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