Difference between revisions of Myopia

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'''Near-sightedness''', '''Short-sightedness''', or technically '''Myopia''' is an eye condition where distant objects appear [[blur]]ry while close objects appear clear, this occurs because the visual system has too much refractive power, causing an image at infinity to focus in front of the [[retina]]. Someone who has myopia is called a '''myope'''.


=Low Myopia=
'''Myopia''', also known as '''near-sightedness''' or '''short-sightedness''', is a refractive state where distant objects at infinity focus in front of the [[retina]]. This generally causes distant objects to appear [[blur]]ry, while close objects appear clear with [[accommodation]]. This occurs because of a mismatch between the [[axial length]] and the focusing power of the visual system, causing the image of an object. 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]].
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]].
===Zero differentials===
The same basic principles for reversing [[Lens-induced myopia]] apply for all ranges of myopia, however below -2 to -1.5 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]], unless [[plus lenses]] are used.
 
===Very low myopia===
Instead of reducing from -1.5, -1.25, or -1 (based on personal preference), the current EM strategy is to alternate zero and normalized correction, which is a variation of [[zero diopter reset]].
 
==Moderate Myopia==
Definitions vary, but -2 or -3 to -5 or -6 is considered moderate myopia.
 
==High Myopia==
Definitions vary, but more than -5 or -6 diopters is considered high myopia.  This category has a higher risk of various eye diseases and should be particularly regular about getting exams from an [[optometrist]] or ophthalmologist. If your myopia is even worse, see the [[severe myopia]] page for guidance.
 
Very few people have high myopia for genetic reasons. Most people who have high myopia had gradually-increasing [[lens-induced myopia]].
 
==Translations==
This guide has been translated to Polish. See [[EndMyopia Translated]]


==References==
==References==

Latest revision as of 12:44, 29 May 2022

Myopia, also known as near-sightedness or short-sightedness, is a refractive state where distant objects at infinity focus in front of the retina. This generally causes distant objects to appear blurry, while close objects appear clear with accommodation. This occurs because of a mismatch between the axial length and the focusing power of the visual system, causing the image of an object. 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.

Zero differentials

The same basic principles for reversing Lens-induced myopia apply for all ranges of myopia, however below -2 to -1.5 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, unless plus lenses are used.

Very low myopia

Instead of reducing from -1.5, -1.25, or -1 (based on personal preference), the current EM strategy is to alternate zero and normalized correction, which is a variation of zero diopter reset.

Moderate Myopia

Definitions vary, but -2 or -3 to -5 or -6 is considered moderate myopia.

High Myopia

Definitions vary, but more than -5 or -6 diopters is considered high myopia. This category has a higher risk of various eye diseases and should be particularly regular about getting exams from an optometrist or ophthalmologist. If your myopia is even worse, see the severe myopia page for guidance.

Very few people have high myopia for genetic reasons. Most people who have high myopia had gradually-increasing lens-induced myopia.

Translations

This guide has been translated to Polish. See EndMyopia Translated

References