Myopia 400 in the left eye and 300 in the right eye, astigmatism, how to protect your eyesight

Exercise more, play less on the computer, let your eyes touch the vista more, and make sure that you have time to rest.

1. Scientific eye.

1. Ensuring sufficient sleep time is an important factor in eliminating eye fatigue.

2. Pay attention to the correct posture when reading and writing, and do not read books or mobile phones when walking or riding in the car.

3. Don't use your eyes for a long time, and rest for 10 minutes every 50 minutes or so.

4. Eat less sweets, excessive sugar intake is acidic in the blood environment of the body, affects the toughness of the eye wall, promotes the elongation of the eye axis, and leads to the occurrence and development of myopia.

5. Avoid partial eating, which will lead to insufficient intake of vitamins, trace elements and macro elements, which will affect development.

2. Establish refractive development files and conduct regular testing.

Experts recommend that a comprehensive optometry examination and refractive development should be done annually from the age of 3 to 6 years. After the child is 3 years old, parents should take the child to a professional eye hospital for 1 or 2 comprehensive optometry examinations every year, including the refractive power, the length of the eye axis, and the curvature of the cornea, to see if the child belongs to the high-risk myopia group, and reasonably intervene in the occurrence and development of myopia through the detection over the years.

3. Increase the time spent outdoors.

Studies have shown that children who spend 3 hours a day outdoors have a myopia rate only; The myopia rate of children who spend 1 hour outdoors is 3; The myopia rate of children who spend only half an hour outdoors every day is 24. During outdoor activities, children's eyes and body exposure to sunlight can prompt the human body to secrete more dopamine, effectively inhibiting the growth of the eyeball, thereby inhibiting the occurrence and progression of myopia.

Hello! You have to wear it often, you are already a refractive error.

Does everyone need to wear glasses?

The answer is yes. For example, when a person is young, he or she has "emmetropia" (no myopia, farsightedness and astigmatism) and has normal vision, but in old age (over 45 or 50 years old), he or she needs to wear reading glasses when he or she sees near. If you are myopic when you are young, you need to wear myopic glasses, and when you are old, you may not need to wear reading glasses when you look near, this is because myopia is a lens (the symbol of the concave lens is negative, that is, "—" and presbyopia is a convex lens (the symbol of the convex lens is positive, that is, "+", the concave and convex lenses can cancel each other, for example, a person is 300 degrees of myopia when he is young, that is, he wears - lenses, and he should wear + reading glasses at the age of 60, and the myopia of - plus + presbyopia = 0, that is, positive and negative offset, This is the reason why some myopic eyes can not wear reading glasses when they reach old age.

Therefore, some people say that myopia does not flower when it is old, but in fact, from the anatomy and life of the human eye, everyone needs to be presbyopia, and myopia cannot be an exception. Although the myopic eye does not wear reading glasses when it is old, it needs to take off the myopia glasses to see closely. If he is hyperopic when he is young, he needs to wear farsighted glasses (convex lens, ten lenses), and when he is old, he wears reading glasses (also convex lenses) that need to be added to the farsighted glasses, for example, his farsighted eyes are 200 degrees when he was young, and his flowery eyes are 300 degrees when he is 60 years old, and his reading glasses should be 500 degrees (+ plus + reading glasses) when he is looking close.

This is the reason why it is often said that the farsighted eye is heavier than the average person when it is old. So there will always be a time in a person's life when they need to wear glasses.

Your eyesight is so serious, your left eye is 700 degrees...

You can dress up. There are differences in hospitals** from place to place, ranging from 3,000 to 6,000, and large hospitals in big cities may be 7,800.

Indications for surgery are:

1) Age: Generally over 18 years old.

2) Stability of diopter: The diopter has been relatively stable in the past 2 years, and the increase of diopter per year is not greater than the degree).

3) The range of diopters: myopia is best not more than -15 ood (1500 degrees) (the most aggressive PKK is not more than -6 00d); It is better to have astigmatism no more than 6 00 days (600 degrees).

4) Patients with anisometropia with inconsistent diopter degree in both eyes.

5) Best preoperative corrected visual acuity: low to moderate myopia not less than, high myopia not less than:.

6) Those who wear contact lenses: soft lenses should be stopped for 1-2 weeks, hard lenses should be stopped for 2-3 weeks (depending on the recovery of the visual membrane epithelium and corneal topography), and OK lenses should be stopped for 3-6 months.

7. Corneal thickness: greater than 450um.

8) Re-operation: LASIK: interval of 3-6 months, preferably more than 1 year; PRK: Preferably with an interval of more than 1 year; rk: Preferably with an interval of more than 2 years.

9) Patients with no active eye disease in eye examination.

10) Patients who have had perforated corneal transplantation for 1 year and have had their stitches removed for more than half a year, and have greater myopia and hand or astigmatism.

11) Psychological factors: the patient himself has a healthy psychological state.

12) The patient himself has a requirement to remove the glasses: he does not like to wear glasses or corneal contact lenses.