Difference between revisions of Myopia

Line 1:

'''Myopia''', also known as '''near-sightedness''' or '''short-sightedness''', is a refractive state where distant objects appear [[blur]]ry while close objects appear clear. This occurs because of a mismatch between the [[axial length]] and the focusing power of the visual system, causing the image of an object ~~at infinity to focus in front of the [[retina]]~~. Someone who has myopia is called a '''myope'''.

'''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]].

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]].

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.

==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]].

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.

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

==References==

@@ Line 1: / Line 1: @@
-'''Myopia''', also known as '''near-sightedness''' or '''short-sightedness''', is a refractive state where distant objects appear [[blur]]ry while close objects appear clear. This occurs because of a mismatch between the [[axial length]] and the focusing power of the visual system, causing the image of an object at infinity to focus in front of the [[retina]]. Someone who has myopia is called a '''myope'''.
+'''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]].
-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]].
+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.
 ==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]].
+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.
+Very few people have high myopia for genetic reasons. Most people who have high myopia had gradually-increasing [[lens-induced myopia]].
 ==References==