Podcast
Questions and Answers
Where is the apparent light source located when concave light rays are created using a retinoscope?
Where is the apparent light source located when concave light rays are created using a retinoscope?
- To the right of the retinoscope
- Above the retinoscope
- In front of the retinoscope (correct)
- Behind the retinoscope
What type of light rays are created when the apparent light source is behind the retinoscope?
What type of light rays are created when the apparent light source is behind the retinoscope?
- Collimated light rays
- Divergent light rays
- Concave light rays
- Parallel light rays (correct)
What provides the current source in a retinoscope?
What provides the current source in a retinoscope?
- Battery in the handle (correct)
- Eye wells
- Sleeve
- Mirror
At what angle should the doctor stand in relation to the patient's line of sight during retinoscopy?
At what angle should the doctor stand in relation to the patient's line of sight during retinoscopy?
What does the reflex observed during retinoscopy describe?
What does the reflex observed during retinoscopy describe?
What is the main purpose of an autorefractometer during an eye examination?
What is the main purpose of an autorefractometer during an eye examination?
Why is near infrared radiation (NIR) used in autorefractors?
Why is near infrared radiation (NIR) used in autorefractors?
How does an autorefractometer calculate the vision correction a patient needs?
How does an autorefractometer calculate the vision correction a patient needs?
What does the autorefractor measure in at least three meridians of the eye?
What does the autorefractor measure in at least three meridians of the eye?
How does the autorefractor determine when a patient's eye properly focuses an image?
How does the autorefractor determine when a patient's eye properly focuses an image?
What is a main disadvantage of using near infrared radiation (NIR) in autorefractors?
What is a main disadvantage of using near infrared radiation (NIR) in autorefractors?
