Myopia glasses are usually better replaced once a year, but patients should also decide on the replacement cycle based on the results of their optometry exam.
Myopia patients are recommended to have an optometry examination every six months and change glasses every year, because usually myopia patients who have a change in prescription will show a more obvious change in visual acuity when the cycle is about one year. In addition, when frames are used for a year, the lenses are also prone to wear and tear, resulting in a decrease in image quality.
However, the replacement cycle is not set in stone, and is flexible depending on the results of the patient’s optometry examination and the wear and tear of the lenses. If the patient’s myopia has increased a lot within six months, it is necessary to replace them in time. If the patient has more than one year, but the myopia is still stable, and the lenses are well maintained and not worn, it is possible to postpone the replacement of the lenses.