Difference between revisions of Talk:Active Focus
No edit summary |
No edit summary |
||
| Line 9: | Line 9: | ||
==Excessive sharpness== | ==Excessive sharpness== | ||
"excessive sharpness is the stimulus that increases the axial length of the eye"... that's a new one. Do we know what that means, and is there evidence that it causes elongation ? [[User:Divenal|Divenal]] ([[User talk:Divenal|talk]]) 16:49, 10 June 2020 (UTC) | "excessive sharpness is the stimulus that increases the axial length of the eye"... that's a new one. Do we know what that means, and is there evidence that it causes elongation ? [[User:Divenal|Divenal]] ([[User talk:Divenal|talk]]) 16:49, 10 June 2020 (UTC) | ||
==Accommodation== | |||
"As accommodation is an automatic activity, active focusing is not straight forward. While it is easy to move the skeletal muscles of your body, it is not possible to control the ciliary muscles in the same way. However, by careful manipulation of the blur horizon, it is possible to encourage the eyes to push slightly harder to achieve focus." Is this stuff relevant ? Accommodation (by the usual definition) is about increasing focusing power to focus on nearer objects. AF is about trying resolve myopic blur, which means (somehow) reducing focusing power. (There are some heretical discussions on the forum about possible links, but ...) [[User:Divenal|Divenal]] ([[User talk:Divenal|talk]]) 11:33, 11 June 2020 (UTC) | |||