Hyperopia: Pathogenesis and clinical findings
 • Axial ...
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Description

Hyperopia: Pathogenesis and clinical findings

 • Axial length of eye -> Short axial length of the eye may alter where light rays are focused

 • Abnormal refractive surfaces -> Decreased curvature of one of the refractive structures of the eye (ex. cornea, lens) -> Decreased light convergence

=> Light rays entering the eye converge to a focal point behind the retina

=> Hyperopia, also known as 'farsightedness'

 • Light rays from far objects enter the eye somewhat straight  -> Light rays require less convergence than that of close objects and are focused onto the retina -> Retained distant vision

 • Near objects produce expanding divergent light rays -> Light rays require more convergence than that of distant objects and are focused behind the retina -> Blurry near vision



#Hyperopia #pathophysiology #ophthalmology 
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The Calgary Guide to Understanding Disease
@TheCalgaryGuide
Account created for The Calgary Guide to Understanding Disease - Linking pathophysiology to clinical presentation - http://calgaryguide.ucalgary.ca/
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