Cataracts from Radiant Energy/Medications Flashcards Preview

Ocular Disease - Lens > Cataracts from Radiant Energy/Medications > Flashcards

Flashcards in Cataracts from Radiant Energy/Medications Deck (14):
1

Describe infra-red cataracts (Glass blowers cataract)

(How does it occur, what happens to the lens)

- Iris absorbs heat and transfers to lens, "cooking the albumoids"
- Lens turns white, capsules exfloriates, splits and curls up in anterior chamber

2

Describe X-ray, gamma ray cataracts

(How long after onset does cataract occur and how does radiation cause cataract?)

- cataracts develops 1-2 years
- interferes with dividing cells at equator of lens

3

Describe cataracts related to eletric shock

(what type of cataract develops?)

- cortical cataract from heat, concussion or electrolytic dissociation

4

What type of cataract can develop from steroids and phenothiazines (psychological disorders)

- Steriods: develop PSC
- Phenothiazines: sevelop stellated supcapsular cataracts

5

You have a patient that presents with a white lens with the capsule exfoliated, split and curled up in anterior chamber. What is the cause of the cataract?

A. Infra-red
B. X-ray/Gamma Ray
C. Electric Shock
D. Steroids
E. Phenothiazines

A. Infra-red

6

You have a patient that presents with a PSC. Which could cause of the cataract?

A. Infra-red
B. X-ray/Gamma Ray
C. Electric Shock
D. Steroids
E. Phenothiazines

D. Steroids

7

You have a patient that presents with a cortical cataract. Which could cause of the cataract?

A. Infra-red
B. X-ray/Gamma Ray
C. Electric Shock
D. Steroids
E. Phenothiazines

C. Electric Shock

8

You have a patient that presents with a stellated subcapsular cataract. Which could cause of the cataract?

A. Infra-red
B. X-ray/Gamma Ray
C. Electric Shock
D. Steroids
E. Phenothiazines

E. Phenothiazines

9

You have a patient that presents with a cataract caused by interference with dividing cells at lens equator. Which could cause of the cataract?

A. Infra-red
B. X-ray/Gamma Ray
C. Electric Shock
D. Steroids
E. Phenothiazines

B. X-ray/Gamma Ray

10

What kind of cataract can develop if a patient is taking steroids?

A. PSC
B. Lens turns white, capsule exfoliates, splits and curls in anterior chamber
C. Stellated subcapsular cataracts
D. Cataracts develop from interference with dividing cells at equator
E. Cortical Cataracts

A. PSC

11

What kind of cataract can develop if a patient is taking Phenothiazines?

A. PSC
B. Lens turns white, capsule exfoliates, splits and curls in anterior chamber
C. Stellated subcapsular cataracts
D. Cataracts develop from interference with dividing cells at equator
E. Cortical cataract

C. Stellated subcapsular cataracts

12

What kind of cataract can develop if a patient is exposed to electric shock?

A. PSC
B. Lens turns white, capsule exfoliates, splits and curls in anterior chamber
C. Stellated subcapsular cataracts
D. Cataracts develop from interference with dividing cells at equator
E. Cortical cataract

E. Cortical cataract

13

What kind of cataract can develop if a patient is exposed to infrared?

A. PSC
B. Lens turns white, capsule exfoliates, splits and curls in anterior chamber
C. Stellated subcapsular cataracts
D. Cataracts develop from interference with dividing cells at equator
E. Cortical cataract

B. Lens turns white, capsule exfoliates, splits and curls in anterior chamber

14

What kind of cataract can develop if a patient is undergoing radiation therapy (x-ray, gamma rays)?

A. PSC
B. Lens turns white, capsule exfoliates, splits and curls in anterior chamber
C. Stellated subcapsular cataracts
D. Cataracts develop from interference with dividing cells at equator
E. Cortical cataract

D. Cataracts develop from interference with dividing cells at equato