Peter Test

Question 1

Name 5 causes of dry eye:

Answer 1

Aging
Systemic Diseases
Medications such as allergy medications
Smokers
Dry environments

Question 2

What are the 3 layers of the tear film? And what produces each layer?

Answer 2

Lipid: meibomian glands
Aqueous: lacrimal glands
Mucin: goblet cells in the conjunctiva

Question 3

Why are high water contact lenses problematic for dry eye patients?

Answer 3

The lenses themselves may draw moisture from tears to maintain hydration.

Question 4

What is the definition of evaporative tear deficiency

Answer 4

is a common form of dry eye disease where the tear film evaporates too quickly from the surface of the eye, often due to an imbalance in the oily outer layer of the tears.

Question 5

What is the Schirmer Test?

Answer 5

Is a measure of the quantity of tears. It is an indirect indicator of tear production.

Question 6

Advantage of soft contact lens

Answer 6

comfortable, easy to get used to, stays in place

Question 7

Disadvantages of soft contact lens

Answer 7

Can dry out, higher infection risk, easily torn.

Question 8

Difference between hydrogel and silicone lenses

Answer 8

Hydrogel is made of water and infused with polymer and is thin. Silicone is gel like highly flexible

Question 9

What is TBUT?

Answer 9

TBUT is Tear Break Up Time, Its the time it takes for tear film to break up following a blink. TBUT less than 10 seconds is dry eye.

Question 10

Treatments for dry eye

Answer 10

Artificial Tears
Punctal Plugs
Conserving Tears
Increasing Tear Production
Eyelid cleaning to decrease inflammation