4.5 How about your eyesight?

The 4.5 we are talking about is the number in the international standard visual acuity chart, which represents which line you can see. This is a standard for testing.

02

We usually say myopia refers to the diopter of your eyes, which is the reciprocal of the focal length f of the refractive system.

03

However, at present, the actual intensity is not completely proportional to diopter, and there is no formula that can be converted. Just like people with myopia of 800 can only see 4.2 on the eye chart, while people with myopia of 300 can only see 4.0.

04

The degree of myopia can only be determined by computer optometry. Parents usually find that it is best to take their children's myopia to a professional institution for optometry, which can control the deepening of eye degree in time and avoid eye complications.

05

Here is a supplement to the eye complications: eye fatigue is caused by unclear vision, excessive eye adjustment and muscle tension. This will lead to eye swelling, eye pain, orbital pain, dizziness and nausea.

06

Macular hemorrhage and degeneration are caused by degenerative myopia, which will cause macular hemorrhage, atrophy and degeneration of retina and choroid, and seriously affect vision.

07

It may also cause strabismus. This is because when you look closely, there are less adjustment and more collection functions, resulting in an imbalance between adjustment and collection functions. The medial rectus muscle is in a state of excessive tension for a long time. After such a long time, the function of the medial rectus muscle will be insufficient, and the collection function of both eyes will be weakened accordingly, which will easily lead to exotropia or exotropia.

08

Retinal detachment, high myopia will cause this situation, because the axial length is elongated and the vitreous body is liquefied and denatured. Fibrous cords in the vitreous can adhere to and pull the retina. When the eyeball is hit or damaged by external force, it can cause retinal rupture and retinal detachment. Retinal detachment is a very dangerous complication, and blindness will occur if it is not treated in time.

The contents of sogou guide on this page are for reference only. Please operate carefully according to your actual situation. Especially for matters involving your interests or the interests of third parties, please consult professionals.

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Everyone is looking for it.

Vision 4.5 How many glasses do you wear?

How many degrees of myopia is vision 4.5?

Vision 4.5 can be used by troops.

0.3 4.5 What is vision?

How many degrees is naked eye vision 4.5 myopia?

Is naked eye vision 4.5 myopia?

How many degrees is the corrected vision 4.5?

The naked eye vision of 4.5 is several hundred degrees.

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0 1 4.5 is the number in the international standard visual acuity chart, which represents which line you can see. This is a test standard.

What we usually call myopia refers to the diopter of your eyes, which is the reciprocal of the focal length f of the refractive system.

However, at present, the actual intensity is not completely proportional to diopter, and there is no formula that can be converted. Just like people with myopia of 800 can only see 4.2 on the eye chart, while people with myopia of 300 can only see 4.0.

We need computer optometry to determine the degree of myopia. Parents usually find that it is best to take their children's myopia to a professional institution for optometry, which can control the deepening of eye degree in time and avoid eye complications.

Here is a supplement to the eye complications: eye fatigue is caused by unclear vision, excessive eye adjustment and continuous muscle tension. This will lead to eye swelling, eye pain, orbital pain, dizziness and nausea.

Macular hemorrhage and degeneration are caused by degenerative myopia, which will cause macular hemorrhage, atrophy and degeneration of retina and choroid, and seriously affect vision.

It may also cause strabismus. This is because you look closer and use less adjustment, but use more collection functions, resulting in imbalance between adjustment and collection functions. The medial rectus muscle is in a state of excessive tension for a long time. After such a long time, the function of medial rectus muscle will be insufficient, and the collection function of both eyes will be weakened accordingly, which will easily lead to exotropia or exotropia.

Retinal detachment and high myopia can cause such a situation, because the axial length of the eyeball is elongated, the vitreous body is liquefied and denatured, and the fibrous cords in the vitreous body can attach to the retina and pull the retina. When the eyeball is hit or damaged by external force, it can cause retinal rupture and retinal detachment. Retinal detachment is a very dangerous complication, which will lead to blindness if not treated in time.