Can myopia be controlled while sleeping? Are the "myopia magic tool" OK glasses really OK?

“Can orthokeratology lenses really delay the progression of myopia in children?”

“Wearing OK lenses for 8 hours every night can restore vision?

The principle of OK lenses

OK lenses, also known as orthokeratology lenses, originated in the United States. After more than 50 years of development, they have been used in many countries around the world.

It is a specially designed hard contact lens with a reverse geometric design that is flat in the center and steep around the periphery. Its unique reverse curved surface design changes the corneal curvature and shape during sleep, so that during the day, there is no need for additional optical correction and clear naked eye vision.

Features of OK lenses

(1) Prevent myopia from getting worse;

(2) It has a certain effect in reducing the refractive power of myopia, which can reduce or eliminate the need to wear glasses or contact lenses;

(3) Easy to operate and use. Wear at night and take off in the morning, no need to wear glasses during the day. It can meet various needs such as study, sports, work, etc.

(4) Other eye functions are not affected;

(5) Reshape corneal geometry and inhibit the rapid growth of the eye axis.

Which children are suitable for wearing OK lenses?

(1) Meet the age requirement, 8 years old or above;

(2) Myopia is between 100° and 600°, and astigmatism does not exceed 300 degrees;

(2) Children develop myopia at an early age and have poor naked eye vision, so the threshold for glasses can be relaxed to 75°;

If there are active eye diseases, uncured corneal inflammation or keratoconus, severe incomplete eyelid closure, etc., you cannot wear OK lenses. In addition, if the child's dry eyes are more serious, special attention should be paid to fitting OK lenses!

How to wear OK lenses?

Preparation before wearing glasses:

Pay attention to the cleaning and care of orthokeratology lenses and improve eye protection awareness. Before taking off or wearing glasses, you must cut your nails short and wash your hands with hand sanitizer and rinse them clean.

Method 1

1. Place the concave surface of the lens on the tip of your right index finger and drop a drop of eye drops on the concave surface of the lens;

2. The wearer looks straight ahead with both eyes, uses the middle finger of the left hand to pull open the upper eyelid and fix it on the eyebrow arch, and uses the middle finger of the right hand to pull open the lower eyelid;

3. Gently place the lens in the center of the cornea. After the lens is in the eye, gently turn the eye to make the lens and cornea stick together. First loosen the lower eyelid, then slowly loosen the upper eyelid;

4. Blink gently and look in the mirror to make sure the lens is on your cornea.

Note: When inserting the lens, please do not press hard on the eyeball or touch the eye or lens with your fingernails.

Method 2

1. Use the index finger and thumb of the hand opposite to the one wearing the glasses to open the eyelids, with the fingers positioned as close to the eyelid margin as possible.

2. Place the lens on the tip of the index finger of your other hand and gently wear the lens on the center of the cornea.

3. After the lens is placed in the eye, gently rotate the eye to make the lens stick to the cornea. First loosen the lower eyelid, and then slowly loosen the upper eyelid.

4. Blink gently and look in the mirror to make sure the lens is worn on the cornea. You can use a light source to illuminate the lens from the side of the eye to check the fit.

Will wearing OK glasses affect my sleep?

Children who wear OK lenses for the first time may feel a foreign body sensation, but they can usually adapt in about 15 minutes and it will not affect their normal sleep.

The best time to wear OK glasses is 8-10 hours, preferably not more than 12 hours. After wearing glasses, parents are advised to take their children to the hospital for regular checkups, such as vision and eye conditions.