How can you tell if you are nearsighted? How can you tell if you are nearsighted?

There are several symptoms of myopia, and if you notice symptoms such as blurred vision in the distance and squinting when looking at things, you may be nearsighted.

Manifestations of myopia:

1. Squint. When distant targets cannot be seen clearly, squinting is often used to compensate, because the eyelids can block part of the pupil when squinting, reducing diffuse light and reducing the impact of astigmatism, thereby temporarily increasing and improving visual acuity.

2. Blink. Frequent blinking can be programmed to alleviate myopia and increase visual clarity. Many people will see things more clearly when they are in tears.

3. Tilt your head. It often happens that tilting the head to watch TV, also because when tilting the head, it can reduce the interference and influence of some diffuse light, and some children will even develop the habit of tilting their head.

4. Error. The target in the distance is not clear, and I don't say hello when I see acquaintances. I make mistakes during exams, I can trip over or hurt myself when I move in the dark, and some of them have a decline in academic performance, and I often have to borrow other people's notes to copy, etc.

The main manifestation of myopia is that it is clear when looking at near distance, and it is clearer to see small characters, but it will be blurry when looking at a distance, and the cause of myopia should be considered first. It should be judged according to the age of the patient, and if it is an adult with this condition, it is enough to go to the hospital for a simple computerized optometry. If it is a child less than 12 years old, after doing computerized refraction, you need to do dilated eye refraction, and use compound tropicamide eye drops to dilate the pupils to see whether the child is true myopia or pseudomyopia.

Patients with myopia should pay attention to looking less at mobile phones and computers, reduce the time and frequency of near eye use, and use their eyes at close range for about 30 minutes to see and rest. Usually pay attention not to stay up late at night and strengthen outdoor activities. Myopia is mainly glasses, and patients over the age of 18 can consider laser surgery for myopia if they need to take off the lenses.

Some patients will choose liquid orthokeratology lenses, which depends on the patient's age, and the final choice is made according to the condition and the degree of myopia.

In the relaxed state of accommodation, parallel light rays are refracted by the refractive system of the eye and converge in front of the retina. Among them, axial myopia is more than -6d is called high myopia, and those with various degenerative and degenerative changes in the fundus of high myopia are called pathological myopia, and the axial elongation and thinning of the eyeball wall, especially the posterior sclera, are the basis for axial myopia to develop into high myopia.

To identify true and false myopia, in addition to going to the hospital for optometry, the simple way is to hang an international standard eye chart at a distance of 5 meters, first determine the visual acuity, and then wear 300 degree reading glasses, look into the distance, the cloud-like scene will slowly appear in front of you, take off the glasses after half an hour, and then check the eyesight, if the vision is enhanced, it can be considered as pseudomyopia; If your vision is still declining or declining, you can do it once a day for three consecutive days, and if your vision still does not improve, you can determine that you are truly myopia.