophthalmology
No: Your eyes may be changing as a result of nuclear sclerosis, which is hardening of your lens of your eye creating more nearsightedness. Your prescription would be changing as a consequence. Furthermore, the elasticity of the eye does change very gradually over time. Your eye doctor can help you with this and adjust as necessary. Btw, glaucoma treatments sometimes accelerate cataract formation too.
Answered on Mar 15, 2014
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