While you are glad that your presbyopia is quietly disappearing, perhaps diabetes has caught up with you. When blood sugar rises, the sugar content of the atrial fluid in the eye also creeps up, causing the lens to swell and creating a myopic effect. Therefore, when myopia occurs in people without myopia or in people who are already myopic the degree keeps changing. Before replacing glasses, you should check to rule out the possibility of diabetes. If it is caused by diabetes, the myopic effect can be eliminated or reduced after treatment, so it is better to wait for the condition to stabilize before fitting glasses. With the modern lifestyle, the incidence of diabetes is increasing year by year. As the duration of diabetes increases, the effect on the eyes also rises, of which, the incidence of retinopathy in diabetic patients is 21-36%, and its impact on vision is the greatest. Others can affect refraction, affect lens transparency and lead to cataracts, affect the innervated oculomotor nerve and lead to ptosis, or cause symptoms such as diplopia with paralytic strabismus. Diabetes can cause a variety of eye diseases, such as corneal ulcers, glaucoma, vitreous hemorrhage, and optic neuropathy. Therefore, it is most important to develop good lifestyle habits in general.