60. Basic Eye Exam Flashcards
1
Q
Visual Acuity: what does 20/50 vision mean?
A
At 50 ft, the patient sees what a normal person should see at 20ft
2
Q
What are the four types of extraocular muscle misalignment?
A
Esotropia: nasal
Exotropia: temporal
Hypertropia: superior
Hypotropia: inferior
3
Q
What do the following special tests do?
- Perimetry
- Optical Coherence Tomography
- Fluorescein Angiography
A
Perimetry: clinically measure visual fields
Optical Coherence Tomography: non-contact instrument for cross-sectional imaging of eye (light ultrasound) - view all layers of retina to analyze thickness
FA: loock for Blood-retinal barrier; delay in transit time (vascular disease - occlusive/venous obstructive); see AVMs/occlusions
