Talk:Amplitude of accommodation
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Misleading definition
[edit]i think there is something wrong in the article. The Amplitude of Accommodation, also known as the accommodative response, is the maximum increase in diopter power obtainable by an eye.
- Yes, I agree the current definition is somewhat misleading. The Amplitude of Accommodation is the range between a fully relaxed eye (longest focus) and a maximally "focused" eye (shortest focus), in diopters. A person may have sufficient accomodation, and still have trouble with near distance (Theoretically the lens could be focused "beyond infinity", due to some rare, extreme farsighted condition that doesn't impact accomodation.) Turidoth 20:45, 22 August 2007 (UTC)
The examples in the first paragraph don't work out with any of the example formulas. For example, the 45 year old can focus at 50cm, which is 1/0.5m = 2 diopters.
18.5 - (0.30 * patient age in years) = 5 diopters = 20cm
15 - (0.25 * age in years) = 3.75 diopters = 27cm
25 - (0.40 * age in years) = 7 diopters = 14cm
Avidiax (talk) 22:03, 19 December 2012 (UTC)
Who is the Hofstetter who gave these estimates? The Hofstetter surname list in Wikipedia does not appear to list anyone likely to be this person.