Specific have what symptom astigmatism
Parallel light rays pass through the eye after inflectional not form a focus, says the astigmatism.astigmatism irregular astigmatism and rules can be divided into two types of astigmatism.
symptoms
See far, see nearly all not very clear, close work for a long time that eyes bulge, headache, reading wandering or have double.Fundus examination, depending on the head oval, clarity, and bad edge up and down the edges of the fuzzy state on both sides and inconsistent.
Astigmatism irregular astigmatism and rules can be divided into two types of astigmatism.Irregular astigmatism, is because the corneal surface caused by uneven refractive volley phenomenon.
Rules astigmatism is refers to the cornea perpendicular two main diameter line is not consistent with the refractive QuGuangLi, the light cannot form focus in focus and line.According to the size of the dif…ferences between the refractive status line, rules and points five categories: astigmatism
1. Simple farsightedness astigmatism a Lord for face, with its diameter line in the vertical line is farsightedness diameter.
2. Pure sex myopia diameter line is a Lord astigmatism face, their corresponding vertical diameter line is for myopia.
3. Two hyperopia astigmatism resilience mutually perpendicular lines are both Lord diameter hyperopia, but has a difference degree.
4. Resilience myopic astigmatism two mutually perpendicular lines are myopic Lord size, but there are differences degree.
5. Mixed astigmatism two mutually vertical line for the size, and the other a far-sighted for myopia.
treatment
Regular sex with suitable for astigmatism after the degree of cylindrical lens or joint cylindrical spherical surface lens to correct them.The rules can wear corneal astigmatism sexual contact lens to correct them.
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