Normal Vision Changes with Aging Flashcards

1
Q

Loss of accommodation

A

Can’t focus on close targets

Ciliary muscles lose tone; lens loses flexibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Loss of low-contrast acuity

A

Loss of acuity under glare/low light; small targets easily missed
Decreased transmission of ocular media; decrease pupil size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Increased sensitivity to glare

A

Discomfort in low glare; decrease acuity in high glare

Increase light scatter in cornea, lens, vitreous humor, retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Increase difficulty with dark adaptation

A

Hard to move from bright to dim environments; fall risk

Decrease ocular transmittance and papillary miosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Loss of colour discrimination

A

Darks and pastels

Decrease pupil diameter; decrease light transmission in lens; change in photoreceptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Loss of attentional visual field

A

Balance and mobility problems, motor vehicle accidents

Decrease in higher order visual processing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Increased difficulty with reading

A

Slow speed, text navigation decreases

Attentional visual field, low contrast acuity, slower saccadic performance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly