When should I wear myopia glasses? When should I take them off?

Myopia degree is below 300 degrees: wear it when looking far away, and take it off temporarily when using your eyes at close range (such as reading) at a distance of more than 30 cm.

Myopia degree is above 300 degrees: It is recommended to wear it all day to avoid accommodation fatigue caused by blurred vision.

For patients with high myopia (more than 600 degrees) or astigmatism: they need to continue wearing them to reduce the risk of retinal detachment.

1. Will wearing glasses accelerate myopia progression? Wrong!

Many parents find that their children's myopia increases after wearing glasses, so they blame the glasses. In fact, correctly fitted glasses will not cause the myopia to deepen. The real reason for the deepening of myopia is mostly related to the natural growth of the eye axis during the growth and development period of adolescents (the normal eye axis is about 24 mm, and the myopia degree increases by about 300 degrees for every 1 mm increase). If the vision is blurred for a long time, the eyes will continue to adjust to the environment, which will increase eye fatigue and accelerate the elongation of the eye axis. Therefore, scientific glasses can help to see clearly, reduce the burden on the eyes, and are an effective means to control the development of myopia.

2. Can you “exercise your vision” by not wearing glasses? Dangerous behavior, stop it!

There are risks in trying to "restore vision" by not wearing glasses. Long-term blurred vision can cause continuous spasm of the ciliary muscle, leading to visual fatigue, increased intraocular pressure, and even strabismus or amblyopia. Especially for children, if the development of the visual nerve is disturbed, it may cause irreversible vision damage. After confirming true myopia, wearing glasses with appropriate degrees in time is the right choice to protect vision.

3. Why does myopia still increase after wearing glasses? Beware of three major causes

1. Physiological growth: During the period of rapid height growth in adolescents, the axial length of the eye also grows synchronously. This process usually gradually stabilizes after the age of 18.

2. Overuse of eyes: Using electronic devices or reading at close range for a long time will cause long-term tension in the ciliary muscles, which can easily lead to pseudomyopia. If you don’t pay attention, pseudomyopia will gradually develop into true myopia, and the degree will become higher and higher.

3. Inappropriate glasses: Problems such as too high a prescription and deviation of the optical center of the lens will increase the burden on the eyes, and the prescription will naturally increase. It is recommended to check your vision every six months and adjust the lenses in time.

4. Wearing glasses will cause the eyeballs to bulge? Misunderstanding! The glasses are not to blame!

Bulging eyes are actually the result of worsening myopia and have nothing to do with glasses. As the eye axis lengthens, the shape of the eyeball changes from "spherical" to "elliptical", and people with high myopia have less orbital fat, which makes the eyeball more bulging visually. Choosing thin lenses or contact lenses can reduce the impact of lenses on the appearance of the eyes.

5. Scientific eye protection: technology and habits work together

1. Advanced optical technology

• Orthokeratology lenses (OK lenses): Wearing them at night can temporarily reshape the cornea, eliminating the need to wear lenses during the day and slowing down the growth of the eye axis. Use strictly according to doctor's orders.

• Defocus lenses: Through special design of the peripheral area, excessive elongation of the eye axis is suppressed.

• Functional frame glasses: such as progressive multifocal lenses, which can reduce the adjustment pressure when using the eyes at close range.

2. Daily eye protection rules

• 20-20-20 principle: every 20 minutes of using your eyes, look into the distance 6 meters away for 20 seconds. This is like doing exercises for your eyes, which can help them relax.

• Lighting management: Ensure uniform lighting when reading, with the desk lamp and background light combined, with an illumination of no less than 500 lux.

• Nutritional supplement: Eat more foods rich in lutein (spinach, corn), vitamin A (carrots, animal liver) and DHA (deep-sea fish).

• Regular check-ups: Monitor the axial length of the eye every 3 to 6 months for adolescents and examine the fundus every year for adults. Those with high myopia require more frequent follow-up.

Scientific fitting and proper wearing, combined with good eye habits and outdoor activities (two hours a day is appropriate), can effectively protect vision health.