quiz 1

Question 1

Science of examination with a slit lamp is called ____ as it allows in vivo study of living tissues at high mag

Answer 1

Biomicroscopy

Question 2

Slit lamp had the advantage of examining the eye in ___

Answer 2

3D

Question 3

Focus oculars w focusing rod and set mag to ___

Answer 3

Low

Question 4

Focus the slit beam on the eye by moving the ____ towards or away from pt

Answer 4

Joystick

Question 5

adjust chin rest so pt ___ lines up w black marker on head rest q

Answer 5

Temporal canthus

Question 6

____ is for basic exam

Answer 6

White light

Question 7

_____ is for tonometry, TBUT, and evaluating surface irregularities w fluorescein

Answer 7

Cobalt blue filter

Question 8

_____ is for retinal exam to show better contrast also used for rose bengal staining of cornea and conjunctiva

Answer 8

Red free (green)

Question 9

Reasons to perform slit lamp exam

Answer 9

1. Examine eye for pathology
2. Measure IOP
3. Checking pressure to ensure safety of dilation (van herik)

Question 10

Sometimes a ___ of multiple light techniques achieve best examination

Answer 10

Combo

Question 11

___ is when light is directly on area/object

Answer 11

Direct illumination

Question 12

____ technique that uses another structure to transfer/reflect light to focus another structure

Answer 12

Indirect illumination

Question 13

____ when you have a second light source found on slit lamp camera that gives overall lighting of large general area

Answer 13

Diffuse illumination

Question 14

______ is light from slit beam coming into focus @ same distance as biomicroscope is focused on object

Answer 14

Slit lamp illumination

Question 15

Forms of direct illumination

Answer 15

Optical sectioning 
Broad beam illumination
Tangential illumination
Pinpoint illumination 
Specular reflection

Question 16

Optical sectioning

Answer 16

Narrow slit beam @ 30-45 degree angle

Question 17

Methods of assessing angles

Answer 17

Van Herrick
AC depth estimate
Penlight
Gonioscopy

Question 18

Van herrick evaluation

Answer 18

Optical section
angle to 60 degrees
Both temporal and nasal

Question 19

VH 1 VH2

Answer 19

Need to be checked by the DR!!

Question 20

Gonioscopy

Answer 20

Test that uses gonio lens to view a patients angles

Question 21

Broad beam illumination

Answer 21

Used to view dystrophies/degenerations affecting large area of cornea to see width and extent of corneal ulcer or defect

Question 22

Tangential illumination

Answer 22

Shows texture & depth using varying slit beam widths at extreme angle from side

Question 23

Pin pint illumination

Answer 23

Short and narrow beam that shows cells and flare

Question 24

Specular reflection

Answer 24

Angle of slit beam is equal to angle of oculars reflecting light off cornea or anterior lens capsule

Question 25

Forms of indirect illumination

Answer 25

Proximal illumination
Sclerotic scatter
Retroillumination from iris and fundus
Iris transillumination

Question 26

Proximal illumination

Answer 26

Uses light shone next to pathology scattering around & behind pathology increasing contrast making a silhouette

Question 27

Sclerotic scatter

Answer 27

Broad slit beam decentered & directed @ limbus scattering light trough cornea and out other side of limbus

Question 28

Direct retroillumination

Answer 28

Bounces light @ an angle off iris to view corneal pathology in front of light while in focus on cornea