What is the difference between pseudomyopia and true myopia?

Myopia is something that many young people suffer from. If a person is myopic, he will not be able to see things. So what degree is pseudomyopia usually? What are the differences between pseudomyopia and true myopia?

What is the degree of pseudomyopia?

There is no direct relationship between pseudomyopia and degree. It is determined by the degree of eye fatigue. Pseudomyopia is caused by the spasm of the refractive system due to excessive use of the eyes. However, generally within 150 degrees, it may be pseudomyopia. It is mostly caused by excessive use of the eyes in a short period of time and can be detected by mydriasis optometry. It can be recovered by paying attention to eye hygiene, avoiding eye fatigue, paying attention to diet, etc.

It is difficult to determine the degree from the description. Generally, pseudomyopia is caused by visual fatigue and can return to normal after rest. If the vision is persistently poor, it may be true myopia and you need to go to the hospital for an eye test and glasses fitting. Pay attention to rest and avoid visual fatigue.

The difference between pseudomyopia and true myopia

1. Pseudomyopia: Farsightedness vision is less than 1.0, which can be corrected to 1.0 with negative spherical lenses. However, after using ciliary muscle paralysers (atropine, homatocrystalline) or fogging, myopia disappears and becomes emmetropia or hyperopia. This type of myopia is mainly caused by accommodative tension, so the myopia disappears after the accommodation is relaxed. It is usually seen in younger patients with a shorter onset time and lower refractive power.

2. True myopia: refers to the myopia state in which the myopia refractive power remains unchanged after using ciliary muscle paralyzing drugs to blur the vision. This type of myopia is mainly due to organic factors and caused by elongation of the eye axis, and has no obvious relationship with accommodation. It is usually seen in people who are older, have been ill for a long time, and have higher refractive power.

3. Intermediate myopia (or semi-true myopia): refers to the myopia condition in which the myopia refractive power is reduced but not completely eliminated after using ciliary muscle paralyzed drugs or fog vision. This type of myopia has both regulatory factors and organic factors. The reduced refractive power after regulatory relaxation is the result of joint tension, while the remaining refractive power is the result of organic factors.

This is the end of the introduction to the issues related to pseudomyopia. Have you learned more?