Uvea Flashcards
What happens to aqueous humor formation with age?
Decreases
Does ciliary muscle contraction decrease with age?
No
Ciliary muscle contraction remains unaffected with aging.
What is presbyopia and what causes it?
Loss of accommodation with age due to changes in the lens
Presbyopia is a common condition that affects the ability to focus on nearby objects.
What are the functions of the choroid?
- Provides nutrients to the outer layers of the retina
- Contains pigment that absorbs excess light
- Contains suprachoroidal space for nerves and arteries
- Establishes a protein gradient for absorption of excess water
The choroid plays a crucial role in ocular health by supporting the retina and regulating fluid balance.
What age-related changes occur in Bruch’s membrane?
Increases in thickness and accumulation of drusen
Drusen are yellow deposits under the retina and are associated with age-related macular degeneration.
How does the choriocapillaris change with age?
Decreases in thickness
The choriocapillaris is a layer of blood vessels that supplies blood to the outer retina.
What overall change occurs in choroidal thickness with age?
Decreases
This decrease can affect retinal health and function.
