Difference between revisions of Frequently Asked Questions/Myopia
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Frequently Asked Questions/Myopia (view source)
Revision as of 18:22, 20 August 2023
, 20 August 2023→Is myopia genetic/hereditary?
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From Wikipedia: | From Wikipedia: | ||
''“'''Pseudomyopia''' refers to an intermittent and temporary shift in refraction of the eye towards myopia, in which the focusing of light in front of the retina is due to a transient spasm of the ciliary muscle causing an increase in the refractive power of the eye.”''}} | |||
===Does computer work cause pseudomyopia?=== | |||
{{also|Frequently Asked Questions/Myopia/Quotes#Pseudomyopia}} | |||
{{jake says|Maybe. Sort of. | |||
All myopia starts as “pseudo myopia”, also referred to as ciliary spasm myopia or NITM (near-induced transient myopia). | |||
This isn’t real myopia, in that it would just go away if you stopped the excessive close-up focus. A whole lot of computer work, every day, never stopping that strain, does cause pseudo myopia. This can show up to be anywhere from 1 to 1.5 diopters at an optometrist exam. | |||
Computer work alone (or reading books, or any other consistent close-up focus) doesn’t cause myopia higher than 1.5 diopters of optometrist diagnosed correction. It’s not until you begin to wear glasses, that real myopia happens (lens-induced, axial elongation myopia). }} | |||
==Why is my eyesight worse indoors or in low light?== | ==Why is my eyesight worse indoors or in low light?== | ||
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===Is myopia genetic/hereditary?=== | ===Is myopia genetic/hereditary?=== | ||
{{also|Frequently Asked Questions/Myopia/Quotes#Hereditary factors of myopia}} | |||
[[File:Double_D_Facts_about_Myopia.png|350px|right]] | [[File:Double_D_Facts_about_Myopia.png|350px|right]] | ||
No, in the majority of cases. The majority of myopia is [[lens-induced]] in the world. Question why [[Wikipedia:natural selection]] has failed so terribly it's resulted in eye defects in huge swathes of the population, two billion in the world. | No, in the majority of cases. The majority of myopia is [[lens-induced]] in the world. Question why [[Wikipedia:natural selection]] has failed so terribly it's resulted in eye defects in huge swathes of the population, two billion in the world. | ||
The Ministry of Healh in Singapore says: {{xt| | The Ministry of Healh in Singapore says: {{xt|“The prevalence of myopia in Singapore is among the highest in the world, with 65 percent of our children being myopic by Primary 6, and 83 percent of young adults being myopic.”}}<ref>https://www.moh.gov.sg/news-highlights/details/speech-by-dr-lam-pin-min-senior-minister-of-state-for-health-at-the-opening-of-the-singapore-national-eye-centre-s-myopia-centre-16-august-2019#:~:text=2.,of%20young%20adults%20being%20myopic</ref> How did their ancestors survive to lead to the current generation if myopia is generally so disadvantageous to an organism's survival? | ||
{{clear}} | {{clear}} | ||
{{jake says|No. And yes. | |||
Myopia has two primary causes (or stages). Ciliary (focusing muscle) spasm, also referred to as pseudo myopia, or near-induced transient myopia. It then becomes lens-induced myopia if you start wearing glasses. | |||
The degree to which your myopia will increase with the second (lens-induced) stage, depends on genetics to some degree.}} | |||
===Is infant myopia normal?=== | ===Is infant myopia normal?=== | ||
{{also|Frequently Asked Questions/Myopia/Quotes#Infant myopia}} | {{also|Frequently Asked Questions/Myopia/Quotes#Infant myopia}} | ||