Pathophysiology Flashcards
1
Q
Dry macular degeneration (3)
A
- Deposition of yellow-whitish material (extracellular lipids,/proteins) = DRUSEN
- In and under the retinal pigment epithelium (drusen)
- Slow progressive atrophy of the local retinal pigment epithelium
2
Q
Wet macular degeneration (3)
A
- Choroidal neovascularization
- Leaking of intravascular serous fluid and blood
- Sudden localised elevation of the macula/ detachment of the retinal pigment epithelium
3
Q
Types of cataract (3)
A
- Nuclear sclerotic
- Cortical
- Posterior subcapsular
4
Q
What is nuclear scleortic cataract? (3)
A
- Involves central part of lens becomes hard
- Due to condensation on lens nucleus
- Deposition of brown pigment in lens
