This issue varies from person to person. Generally speaking, as adults age and spend less time using their eyes for long periods of time, their vision will stabilize and their glasses will no longer increase. But some diseases can also contribute to myopia deepening, worthy of attention. (1) Visual fatigue: The increasing number of people suffering from “visual fatigue” is a manifestation of modern lifestyle changes. When prolonged close reading, reading too small text, computer operation for too long are excessive use of eye regulation, can cause eye swelling, dryness, blurred vision, heavy eyelids and other visual fatigue symptoms, and in severe cases, headache, orbital pain, and even nausea, vomiting. So how does visual fatigue cause myopia or make myopia deepen? As we all know, the formation of myopia – near eye and high intensity eye use, resulting in eye fatigue – ciliary muscle spasm, the ciliary muscle contraction time is too long, so that the eyes are in a long-term fatigue myopia pathology – -Adjusted myopia is pseudomyopia. If not treated early, myopia can become true myopia, so it must be taken seriously. This is why many middle-aged customers tell us that when they were young, they could see clearly with only 50 degrees of optometry, not that your vision has recovered, but that you have been working at close distances for a long time, causing visual fatigue and thus pseudomyopia. In addition, unsuitable glasses will also add importance to fatigue and myopia. Therefore, once you find that your existing glasses cannot meet your vision requirements, you should go to a regular optician or eye hospital for a timely checkup, replace your suitable glasses, and review them regularly. However, it should be emphasized that myopia is not the higher the prescription of glasses, the clearer the prescription is, accurate optometry is a prerequisite, the prescription must remove the regulatory myopia part, both eyes corrected visual acuity to 1.0 can be. I suffered two losses in the store are in the customer adjustment instability led to large fluctuations in the degree, meet such customers to pay more attention, to communicate with customers, the best rest and then come to the optometry, to reduce the error due to fatigue over-adjustment factors. Otherwise, you can only bear the consequences of changing the film. (2) pathological myopia: pathological myopia is a kind of high myopia, the harm to visual function is more serious. Pathological myopia is mainly caused by genetic factors, so even though some people are not engaged in close vision work, it can still develop and serious complications such as retinal degeneration, retinal detachment and macular hemorrhage can occur. As long as regular and detailed fundus examinations are conducted, retinal peripheral degenerative fissures are detected as early as possible and retinal photocoagulation is performed in time, the occurrence of retinal detachment can be avoided and the visual function is well protected. If retinal detachment occurs, surgical treatment is needed. If macular hemorrhage occurs, fundus fluorescence angiography and OCT examination are needed for further diagnosis and treatment. (3) Diabetes: Can diabetes cause myopia? When the blood glucose level in the blood of diabetic patients increases – the sugar level in the eye should also increase – the osmotic pressure of the atrial fluid in the eye decreases – edema of the lens occurs — Refractive power increases, producing myopia symptoms. Diabetic patients may experience sudden onset of myopia, or a reduction in pre-existing presbyopic symptoms. The degree of myopia due to diabetes is often unstable. When diabetes is effectively treated and blood sugar is controlled at normal levels for a period of time, the myopic symptoms will gradually decrease to disappear, so the patient can return to orthokeratology or need to wear presbyopic glasses again when reading. (4) Cataract: Cataract is the gradual turning of the crystal body of the originally transparent eye into yellow-brown color – the refractive index increases due to the increase of crystal body density – the refractive power of the crystal increases, the myopia increases, and the vision becomes worse and worse. Myopic friends may also have increased myopia during the formation of senile cataracts, while friends without myopia do not need presbyopic glasses to read because of senile cataracts, and the degree of presbyopia is improved, as if they are rejuvenated, some people jokingly call this phenomenon “the second spring of vision”. For those who have high myopia, if you find that your glasses suddenly deepen at the age of 50, it is likely to be a manifestation of cataract, and you must seek medical attention as soon as possible. (5) Glaucoma: The “atrial water” circulation is blocked – the pressure inside the eye is increased. If effective treatment is not taken, high eye pressure will compress the optic nerve, leading to gradual atrophy of the optic nerve and gradual loss of visual field leading to blindness.