Endmyopia Wiki - User contributions [en]

User:Phil3741

2021-03-28T13:15:47Z

Phil3741: Blanked the page

User:Phil3741

2021-03-28T13:15:31Z

Phil3741:

{{VisionStats |title = Initial | left sphere = -1.25 | right sphere = -1.0 | left cylinder = | right cylinder = | left axis = | right axis = }}

User:Phil3741

2021-03-28T13:14:45Z

Phil3741:

User:Phil3741

2020-06-26T09:34:45Z

Phil3741:

[[Image:Dk.PNG|thumb|500px| Getting good [[Distance Vision]] from up here]]
{{VisionStats |title = Initial | left sphere = -1.25 | right sphere = -1.0 | left cylinder = | right cylinder = | left axis = | right axis = }}

{{VisionStats |title = Normalised | left sphere = -0.5 | right sphere = -0.5 | left cylinder = | right cylinder = | left axis = | right axis = }}
Yes, my Myopia is low - just like my effort in improving my eyesight for the previous 8 years. Starting out low is both a blessing and a curse. If it would be as easy as just dropping your correction I would of done it long time ago ;)

Thanks for passing by, here's a cookie: 🍪

Vertex distance

2020-06-26T07:03:14Z

Phil3741: Fixed indent

The '''vertex distance''' is the distance between the surface of your eye and the center back of your lens. As the lens moves further from the eye, the perceived strength of your lenses is altered. This is particularly important to know about when switching between contacts and eyeglasses, and for very high myopes.

==Practical Guidelines==

* <div> '''I have ''High Myopia''. How does Vertex Distance affect me?'''</div>
:If you wore contact lenses before EndMyopia (EM) and continue to use contact lenses throughout your EM journey - Then vertex distance doesn't affect you.

:If you wore glasses before EM and continue to wear glasses during EM then it is recommended to invest in a [[lens kit]] and choose your reduced lenses based on testing your [[visual acuity]] - Then vertex distance doesn't affect you. If you do not have access to a lens kit and you want to reduce in pre-defined diopter steps - Then vertex distance can affect you: For example, reducing from -14.0 dpt to -13.75 dpt at a vertex distance of 15mm results in an effective perceived diopter drop of only 0.17 dpt, further reducing to -13.5 dpt would result in an effective diopter drop of 0.34 dpt.

:If you switch from glasses to contact lenses at high myopia or vice-versa you definitely will need to account for vertex distance before buying new corrections.

* <div> '''I wear contact lenses as [[normalized]] and put [[plus lenses]] over them as my [[differentials]]. Do I need to worry about vertex distance?'''</div>
:No. Your differential correction will not undercorrect you by a diopter margin where vertex distance plays a role.

* <div> '''How do I measure my vertex distance?''' </div>
:Ask a second person to measure the distance from your closed eye to your glasses while you wear them. Or, as a literal "rule of thumb", try placing different fingers between your closed eye and the back of your glasses, then measure the thickness of your finger - This is an estimate for your vertex distance.

* <div> '''I use the endmyopia.org Diopter Calculator App and my results differ from my manual centimeter [[measurement]]s, why?''' </div>

:The [https://play.google.com/store/apps/details?id=org.endmyopia.calc Diopter Calculator App for Android] (as for the June 2020) measures the distance from the screen to the tip of your nose. Since the distance from the nose to your eyeball is not taken into account, your focal length seems smaller (and your diopters higher) than with a manual measurement. You can however correct these values by applying the same formula as for the vertex distance, inserting the distance from the tip of your nose to your eyeball for <math>x</math>.

==Calculation==
{{Notice|Advanced, this information may not apply. See above.}}
The effect of vertex distance on the perceived diopter strength of your glasses can be expressed by:

<math>D_C=\frac{1}{\frac{1}{D}-x}</math>,

where <math>D_C</math> is the corrected (perceived) diopter number, <math>D</math> is the diopter strength of your lenses and <math>x</math> is the vertex distance in meters. It is important to note here that this equation is sensitive to minus signs of your diopter strength.

Example for a vertex distance of 15mm (=0.015m):

<math>+4.0 dpt: D_C=\frac{1}{\frac{1}{+4.0}-0.015}=+4.255 dpt</math>

<math>-4.0 dpt: D_C=\frac{1}{\frac{1}{-4.0}-0.015}=-3.774 dpt</math>

In the above example the -4.0 dpt glasses yield the same level of correction as -3.75 dpt contact lenses. It can be seen that vertex distance '''increases''' the strength of [[plus Lenses]] and '''decreases''' the strength of [[minus lenses]]. The effect is noticeable above 4.0 dpt and is mostly negligible for [[low myopia]].

The expression looks less intimidating when you remember that (by definition) the [[diopter]] is the reciprocal of the focal length. So it's really just:

<math>f_C = f - x</math>
where <math>f_C = \frac{1}{D_C}</math> and <math>f = \frac{1}{D}</math>

Conceptually, the focus length is reduced (power is increased) because it has moved closer to the source of the image.

==References==
{{reflist}}

[[Category:Articles]]

Vertex distance

2020-06-08T21:06:22Z

Phil3741: /* Practical Guidelines */

The '''vertex distance''' is the distance between the surface of your eye and the center back of your lens. As the lens moves further from the eye, the perceived strength of your lenses is altered. This is particularly important to know about when switching between contacts and eyeglasses, and for very high myopes.

==Calculation==
The effect of vertex distance on the perceived diopter strength of your glasses can be expressed by:

<math>D_C=1/(1/D-x)</math>,

where <math>D_C</math> is the corrected (perceived) diopter number, <math>D</math> is the diopter strength of your lenses and <math>x</math> is the vertex distance in meters. It is important to note here that this equation is sensitive to minus signs of your diopter strength.

Example for a vertex distance of 15mm (=0.015m):

<math>+4.0 dpt: D_C=1/(1/(+4.0)-0.015)=+4.255 dpt</math>

<math>-4.0 dpt: D_C=1/(1/(-4.0)-0.015)=-3.774 dpt</math>

In the above example the -4.0 dpt glasses yield the same level of correction as -3.75 dpt contact lenses. It can be seen that vertex distance '''increases''' the strength of [[plus Lenses]] and '''decreases''' the strength of [[minus lenses]]. The effect is noticeable above 4.0 dpt and is mostly negligible for [[low myopia]].

The expression looks less intimidating when you remember that (by definition) the [[diopter]] is the reciprocal of the focal length. So it's really just:

<math>f_C = f - x</math>
where <math>f_C = 1/D_C</math> and <math>f = 1/D</math>

Conceptually, the focus length is reduced (power is increased) because it has moved closer to the source of the image.

==Practical Guidelines==

* <div> '''I have ''High Myopia''. How does Vertex Distance affect me?'''</div>
If you wore contact lenses before EndMyopia (EM) and continue to use contact lenses throughout your EM journey - Then vertex distance doesn't affect you.

If you wore glasses before EM and continue to wear glasses during EM then it is recommended to invest in a [[lens kit]] and choose your reduced lenses based on testing your [[visual acuity]] - Then vertex distance doesn't affect you. If you do not have access to a lens kit and you want to reduce in pre-defined diopter steps - Then vertex distance can affect you: For example, reducing from -14.0 dpt to -13.75 dpt at a vertex distance of 15mm results in an effective perceived diopter drop of only 0.17 dpt, further reducing to -13.5 dpt would result in an effective diopter drop of 0.34 dpt.

If you switch from glasses to contact lenses at high myopia or vice-versa you definitely will need to account for vertex distance before buying new corrections.

* <div> '''I wear contact lenses as [[normalized]] and put [[plus lenses]] over them as my [[differentials]]. Do I need to worry about vertex distance?'''</div>
No. Your differential correction will not undercorrect you by a diopter margin where vertex distance plays a role.

* <div> '''How do I measure my vertex distance?''' </div>
Ask a second person to measure the distance from your closed eye to your glasses while you wear them. Or, as a literal "rule of thumb", try placing different fingers between your closed eye and the back of your glasses, then measure the thickness of your finger - This is an estimate for your vertex distance.

* <div> '''I use the endmyopia.org Diopter Calculator App and my results differ from my manual centimeter [[measurement]]s, why?''' </div>

The [https://play.google.com/store/apps/details?id=org.endmyopia.calc Diopter Calculator App for Android] (as for the June 2020) measures the distance from the screen to the tip of your nose. Since the distance from the nose to your eyeball is not taken into account, your focal length seems smaller (and your diopters higher) than with a manual measurement. You can however correct these values by applying the same formula as for the vertex distance, inserting the distance from the tip of your nose to your eyeball for <math>x</math>.

==References==
{{reflist}}

[[Category:Articles]]

20/20 correction

2020-06-08T20:57:35Z

Phil3741:

'''''20/20 correction''''' is a correction you normally get from a licensed optician, which corrects your eyesight up to a degree of [[visual acuity]] that an [[emmetropic]] (or "normal-seeing") person achieves on a [[Snellen Chart]]. "20" refers to the distance (in ft) to the standardized Snellen Chart. So if you have 20/20 vision, you can see normally. More specifically, 20/20 vision is defined as being able to differentiate details that make up 1 arc minute of your viewing angle, which equals around 0.016° of your 360° visual perception. If you can see 20/15 or even better, this means that your are [[overcorrected]].

It is very difficult to perform [[Active Focus]] at this strength of glasses, as there is not enough of a [[blur horizon]] to produce [[stimulus]] - see [[Distance vision]].
==See also==
[[20/x vision]]

==References==
{{reflist}}

[[Category:Articles]]

Snellen chart

2020-06-08T20:53:51Z

Phil3741:

{{Under_construction}}
A '''Snellen chart''' is a standard method of measuring [[visual acuity]]. A chart is rated for the distance it should be viewed at, and the lowest line that can be read has a visual acuity result number next to it. The standard distance for Snellen charts is 20 feet or 6 meters. Smaller versions are available for use in smaller indoor spaces. Generally, the [[20/20]] line is the baseline to which your optometrist will aim for your vision correction. The Snellen chart is the most commonly used way of testing if someone has sufficient corrected visual acuity to drive legally. There is no direct correlation between visual acuity and [[myopia]]. Your [[optometrist]] will use the Snellen chart as a reference, to see what refraction will allow you to read the lowest on the chart.

=How to use a Snellen Chart to measure Acuity=
# Read the documentation that came with your chart to determine what distance it is designed to be viewed at. This is usually 10 feet, 20 feet, 3 m or 6m. It may say right on the chart, on the back, or in the description of the product where you got it.
# Post the chart at eye level
# Make a mark on the floor at the distance the chart is rated for.
# Stand so that your face is above that line.
# Read the lowest line you can see clearly.
# Attempt to read the next line down.
# Have an assistant tell you if you got the letters right or move forward to check. If you got most of the letters right on that line, then the ratio marked for that line is your visual acuity.

=How to use a Snellen Chart with Refraction=
See: [[trial lens kit]]

==References==
{{reflist}}

[[Category:Articles]]

Snellen chart

2020-06-08T20:53:28Z

Phil3741:

{{Under_construction}}
A '''Snellen chart''' is a standard method of measuring [[visual acuity]]. A chart is rated for the distance it should be viewed at, and the lowest line that can be read has a visual acuity result number next to it. The standard distance for Snellen charts is 20 feet or 6 meters. Smaller versions are available for use in smaller indoor spaces. Generally, the [[20/20]] is the baseline to which your optometrist will aim for your vision correction. The Snellen chart is the most commonly used way of testing if someone has sufficient corrected visual acuity to drive legally. There is no direct correlation between visual acuity and [[myopia]]. Your [[optometrist]] will use the Snellen chart as a reference, to see what refraction will allow you to read the lowest on the chart.

=How to use a Snellen Chart to measure Acuity=
# Read the documentation that came with your chart to determine what distance it is designed to be viewed at. This is usually 10 feet, 20 feet, 3 m or 6m. It may say right on the chart, on the back, or in the description of the product where you got it.
# Post the chart at eye level
# Make a mark on the floor at the distance the chart is rated for.
# Stand so that your face is above that line.
# Read the lowest line you can see clearly.
# Attempt to read the next line down.
# Have an assistant tell you if you got the letters right or move forward to check. If you got most of the letters right on that line, then the ratio marked for that line is your visual acuity.

=How to use a Snellen Chart with Refraction=
See: [[trial lens kit]]

==References==
{{reflist}}

[[Category:Articles]]

User talk:Phil3741

2020-06-08T20:48:42Z

Phil3741: /* Have some admin */

==Welcome to EndMyopia Wiki! 👓==
Phil3741, welcome to EndMyopia Wiki.

We hope you'll have a good time here, writing about [[eyeballs]]. Every article is important to empower [[myope]]s to improve their eyesight. 📚🤓

The objective of EndMyopia Wiki is to build '''the best vision improvement encyclopedia possible'''. Please write articles of interest to you. EndMyopia receives a lot more [[EM:user traffic|user traffic]] than you might think at first. On [[EM:social media|social media]] the community receives plenty of questions about vision improvement, particularly in the Facebook group and in YouTube comments every day. If you can help write articles that address these common questions, you will be helping a lot of people! 🤠

Please read the following before editing:
*[[Help:How to contribute]] if you are unsure how to edit wiki articles
*[[EM:Policies]] for important information on the way articles are written here

If you have any questions about editing the wiki, you will likely get a fast response from the [{{discord}} Discord server]. If there are any suggestions for improvement, [[User talk:NottNott|please contact NottNott]]. Happy editing! 🧾

-- [[User:NottNott|<span style="color:#e67e22">NottNott</span>]] <small>([[User talk:NottNott|talk]])</small> 11:20, 8 June 2020 (UTC)

== Hello ==

Hi Phil, thanks for joining in. [[User:Sam.Watson|Sam.Watson]] ([[User talk:Sam.Watson|talk]]) 18:25, 8 June 2020 (UTC)

:{{re|Sam.Watson}} Hey man, always a pleasure. [[User:Phil3741|Phil3741]] ([[User talk:Phil3741|talk]]) 20:12, 8 June 2020 (UTC)

== Have some admin ==

You're an admin now - feel free to delete the entire wiki! -[[User:NottNott|<span style="color:#e67e22">NottNott</span>]] <small>([[User talk:NottNott|talk]])</small> 20:44, 8 June 2020 (UTC)

:{{re|NottNott}} UNLIMITED POWER!1! Thanks, I'm gonna take it slowly as I still have to figure out the inner workings of this machine [[User:Phil3741|Phil3741]] ([[User talk:Phil3741|talk]]) 20:48, 8 June 2020 (UTC)

20/20 correction

2020-06-08T20:41:45Z

Phil3741: Article was redirecting to itself

'''''20/20 correction''''' is a correction you normally get from a licensed optician, which corrects your eyesight up to a degree of [[visual acuity]] that an [[emmetropic]] (or "normal-seeing") person achieves on a [[Snellen Chart]]. "20" refers to the distance (in ft) to the standardized Snellen Chart. So if you have 20/20 vision, you can see normally. If you can see 20/15 or even better, this means that your are [[overcorrected]].

It is very difficult to perform [[Active Focus]] at this strength of glasses, as there is not enough of a [[blur horizon]] to produce [[stimulus]] - see [[Distance vision]].
==See also==
[[20/x vision]]

==References==
{{reflist}}

[[Category:Articles]]

User:Phil3741

2020-06-08T20:26:06Z

Phil3741:

Procrastinating PhD student <s>trying to show off in this wiki</s>.

[[Image:Dk.PNG|thumb|500px| Getting good [[Distance Vision]] from up here]]
{{VisionStats |title = Initial | left sphere = -1.25 | right sphere = -1.0 | left cylinder = | right cylinder = | left axis = | right axis = }}

{{VisionStats |title = Normalised | left sphere = -0.5 | right sphere = -0.5 | left cylinder = | right cylinder = | left axis = | right axis = }}
Yes, my Myopia is low - just like my effort in improving my eyesight for the previous 8 years. Starting out low is both a blessing and a curse. If it would be as easy as just dropping your correction I would of done it long time ago ;)

Thanks for passing by, here's a cookie: 🍪

User talk:Phil3741

2020-06-08T20:12:54Z

Phil3741: /* Hello */

User:Phil3741

2020-06-08T19:42:41Z

Phil3741:

User:Phil3741

2020-06-08T19:26:23Z

Phil3741:

Procrastinating PhD student <s>trying to show off in this wiki</s>.

[[Image:Dk.PNG|thumb|500px| Getting good [[Distance Vision]] from up here]]

File:Dk.PNG

2020-06-08T19:24:44Z

Phil3741:

== Licensing ==
{{cc-zero-nodetail}}

Vertex distance

2020-06-08T18:39:53Z

Phil3741: typo

The '''vertex distance''' is the distance between the surface of your eye and the center back of your lens. As the lens moves further from the eye, the perceived strength of your lenses is altered. This is particularly important to know about when switching between contacts and eyeglasses, and for very high myopes.

==Calculation==
The effect of vertex distance on the perceived diopter strength of your glasses can be expressed by:

<math>D_C=1/(1/D-x)</math>,

where <math>D_C</math> is the corrected (perceived) diopter number, <math>D</math> is the diopter strength of your lenses and <math>x</math> is the vertex distance in meters. It is important to note here that this equation is sensitive to minus signs of your diopter strength.

Example for a vertex distance of 15mm (=0.015m):

<math>+4.0 dpt: D_C=1/(1/(+4.0)-0.015)=+4.255 dpt</math>

<math>-4.0 dpt: D_C=1/(1/(-4.0)-0.015)=-3.774 dpt</math>

In the above example the -4.0 dpt glasses yield the same level of correction as -3.75 dpt contact lenses. It can be seen that vertex distance '''increases''' the strength of [[Plus Lenses]] and '''decreases''' the strength of [[Minus Lenses]]. The effect is noticeable above 4.0 dpt and is mostly negligible for [[Low Myopia]].

The expression looks less intimidating when you remember that (by definition) the [[Diopter]] is the reciprocal of the focal length. So it's really just:

<math>f_C = f - x</math>
where <math>f_C = 1/D_C</math> and <math>f = 1/D</math>

Conceptually, the focus length is reduced (power is increased) because it has moved closer to the source of the image.

==Practical Guidelines==

* <div> '''I have ''High Myopia''. How does Vertex Distance affect me?'''</div>
If you wore contact lenses before EndMyopia (EM) and continue to use contact lenses throughout your EM journey - Then vertex distance doesn't affect you.

If you wore glasses before EM and continue to wear glasses during EM then it is recommended to invest in a [[Lens Kit]] and choose your reduced lenses based on testing your visual acuity - Then vertex distance doesn't affect you. If you do not have access to a lens kit and you want to reduce in pre-defined diopter steps - Then vertex distance can affect you: For example, reducing from -14.0 dpt to -13.75 dpt at a vertex distance of 15mm results in an effective perceived diopter drop of only 0.17 dpt, further reducing to -13.5 dpt would result in an effective diopter drop of 0.34 dpt.

If you switch from glasses to contact lenses at high myopia or vice-versa you definitely will need to account for vertex distance before buying new corrections.

* <div> '''I wear contact lenses as [[normalized]] and put [[Plus Lenses]] over them as my [[differentials]]. Do I need to worry about vertex distance?'''</div>
No. Your differential correction will not undercorrect you by a diopter margin where vertex distance plays a role.

* <div> '''How do I measure my vertex distance?''' </div>
Ask a second person to measure the distance from your closed eye to your glasses while you wear them. Or, as a literal "rule of thumb", try placing different fingers between your closed eye and the back of your glasses, then measure the thickness of your finger - This is an estimate for your vertex distance.

* <div> '''I use the endmyopia.org Diopter Calculator App and my results differ from my manual centimeter [[measurements]], why?''' </div>

The [https://play.google.com/store/apps/details?id=org.endmyopia.calc Diopter Calculator App for Android] (as for the June 2020) measures the distance from the screen to the tip of your nose. Since the distance from the nose to your eyeball is not taken into account, your focal length seems smaller (and your diopters higher) than with a manual measurement. You can however correct these values by applying the same formula as for the vertex distance, inserting the distance from the tip of your nose to your eyeball for <math>x</math>.

==References==
{{reflist}}

[[Category:Articles]]

User:Phil3741

2020-06-08T18:18:44Z

Phil3741:

Procrastinating PhD student <s>trying to show off in this wiki</s>.

User:Phil3741

2020-06-08T18:15:43Z

Phil3741: Created page with "Procrastinating PhD student trying to show off in this wiki."

Procrastinating PhD student trying to show off in this wiki.

Vertex distance

2020-06-08T17:31:18Z

Phil3741:

The '''vertex distance''' is the distance between the surface of your eye and the center back of your lens. As the lens moves further from the eye, the perceived strength of your lenses is altered. This is particularly important to know about when switching between contacts and eyeglasses, and for very high myopes.

==Calculation==
The effect of vertex distance on the perceived diopter strength of your glasses can be expressed by:

<math>D_C=1/(1/D-x)</math>,

where <math>D_C</math> is the corrected (perceived) diopter number, <math>D</math> is the diopter strength of your lenses and <math>x</math> is the vertex distance in meters. It is important to note here that this equation is sensitive to minus signs of your diopter strength.

Example for a vertex distance of 15mm (=0.015m):

<math>+4.0 dpt: D_C=1/(1/(+4.0)-0.015)=+4.255 dpt</math>

<math>-4.0 dpt: D_C=1/(1/(-4.0)-0.015)=-3.774 dpt</math>

In the above example the -4.0 dpt glasses yield the same level of correction as -3.75 dpt contact lenses. It can be seen that vertex distance '''increases''' the strength of [[Plus Lenses]] and '''decreases''' the strength of [[Minus Lenses]]. The effect is noticeable above 4.0 dpt and is mostly negligible for [[Low Myopia]].

The expression looks less intimidating when you remember that (by definition) the [[Diopter]] is the reciprocal of the focal length. So it's really just:

<math>f_C = f - x</math>
where <math>f_C = 1/D_C</math> and <math>f = 1/D</math>

Conceptually, the focus length is reduced (power is increased) because it has moved closer to the source of the image.

==Practical Guidelines==

* <div> '''I have ''High Myopia''. How does Vertex Distance effect me?'''</div>
If you wore contact lenses before EndMyopia (EM) and continue to use contact lenses throughout your EM journey - Then vertex distance doesn't effect you.

If you wore glasses before EM and continue to wear glasses during EM then it is recommended to invest in a [[Lens Kit]] and choose your reduced lenses based on testing your visual acuity - Then vertex distance doesn't effect you. If you do not have access to a lens kit and you want to reduce in pre-defined diopter steps - Then vertex distance can effect you: For example, reducing from -14.0 dpt to -13.75 dpt at a vertex distance of 15mm results in an effective perceived diopter drop of only 0.17 dpt, further reducing to -13.5 dpt would result in an effective diopter drop of 0.34 dpt.

If you switch from glasses to contact lenses at high myopia or vice-versa you definitely will need to account for vertex distance before buying new corrections.

* <div> '''I wear contact lenses as [[normalized]] and put [[Plus Lenses]] over them as my [[differentials]]. Do I need to worry about vertex distance?'''</div>
No. Your differential correction will not undercorrect you by a diopter margin where vertex distance plays a role.

* <div> '''How do I measure my vertex distance?''' </div>
Ask a second person to measure the distance from your closed eye to your glasses while you wear them. Or, as a literal "rule of thumb", try placing different fingers between your closed eye and the back of your glasses, then measure the thickness of your finger - This is an estimate for your vertex distance.

* <div> '''I use the endmyopia.org Diopter Calculator App and my results differ from my manual centimeter [[measurements]], why?''' </div>

The [https://play.google.com/store/apps/details?id=org.endmyopia.calc Diopter Calculator App for Android] (as for the June 2020) measures the distance from the screen to the tip of your nose. Since the distance from the nose to your eyeball is not taken into account, your focal length seems smaller (and your diopters higher) than with a manual measurement. You can however correct these values by applying the same formula as for the vertex distance, inserting the distance from the tip of your nose to your eyeball for <math>x</math>.

==References==
{{reflist}}

[[Category:Articles]]

Vertex distance

2020-06-08T14:16:35Z

Phil3741:

Plus Lenses

2020-06-08T14:08:54Z

Phil3741: #REDIRECT

#REDIRECT [[Plus lenses]]

Vertex distance

2020-06-08T14:03:25Z

Phil3741: typo

Vertex distance

2020-06-08T14:01:41Z

Phil3741: Inserted formula, example calculation and plus/minus lens discussion

Focal Plane

2020-06-08T13:39:02Z

Phil3741: Changed redirect target from Myopia#Low Myopia to Focal length

#REDIRECT [[Focal length]]

Distance Vision

2020-06-08T13:31:49Z

Phil3741: Redirected page to Distance vision

#REDIRECT [[Distance vision]]

Myopia

2020-06-08T13:29:56Z

Phil3741:

'''Myopia''' is the technical term for short-sightedness. Someone who has myopia is called a '''myope'''.

=Low Myopia=
Low Myopia is short-sightedness in the range of -3 dpt or below. Most people who develop Myopia throughout their lifetimes are prescribed with glasses in the Low Myopia range initially at around -1 dpt after experiencing [[Pseudomyopia]].

The same basic principles for reversing [[Lens-induced myopia]] apply for all ranges of Myopia, however below -2 dpt usually no glasses are needed for [[close-up]] work. This means that improvement might slow down because positive stimulus can only come from [[Distance Vision]].

==References==
{{reflist}}

[[Category:Articles]]

Low Myopia

2020-06-08T13:07:02Z

Phil3741: Redirected page to Myopia#Low Myopia

#REDIRECT [[Myopia#Low Myopia]]

Focal Plane

2020-06-08T12:52:42Z

Phil3741: Redirected page to Myopia#Low Myopia

#REDIRECT [[Myopia#Low Myopia]]

Double vision

2020-06-08T12:46:51Z

Phil3741:

'''Double Vision''', misaligned vision, or ghosting, is when your visual cortex perceives two images when there should be one.

This phenomenon usually occurs as an intermediate step in your vision improvement and is to be differentiated from [[Astigmatism]] ("Directional Blur"). Your vision biology is constantly adjusting to environmental stimulus, whereby different parts of your system respond at different rates. After clearing up [[Ciliary Spasm]] and after starting to improve the physical shape of your eyeball, your [[visual cortex]] already receives plenty of clear data. Our brains however where not built to handle artificial changes to the natural [[Focal Plane]]. This means that even when the image hitting your [[Retina]] is clear after reducing the strength of your glasses, your brain has to relearn how to create a single clear image out of this new data. This can take longer than resolving the refractive state of your eyeballs and manifests in multiple but clear images of the same image.
This might be somewhat common as you start improving your eyesight - more ghosted images will begin to appear as your [[visual cortex]] is constantly learning to readjust to new signals.

Double Vision can be more pronounced once you are in the [[Low Myopia]] range, since every small change in your diopter strength then results in a larger shift of your [[Focal Plane]].
==References==
{{reflist}}

[[Category:Articles]]

Double vision

2020-06-08T11:55:40Z

Phil3741:

Double vision

2020-06-08T11:54:25Z

Phil3741:

'''Double Vision''', misaligned vision, or ghosting, is when your visual cortex perceives two images when there should be one.

This phenomenon usually occurs as an intermediate step in your vision improvement and is to be differentiated from Astigmatism ("Directional Blur"). Your vision biology is constantly adjusting to environmental stimulus, whereby different parts of your system respond at different rates. After clearing up Ciliary Spasm and after starting to improve the physical shape of your eyeball, your visual cortex already receives plenty of clear data. Our brains however where not built to handle artificial changes to the natural Focal Plane. This means that even when the image hitting your Retina is clear after reducing the strength of your glasses, your brain has to relearn how to create a single clear image out of this new data. This can take longer than resolving the refractive state of your eyeballs and manifests in multiple but clear images of the same image.
This might be somewhat common as you start improving your eyesight - more ghosted images will begin to appear as your [[visual cortex]] is constantly learning to readjust to new signals.

==References==
{{reflist}}

[[Category:Articles]]

Double vision

2020-06-08T11:54:01Z

Phil3741:

'''Double Vision''', misaligned vision, or ghosting, is when your visual cortex perceives two images when there should be one.

[[Category:Origin]]

This phenomenon usually occurs as an intermediate step in your vision improvement and is to be differentiated from Astigmatism ("Directional Blur"). Your vision biology is constantly adjusting to environmental stimulus, whereby different parts of your system respond at different rates. After clearing up Ciliary Spasm and after starting to improve the physical shape of your eyeball, your visual cortex already receives plenty of clear data. Our brains however where not built to handle artificial changes to the natural Focal Plane. This means that even when the image hitting your Retina is clear after reducing the strength of your glasses, your brain has to relearn how to create a single clear image out of this new data. This can take longer than resolving the refractive state of your eyeballs and manifests in multiple but clear images of the same image.
This might be somewhat common as you start improving your eyesight - more ghosted images will begin to appear as your [[visual cortex]] is constantly learning to readjust to new signals.

==References==
{{reflist}}

[[Category:Articles]]