Distance vision - Revision history

Angel: /* See Also */

2022-03-01T17:19:02Z

Shaerah at 22:44, 8 September 2021

2021-09-08T22:44:20Z

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	=See Also=		=See Also=
	[[20-20-20 Rule]]		* [[3 hour rule]]
			* [[20-20-20 Rule]]

	[[Category:Articles]]		[[Category:Articles]]

Viceroy Sam: added Category:Articles using HotCat

2020-06-08T14:20:23Z

added Category:Articles using HotCat

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	=See Also=		=See Also=
	[[20-20-20 Rule]]		[[20-20-20 Rule]]

			[[Category:Articles]]

Divenal: wikify some random words

2020-06-01T10:52:31Z

wikify some random words

← Older revision		Revision as of 10:52, 1 June 2020
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	'''Distance vision''' is, for practical purposes, anything over 6 meters or 20 feet. Because the difference in lens power from 6m to infinity is less than 0.2 [[Diopters]], the limiting factor is less about ability to focus than simply the resolution of the retina (the number of the [[rods and cones]] in the back of your eye).		'''Distance vision''' is, for practical purposes, anything over 6 meters or 20 feet. Because the difference in lens power from 6m to infinity is less than 0.2 [[Diopters]], the limiting factor is less about ability to focus than simply the resolution of the retina (the number of the [[rods and cones]] in the back of your eye).

	As far as the [[ciliary muscle]] is concerned, your edge of blur is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the visual cortex notices the discrepancy between focus and convergence.		As far as the [[ciliary muscle]] is concerned, your [[Blur Horizon\|edge of blur]] is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the [[visual cortex]] notices the discrepancy between focus and [[convergence]].

	In the EndMyopia system, we use [[normalized]] glasses for outdoor work, for reading street signs, for looking out windows, and other distance vision tasks.		In the EndMyopia system, we use [[normalized]] glasses for outdoor work, for reading street signs, for looking out windows, and other distance vision tasks.

Divenal: D -> Diopters

2020-06-01T09:14:06Z

D -> Diopters

← Older revision		Revision as of 09:14, 1 June 2020
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	'''Distance vision''' is, for practical purposes, anything over 6 meters or 20 feet. Because the difference in lens power from 6m to infinity is less than 0.2D, the limiting factor is less about ability to focus than simply the resolution of the retina (the number of the [[rods and cones]] in the back of your eye).		'''Distance vision''' is, for practical purposes, anything over 6 meters or 20 feet. Because the difference in lens power from 6m to infinity is less than 0.2 [[Diopters]], the limiting factor is less about ability to focus than simply the resolution of the retina (the number of the [[rods and cones]] in the back of your eye).

	As far as the [[ciliary muscle]] is concerned, your edge of blur is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the visual cortex notices the discrepancy between focus and convergence.		As far as the [[ciliary muscle]] is concerned, your edge of blur is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the visual cortex notices the discrepancy between focus and convergence.

Divenal: reworded the first paragraph. I was a bit confused about what it was trying to say. I hope I haven't lost some detail that I hadn't picked up on.

2020-06-01T08:59:17Z

reworded the first paragraph. I was a bit confused about what it was trying to say. I hope I haven't lost some detail that I hadn't picked up on.

← Older revision		Revision as of 08:59, 1 June 2020
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	~~Your eye can focus on one distance at a time through [[accommodation]]. Standard [[full prescriptions]] have a minimum power of 0.25D~~, ~~which would compensate~~ for ~~an [[edge of blur]] at 4 meters.~~ 6 meters or 20 feet is ~~considered as far as you possibly need~~ to ~~measure vision. Beyond that~~ the number of the [[rods and cones]] in the back of your eye ~~is a bigger limiting factor on vision than any tiny additional refraction bonus you could get~~.		'''Distance vision''' is, for practical purposes, anything over 6 meters or 20 feet. Because the difference in lens power from 6m to infinity is less than 0.2D, the limiting factor is less about ability to focus than simply the resolution of the retina (the number of the [[rods and cones]] in the back of your eye).

	As far as the [[ciliary muscle]] is concerned, your edge of blur is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the visual cortex notices the discrepancy between focus and convergence.		As far as the [[ciliary muscle]] is concerned, your edge of blur is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the visual cortex notices the discrepancy between focus and convergence.

Dlskidmore: new page

2020-05-25T18:36:51Z

new page

New page

Your eye can focus on one distance at a time through [[accommodation]]. Standard [[full prescriptions]] have a minimum power of 0.25D, which would compensate for an [[edge of blur]] at 4 meters. 6 meters or 20 feet is considered as far as you possibly need to measure vision. Beyond that the number of the [[rods and cones]] in the back of your eye is a bigger limiting factor on vision than any tiny additional refraction bonus you could get.

As far as the [[ciliary muscle]] is concerned, your edge of blur is distance vision, no matter what the absolute distance, but you will have [[convergence]] at a near vision angle when looking at edge of blur through [[differentials]]. This is a possible mechanism of action for improvement, when the visual cortex notices the discrepancy between focus and convergence.

In the EndMyopia system, we use [[normalized]] glasses for outdoor work, for reading street signs, for looking out windows, and other distance vision tasks.

=See Also=
[[20-20-20 Rule]]

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	* [[3 hour rule]]		* [[3 hour rule]]
	* [[20-20-20 Rule]]		* [[20-20-20 Rule]]

			* [[Close-up]]

	[[Category:Articles]]		[[Category:Articles]]