Definition: The word 'cspan' is a Latin-based term used to refer to various forms of visual acuity testing, such as cataract surgery. The word can be traced back to the Greek κατασπάνιον (cataspānion) meaning 'to cut out,' hence the name 'cspan' that denotes different types of cataract surgeries. It is an important part of visual testing and evaluation, especially for people with age-related macular degeneration or nearsightedness. <0x0A><0x0A>In brief, the word 'cspan' means to cut out with a knife in the field of vision.
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