Visual Defects (Grade 12 NSC Matric Life Sciences): Flashcards
📚Flashcards
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Practise the cards
10 cards from this deck
Vision clarity in myopia
Vision clarity in myopia
Near clear, distant blurry
Light focus point in myopia
Light focus point in myopia
In front of the retina
Lens type correcting myopia
Lens type correcting myopia
Concave lenses
Vision clarity in hyperopia
Vision clarity in hyperopia
Distant clear, near blurry
Light focus point in hyperopia
Light focus point in hyperopia
Behind the retina
Lens type correcting hyperopia
Lens type correcting hyperopia
Convex lenses
Cause of astigmatism
Cause of astigmatism
Irregular shape of cornea or lens
Focal points in astigmatism
Focal points in astigmatism
Multiple focal points
Lens condition in cataracts
Lens condition in cataracts
Lens becomes cloudy or opaque
Advanced cataract treatment
Advanced cataract treatment
Surgery: remove cloudy lens, replace with synthetic one