Clinical: Slit Lamp 2

Question 1

What type of illumination is broad, unfocused beam of light directed towards the eye at an angle?

Answer 1

Diffuse illumination

Question 2

Set up for diffuse illumination:

Answer 2

-low magnification
-Illumination arm at 0-45 degree angle
-max beam height
-unfocus the beam of light with the diffuser on the slit lamp

Question 3

Uses for diffuse illumination:

Answer 3

-general assessment of nearly any ocular structure
-good for examining broad areas of

Question 4

What is illumination where both the beam and microscope are focused in the ams location

Answer 4

Direct illumination (focal)

Question 5

In direct, 6-10x magnification is used to view

Answer 5

Adnexa and lids

Question 6

In direct, 10-16x magnification is used to observe:

Answer 6

-conjunctiva
-cornea
-lens
-anterior vitreous

Question 7

What can vary depending on the type of direct illumination?

Answer 7

Beam height and width

Question 8

What is the angle of illumination arm for direct illumination?

Answer 8

30-60 degrees angle from microscope and beam in click

Question 9

What are the direct illumination types?

Answer 9

-optic section
-parallelepiped
-broad beam
-conical beam

Question 10

Optic section beam size is..

Answer 10

Thin, 1mm wide beam

Question 11

Which type of direct illumination creates a cross section of the tissue being examined?

Answer 11

Optic section

Question 12

What are the uses for optic section direct illumination?

Answer 12

-detailed, layer by layer evaluation
-depth and elevation of tissue
-any tissues, especially conjunctiva, cornea, and lens

Question 13

What type of direct illumination creates a block of light that illuminates the tissue?

Answer 13

Parallelepiped

Question 14

What size is the parallelepiped beam?

Answer 14

2-3mm wide beam

Question 15

parallelepiped is good for which tissues?

Answer 15

Any but especially cornea and crystalline lens

Question 16

What type of direct illumination is used for examining larger areas of opaque tissue?

Answer 16

Broad beam

Question 17

What is the shape of broad beam?

Answer 17

“Wide parallelepiped”, 4-6mm width, full height

Question 18

What type of direct illumination is used for assessing the anterior chamber for inflammation?

Answer 18

Conical beam

Question 19

What is the shape of the conical beam?

Answer 19

1-2mm wide, 1-2mm tall
Small, square/rectangular or circular beam

Question 20

What are the goals of the slit lamp exam?

Answer 20

-going tissue by tissue
-comprehensive evaluation

Question 21

What is the standard illumination and magnification when setting up an exam?

Answer 21

Low mag, bright illumination

Question 22

What illumination type do you use to begin the exam and what does it look like?

Answer 22

Direct illumination, 45 degrees angle angle, full height beam, 2-4mm wide, white light, moderate brightness

Question 23

What are three keys for slit lamp exams?

Answer 23

-examine all of one eye before moving on
-work anterior to posterior
-always have one hand on joystick and one hand on the illumination arm

Question 24

Illumination for examining lids and lashes?

Answer 24

Low-moderate brightness, diffuse or broad beam

Question 25

Do you examine the patients open lashes first or closed lashes?

Answer 25

Closed

Question 26

What are you looking at while examining the lower lid and lashes?

Answer 26

-Tear meniscus -lid apposition to the globe -meibomian gland openings

Question 27

Illumination while looking at conjunctiva and sclera?

Answer 27

Low-moderate brightness, broad or diffuse beam

Question 28

While looking at the lower conjunctiva and sclera, what else should you look at?

Answer 28

Inferior puncta

Question 29

Illumination for cornea and tear film?

Answer 29

Narrow parallelepiped, bright beam

Question 30

magnification for cornea and tear film?

Answer 30

Low to medium (10-16X)

Question 31

After observing the cornea and tear film once through you should…

Answer 31

Narrow the beam to an optic section and scan the cornea again

Question 32

What technique is used to assess the openness of the AC angle and depth of the anterior chamber?

Answer 32

Van herick

Question 33

Magnification and Illumination for assessing the angle and chamber?

Answer 33

16x, Optic section, bright light

Question 34

Illumnation for assessing iris?

Answer 34

Wide parallelepiped at a 30-45 degrees angle angle

Question 35

Magnification from assessing the iris?

Answer 35

Low to medium (10-16x)

Question 36

What are you looking for while assessing the iris?

Answer 36

-pupil constriction -entire iris surface - iris retro illumination

Question 37

Illumination for assessing crystalline lens?

Answer 37

Narrow parallelepiped, beam angle at 30-45 degrees

Question 38

magnifation for assessing the crystalline lens?

Answer 38

10-16x

Question 39

After veiwing the lens you should go back and…

Answer 39

Repeat it with an optic section

Question 40

Illumination for assessing anterior vitreous?

Answer 40

Narrow parallelepiped, beam angle at 10-20 degrees

Question 41

Magnification wile assessing the anterior vitreous?

Answer 41

Low to medium (10-16x)

Question 42

If your beam width is large, your illumination should be

Answer 42

Dimmer