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Types and Treatment of Astigmatism by Claudia Serban is a document available to read on EtoBox.
Astigmatism is a refractive error where refraction varies in different meridians, causing images to focus on different points on the retina. Most astigmatic corneas have two curves of different steepness. Around 60% of refractive errors involve astigmatism. Astigmatism can be classified as regular or irregular, and as mild, moderate, severe or extreme depending on the degree. Regular astigmatism results from the cornea, lens or retina and comes in different types like with-the-rule or against-the-rule. Irre
- Author
- Claudia Serban
- Language
- EN