The degree is not high but the naked eye vision is poor

There is such a group of people. Their naked eye vision is very poor, but their myopia is not serious. It sounds strange, but there is actually a reason for it. First of all, there is no linear relationship between naked eye visual acuity and myopia degree. This kind of naked vision difference to not too high myopia is also normal. Secondly, poor naked eye vision is also related to the flash degree of the eyes. Moreover, sometimes the naked parallax is short-term. That's because of excessive eye fatigue. Let me give you a detailed introduction below.

1. Poor vision may be caused by some visual fatigue.

Guidance:

It is recommended that you pay attention to eye hygiene, that is, use your eyes less, play less with mobile phones and computers, watch less TV, pay attention to rest, ensure sleep, protect your eyes, and go for a check-up of your eyes after a month to see if it feels better.

Second, it is considered that severe visual fatigue has caused a decline in visual function.

Guidance:

Pay attention to eye hygiene, play less computer and mobile phone, rest early, pay attention to proper outdoor exercise, and you can use some eye patches to eliminate eye fatigue.

3. Naked eye vision is not proportional to the degree of myopia. Therefore, if the degree of myopia is not high, the naked eye vision is very poor.

Guidance:

Naked eye vision cannot be converted into myopia degree. The degree of myopia can only be clearly diagnosed after an eye test. Patients with very poor naked eye vision may have mild myopia or moderate myopia.

4. To know how high the prevalence of myopia is among teenagers, just look at the “guys wearing glasses” all over the streets. With the popularization of science, most parents have a deeper understanding of myopia, but the rapid increase in children's myopia is still worrying, especially for children aged 9-11, whose eye axis grows the fastest. Is there any way to control the growth of myopia? "The worsening of myopia is like a balloon that gets bigger and bigger. The higher the degree, the longer the eye axis and the thinner the eye wall, which can easily cause a series of problems such as changes inside the eye." Yang Xiao, associate professor and deputy director of the refractive department of Zhongshan Eye Center of Sun Yat-sen University, pointed out the possible harm caused by myopia. The following pathological changes can even lead to blindness when severe.

What can we do to prevent our eyes from becoming highly myopic (over 600 degrees) or even pathological myopia? Four methods to effectively control the progression of myopia. Professor Yang Xiao pointed out that myopia is caused by multiple factors, including heredity, physique, nutrition, light, nearsightedness, etc., which can be attributed to two major factors: heredity and environment. The combined application of the following methods can control the progression of myopia: 1. Outdoor activities and scientific use of eyes: natural therapy, that is, increasing the time of outdoor exposure. Research from Zhongshan Eye Center shows that increasing outdoor activities by 40 minutes a day can reduce the incidence of myopia. Reading indoors has an even greater impact on myopia than watching TV. 2. Orthokeratology lenses (OK lenses): They are specially designed high oxygen permeable contact lenses that can change the shape of the corneal surface, reduce myopia and astigmatism, and can be used as a medical device.

OK lenses can change the shape of the corneal surface and reduce myopia and astigmatism. See watermark for image source 3. Optical lenses: soft multifocal myopia control lenses (not registered in my country) and peripheral defocus frame glasses are effective for some younger children whose parents have a history of myopia. 4. Medication: Studies have shown that certain drugs that relax the ciliary muscles of the eyes, such as atropine eye drops, are effective in preventing myopia. However, the drugs have certain side effects, and the concentration, number of uses, and adverse reactions of the drugs must be well controlled. Therefore, they have not been widely used. Safe use of OK lenses can best control myopia. Among the above methods, OK lenses have been proven to slow the progression of myopia by 40%-60%. After treatment, patients can also improve their naked eye vision, so more and more parents hope that their children can slow down the increase in myopia through this method. To know whether you are suitable for this treatment, you should first communicate fully with your doctor, then conduct a pre-wearing examination (slit lamp, fundus, intraocular pressure, corneal topography, axial length, etc.), try on the lenses to determine the parameters, and finally customize the lenses. Generally speaking, OK lenses are suitable for myopic patients with a myopia degree of less than 600 degrees and patients with regular astigmatism with an astigmatism degree of less than 200 degrees. They are also required to be over 8 years old and willing to wear them, and their corneal shape and thickness must meet the requirements.