Flashcards in Bits & Pieces Deck (3)
Focussing CLOSE UP So: -> Parasympathetic Innervation -> Contraction of ciliary muscle -> Relaxes suspensory ligaments -> Less tension on lens -> Lens shortens and fattens -> Greater bending of light -> Focusses close up
What lens would be used to correct hyperopia vs myopia?
- Image focusses behind retina
- > Convex lens to increase bending of light
- > Image focusses in front of retina
- Concave Lens to reduce bending
what type of neuron is involved in sight>