Difference between revisions of Hyperopic defocus

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Hyperopic defocus =/= blur
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'''Hyperopic defocus''' is a [[refractive state]] in which the image is focused behind the [[retina]], such as when wearing glasses that are too powerful for [[close-up]] work. It is a stimulus which, over time, can cause [[axial elongation]] and is the primary cause of [[lens-induced myopia]].
'''Hyperopic defocus''' is the technical term used by research papers to describe the [[blur#Myopic_vs_Hyperopic_Blur|blur]] caused by having the image focused behind the retina.  It would normally be resolved automatically by [[accommodation]], but the lens is not strong enough to do so for objects closer than the [[near point]], which moves outwards during a [[ciliary spasm]].
 
Studies show that it is a stimulus which, over time, can cause [[axial elongation]].
 
==See also==
* [[Hyperopia]]
* [[Myopic defocus]]


==References==
==References==
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