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My eyeglass prescription keeps changing 6 months or 1 year. Why?

If the prescription changes every six months by 0.25 D, it basically is just a fluctuation which is acceptable. However, if the prescription changes very frequently & the increments are higher then maybe there is some pathological cause for the same which is manifesting in form of rapid prescription changes hence it is suggested to consult an ophthalmologist.


• If this happens with kids especially tweens and teens who are in their growth years, it is because of the overall general body growth (more of chances with myopes) in which all parts the body including the eyes grow leading to frequent changes. Regular Eye check-up on 6 months to 1 year basis is the best way to address this.


• If your age is in the 40s, your number will change every year or two because of deteriorating accommodative power for near. This natural occurring condition due to aging is called presbyopia. Only way to correct this is condition is by near spectacle glasses or contact lenses.


• Elderly people who have cataract (clouding of the eye’s natural lens) also face eyeglass prescription changes but these are gradual changes.


• In diabetics, uncontrolled sugar levels and frequent changes in sugar levels too can impact vision and lead to fluctuations. Hence it is recommended to check whether the person suffers from diabetes or any other systemic disease or is on any medication that can impact vision.


• It is suggested to get eye check-up done every year. However, any sudden change in vision or frequent prescription changes warrants a visit to the Ophthalmologist.

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