Eye

Question 0

Which part of the eye is vulnerable to injury from UV and visible wavelengths lasers?

Answer 0

Retina and fovea

Question 1

Which part of the eye is most vulnerable to injury from infrared lasers?

Answer 1

Lens and cornea

Question 2

Keratoconjunctivitis is caused by?

Answer 2

By welder’s flash - a result of exposure of eyes to UVB and UVC

Question 3

Glassblower’s cataracts are normally experienced by workers exposed to what form of radiation?

Answer 3

Infrared radiation

Question 4

Excessive exposure to UV for a short period of time can result in?

Answer 4

Welder’s flash -
Red eyes, foreign body sensation, gritty feeling in the eye, excessive tears. This condition is usually temporary and rarely causes permanent damage.

Question 5

Approximately ?% of the male population has some form of color blindness ?

Answer 5

8%

1% in women

Question 6

Welder’s flash, should not give ?

Answer 6

Long-acting topical anesthetics

• delay corneal healing
• can lead to corneal perforation

Question 7

Conjunctivitis may result from a welding arc due to ?

Answer 7

UV radiation

- The wavelength responsible for conjunctivitis are 270-280 mm in the ultraviolet area of the electromagnetic spectrum