2500L

Question 1

When contact lenses are being fit the slit lamp is indispensable for determining?

Answer 1

Whether the fit of the lens is acceptable, too tight, or too loose.

Question 2

The lens/cornea relationship is observed with the aid of?

Answer 2

Sodium fluorescein

Question 3

Sodium fluorescein is?

Answer 3

A fluorescent diagnostic solution

Question 4

Fluorescein patterns show?

Answer 4

If a lens is steep or flat if corneal astigmatism is present and if so if the astigmatism with the rule or against the rule

Question 5

What does the slit lamp do?

Answer 5

Show problems with the cornea, conjunctiva, lids, and lashes

Question 6

What are the two main parts to a biomicroscope?

Answer 6

A light source and a binocular microscope

Question 7

What type of magnification is used at first when using the biomicroscope?

Answer 7

Low magnification usually 6x or 10x.

This provides a greater depth of field and a larger field of view

Question 8

Most slit lamp illumination procedures will b done with an angle of?

Answer 8

45-50 degrees between the beam and the microscope

Question 9

The most common slit lamp illuminations used to evaluate the physical fit of a contact lens are?

Answer 9

Direct (focal)

Diffuse

Question 10

The illuminations used to evaluate contact lens related problems are?

Answer 10

Indirect
Retro
Sclerotic scatter

Question 11

The beam of the light and the microscope are focused directly on the area being examined

Answer 11

Direct illumination

Question 12

The light is spread out over the cornea

Answer 12

Diffuse illumination

Question 13

The normal cornea transparent due to a pumping action which creates a proper fluid balance. Which layer of the cornea is responsible for maintaining this function

Answer 13

Endothelium

Question 14

The distance between the upper and lower eyelid Margins is called the

Answer 14

Palpebral fissure

Question 15

A normal tear break up time is

Answer 15

12-15 seconds

Question 16

What are contraindications to soft contact lenses?

Answer 16

Severe conjunctivitis
Acute inflammation of the anterior segment of the eye
Insufficient lacrimal function

Question 17

Fluorescein which has been instilled into the eye best illuminated by

Answer 17

Cobalt light

Question 18

Squamous similar to scalp dandruff lashes partially covered by scales
Ulcerative; bacteria infection usually by staphylococci. Lids red tender and sore w/ bleeding ulcers

Answer 18

Blepharitis

Question 19

The distance between the upper and lower eyelid margins is called the

Answer 19

Palpebral fissure

Question 20

A chronic inflammation of one of the meibomian glands of the tarsal plates (blockage)
The gland swells w/ a mixture of granulation cells & secretions there is no bacterial infection

Answer 20

Chalazion

Question 21

An acute inflammation of a sebaceous glands caused by a bacterial infection
It appears as a reddish boil like elevation which developed a yellowish white top

Answer 21

Hordeolum or stye

Question 22

An outward turning of the eyelid

Answer 22

Ectropian

Question 23

When recording lower lid position on a record form a -2 mm notation indicates

Answer 23

The lower lid margins is 2mm below the lower limbus

Question 24

An inward turning of the gelid so that the margin rests against the eye

Answer 24

Entropian

Question 25

Which medication may contribute to an insufficient tear film?

Answer 25

Antihistamines

Question 26

Inversion of the eyelashes resulting in impingement on the eyeball

Answer 26

Trichiasis

Question 27

A blew filled with clear or milky fluid. They vary in size from pinhead to several millimeters
Usually caused by chronic irritation of the conjunctiva or blockage of a gland of Krauss duct

Answer 27

Conjunctiva cyst

Question 28

Nevi or moles are benign epithelial tumors
A congenital discoloration due to pigmentation
Note size and location

Answer 28

Nevis

Question 29

The loose attachment of The conjunctiva to the sclera allow blood from the broken vessel to spread between the two layers
Usually caused by local trauma but can also be caused by systemic vascular disease such as a hypertension

Answer 29

Subconjunctiva hemorrhage

Question 30

A yellowish triangular thickening of the bulbar conjunctiva

Located nasal or temporal to the cornea

Answer 30

Pinguecula

Question 31

Triangular Fold of growing membrane that may extend over the cornea from the Sclera

Answer 31

Pterygium

Question 32

Reduced function of lacrimal glands
Excessive evaporation of tears
Mucin deficiency

Answer 32

Keratitis sicca

Question 33

An opaque white ring near the corneal periphery

Seen an older person due to fat deposits

Answer 33

Arcus Senilis

Question 34

A Progressive conical thinning of the central area of the cornea. Myopia and irregular astigmatism increase as the condition progresses
Rigid contact lenses will correct the irregular astigmatism
May require a corneal transplant

Answer 34

Keratoconus

Question 35

The most severe form of corneal Edema
Involve all layers of the cornea
Results from a diseased endothelium
Therapeutic soft contact lens used to manage pain

Answer 35

Bullous Keratopathy

Question 36

A pathological loss of substance of the surface of the cornea due to a progressive erosion of tissue

Answer 36

Ulcer

Question 37

A lack of oxygen which is indicated by various changes in the cornea

Answer 37

Cornel hypoxia