Astigmatism: meaning, definitions and examples

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astigmatism

 

[ รฆstษ™ษกหˆmรฆtษชzษ™m ]

Noun
Context #1 | Noun

eye condition

Astigmatism is a common vision condition caused by an irregular shape of the cornea or lens in the eye. This shape prevents light from focusing properly on the retina, leading to blurred or distorted vision. It can occur in combination with other vision problems such as nearsightedness or farsightedness. People with astigmatism may experience difficulties with contrast and may notice headaches or eye strain. Regular eye examinations can help diagnose and manage astigmatism effectively.

Synonyms

blurred vision, distorted vision

Examples of usage

  • She has astigmatism and needs glasses to see clearly.
  • Astigmatism can often be corrected with prescription lenses.
  • Many people are unaware they have astigmatism until they get an eye exam.

Translations

Translations of the word "astigmatism" in other languages:

๐Ÿ‡ต๐Ÿ‡น astigmatismo

๐Ÿ‡ฎ๐Ÿ‡ณ เค…เคธเคพเคฎเคพเคจเฅเคฏเคคเคพ

๐Ÿ‡ฉ๐Ÿ‡ช Astigmatismus

๐Ÿ‡ฎ๐Ÿ‡ฉ astigmatisme

๐Ÿ‡บ๐Ÿ‡ฆ ะฐัั‚ะธะณะผะฐั‚ะธะทะผ

๐Ÿ‡ต๐Ÿ‡ฑ astygmatyzm

๐Ÿ‡ฏ๐Ÿ‡ต ไนฑ่ฆ–

๐Ÿ‡ซ๐Ÿ‡ท astigmatisme

๐Ÿ‡ช๐Ÿ‡ธ astigmatismo

๐Ÿ‡น๐Ÿ‡ท astigmatizma

๐Ÿ‡ฐ๐Ÿ‡ท ๋‚œ์‹œ

๐Ÿ‡ธ๐Ÿ‡ฆ ุงุณุชุฌู…ุงุชูŠุฒู…

๐Ÿ‡จ๐Ÿ‡ฟ astigmatismus

๐Ÿ‡ธ๐Ÿ‡ฐ astigmatizmus

๐Ÿ‡จ๐Ÿ‡ณ ๆ•ฃๅ…‰

๐Ÿ‡ธ๐Ÿ‡ฎ astigmatizem

๐Ÿ‡ฎ๐Ÿ‡ธ astigmatisma

๐Ÿ‡ฐ๐Ÿ‡ฟ ะฐัั‚ะธะณะผะฐั‚ะธะทะผ

๐Ÿ‡ฌ๐Ÿ‡ช แƒแƒกแƒ—แƒ˜แƒ’แƒ›แƒแƒขแƒ˜แƒ–แƒ›แƒ˜

๐Ÿ‡ฆ๐Ÿ‡ฟ astigmatizm

๐Ÿ‡ฒ๐Ÿ‡ฝ astigmatismo

Etymology

The term 'astigmatism' originates from the Greek words 'a-' meaning 'without', and 'stigma' meaning 'a point' or 'mark'. It was first used in the 17th century to describe a condition where light rays converge at different points, leading to distorted or blurred images. The concept of astigmatism became more widely known in the early 19th century through advancements in optics and understanding of the eye's anatomy. As medical knowledge progressed, the understanding and classification of different types of astigmatism evolved, leading to improved diagnostic techniques and corrective measures. Today, astigmatism is recognized as a prevalent refractive error in vision that can be easily diagnosed and treated.

Word Frequency Rank

Positioned at #24,318, this word is part of extensive vocabulary. It's relatively rare in general usage but may be important in specific fields or formal writing.