Difference between revisions of Refractive state
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'''Refractive state''' (also called '''refractive error''') is the lens that causes parallel light rays (distant light) to be focused on the retina when [[accommodation]] is relaxed. | '''Refractive state''' (also called '''refractive error''') is the lens that causes parallel light rays (distant light) to be focused on the retina when [[accommodation]] is relaxed. | ||
Your [[eye]] is a complex system of multiple layers of material with different [[refraction|refractive indexes]], all trying to project the great big wide world onto your tiny retina. Sometimes there is a mismatch between the refraction of light into the eye and its length, and the focusing system at the front of the eye misses its target in the back. This causes [[near-sightedness]] or [[far-sightedness]], which is not a medical disease in and of itself, but just a result of your refractive state not being [[ | Your [[eye]] is a complex system of multiple layers of material with different [[refraction|refractive indexes]], all trying to project the great big wide world onto your tiny retina. Sometimes there is a mismatch between the refraction of light into the eye and its length, and the focusing system at the front of the eye misses its target in the back. This causes [[near-sightedness]] or [[far-sightedness]], which is not a medical disease in and of itself, but just a result of your refractive state not being [[emmetropia|zero]]. | ||
==[[LEGAL:NMA|EndMyopia:No medical advice]]== | ==[[LEGAL:NMA|EndMyopia:No medical advice]]== | ||