Refractive errors should include:

Written by Zheng Xin

Ophthalmology

Updated on September 12, 2024

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Refractive errors include myopia, hyperopia, astigmatism, and anisometropia. Myopia can be divided into refractive myopia and axial myopia. Hyperopia can also be categorized based on the state of accommodation into manifest hyperopia, latent hyperopia, and total hyperopia. Astigmatism is divided into simple hyperopic astigmatism, simple myopic astigmatism, compound myopic astigmatism, compound hyperopic astigmatism, and mixed astigmatism.

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Written by Wang Fang

Ophthalmology

1min

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Refractive amblyopia can be cured

Refractive amblyopia, most cases can be cured. Most refractive amblyopia is associated with hyperopia, accompanied by amblyopia, caused by abnormal fetal development in the womb, and the specific cause is unknown. If amblyopia in children can be detected between the ages of three to five and treated in a timely manner, most cases can be cured with a good prognosis. Treatment before the age of eight has better outcomes; treatment between 8-12 years old is less effective; there is no way to treat after age 12. The principle of treating amblyopic children is based on medical optometric prescription combined with effective amblyopia training, which primarily includes threading beads, puzzles, or using amblyopia treatment devices, etc. After amblyopia is cured, follow-up is required for three years to prevent recurrence.

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Written by Deng Jiang Tao

Ophthalmology

36sec

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How is refractive error treated?

Refractive errors come in several types, commonly including myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Generally, these are the four main categories. Regardless of the type, the treatment methods for refractive errors typically involve the following: one method is wearing frame glasses to improve or maintain good vision. Another method is using contact lenses to achieve good vision. Lastly, corrective surgery, such as LASIK, can be performed to correct the vision permanently. These are the three basic approaches.

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Written by Peng Xi Feng

Ophthalmology

33sec

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What is the difference between refractive error and nearsightedness?

Myopia is a type of refractive error, which refers to the condition where, when the eye is not adjusting, parallel light rays after passing through the refractive action of the eye, do not form a clear image on the retina, but rather image in front of or behind the retina. This includes hyperopia, myopia, and astigmatism. When parallel light rays image in front of the retina after passing through the eye's refractive action, it is called myopia.

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Written by Wang Fang

Ophthalmology

1min 14sec

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Do you need to wear glasses for refractive errors?

First, it should be clarified that true refractive errors must be corrected with glasses. Refractive errors in clinical practice are divided into pseudo-refractive errors and true refractive errors. Pseudo-refractive errors generally occur in preschool children and children in the early years of school. When a decline in vision occurs, parents should take their children to the hospital for a medical optometry examination. After pupil dilation, a comprehensive optometry examination can determine whether the child has a pseudo-refractive error or a true refractive error. If it is a pseudo-refractive error, it can be improved through more rest, more outdoor activities, and various physiotherapy methods to alleviate visual fatigue, thereby improving vision. However, once it is diagnosed as a true refractive error, appropriate strength glasses should be promptly prescribed for the child to correct the vision. Because if true refractive errors are not corrected, visual fatigue will persist and continue to worsen, which will cause the child's prescription to continuously increase.

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Written by Zheng Xin

Ophthalmology

39sec

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How to correct refractive errors

Refractive errors include myopia, hyperopia, astigmatism, and anisometropia. The correction of myopia can be achieved using appropriate concave lenses, while hyperopia requires suitable convex lenses for correction. The correction of astigmatism depends on the degree and axis differences, so it is necessary to use lenses with the appropriate degree and axis for correction. Anisometropia, due to the significant difference in the degree between the two eyes, requires consideration of the sufficient degree and the correction of the magnification rate of the retinal image during correction.