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Many individuals shall wear their prescribed lenses for long period of time and proceed to change the lenses when it is broken or unusable. In actual fact, deterioration caused by myopia will be accelerated if the prescribed lenses are used extensively for a long period time. Prescription spectacle lenses should be prescribed based on individual conditions, once there is a change in refractive power; it is about time to change the prescription lenses.
Myopia prescription lenses worn by adult patients should generally be replaced every two years
There are two purposes for changing lenses: firstly for myopia (also known as short-sightedness) degree adjustment reasons, secondly is for replacement purposes.
Once there are scratches on the optical lenses, optical correction performance can be severely affected, so regular maintenance and inspection on glasses along with timely replacements are recommended to ensure optimal condition.
Youth users are advised to proceed with lenses replacements every 6 months or a year.
Eye usage is at its peak during youth ages hence fluctuations of myopia degrees are particularly fast. Due to long term use of eyes viewing items up close, occurrences of ciliary muscle spasm will present and thus contributing to the increase of myopia degree levels. Medical optometry checkups are necessary for youths who use their vision power excessively on a half-yearly basis, and eyeglasses have to be promptly changed if the lenses in used are not supporting current myopia levels.
Reading glasses used by senior citizens should be regularly changed too.
Presbyopia is caused due to the aging of crystalline lens which occurs along with the increase of human aging. Hence corrective levels on such corrective lenses are needed to be incrementally adjusted in order to meet the needs of an elderly individual’s daily life. There is no unified requirement on the specific replacement time for such lenses however replacements are needed once an elderly individual experience difficulty in reading or eye soreness. It has to be noted that skimping on cost and making decisions based on convenience sake while seeking reading glass replacements may cause harm to the wearer and symptoms such as migraine, nausea, dizziness, general discomfort etc.
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