Podcast
Questions and Answers
What is a characteristic of a bad contact lens fit?
What is a characteristic of a bad contact lens fit?
- Lens movement on blink
- Stable sagittal depth
- Immobility and associated inflammation (correct)
- Comfortable vision
Why is the selection of BOZR considered pot-luck?
Why is the selection of BOZR considered pot-luck?
- Because it depends on the settling time
- Because it depends on the material used
- Because it depends on the diameter of the lens
- Because it depends on the sagittal depth of the lens (correct)
What happens to the lens during the initial 5 minutes of settling?
What happens to the lens during the initial 5 minutes of settling?
- It remains unchanged
- It becomes looser
- It settles to its optimal position (correct)
- It becomes tighter
What is the result of natural loss of excess tears during lens fitting?
What is the result of natural loss of excess tears during lens fitting?
What is the effect of temperature rise on the lens during settling?
What is the effect of temperature rise on the lens during settling?
What happens if the lens has not settled during evaluation?
What happens if the lens has not settled during evaluation?
What is the critical dimension of the lens?
What is the critical dimension of the lens?
What is the result of a larger lens overlapping onto the sclera?
What is the result of a larger lens overlapping onto the sclera?
What is the typical movement of the lens on blink?
What is the typical movement of the lens on blink?
What is the result of vertical lens sag?
What is the result of vertical lens sag?
What is the primary purpose of the PUSH-UP test in assessing the fit of a contact lens?
What is the primary purpose of the PUSH-UP test in assessing the fit of a contact lens?
What is the significance of a lens moving 0.25mm – 0.50mm in the Bo Movement scale?
What is the significance of a lens moving 0.25mm – 0.50mm in the Bo Movement scale?
What is the recommended minimum movement of a lens for extended wear?
What is the recommended minimum movement of a lens for extended wear?
What is the primary advantage of made-to-order lenses?
What is the primary advantage of made-to-order lenses?
What is the purpose of the Wolffsohn scale in assessing the fit of a contact lens?
What is the purpose of the Wolffsohn scale in assessing the fit of a contact lens?
What is the significance of a scleral centration overlap of > 0.5 -1.0mm between nasal and temporal lag?
What is the significance of a scleral centration overlap of > 0.5 -1.0mm between nasal and temporal lag?
What is the recommended approach to adjusting the fit of a soft contact lens?
What is the recommended approach to adjusting the fit of a soft contact lens?
What is the primary concern with fitting soft torics?
What is the primary concern with fitting soft torics?
What is the CAAS/LARS rule used for in fitting soft torics?
What is the CAAS/LARS rule used for in fitting soft torics?
What should you expect to see when inserting a compensated axis in a soft toric lens that has rotated?
What should you expect to see when inserting a compensated axis in a soft toric lens that has rotated?
What is the primary purpose of conducting a slit lamp examination in contact lens fitting?
What is the primary purpose of conducting a slit lamp examination in contact lens fitting?
What is the effect of a larger lens diameter on the movement of the lens?
What is the effect of a larger lens diameter on the movement of the lens?
What is the significance of the sagittal depth of the lens?
What is the significance of the sagittal depth of the lens?
What is the recommended initial settling time for a contact lens?
What is the recommended initial settling time for a contact lens?
What is the purpose of over-refraction in contact lens fitting?
What is the purpose of over-refraction in contact lens fitting?
What is the result of an immobile contact lens fit?
What is the result of an immobile contact lens fit?
What is the purpose of the Duochrome assessment in contact lens fitting?
What is the purpose of the Duochrome assessment in contact lens fitting?
What is required to properly evaluate the fit of a contact lens?
What is required to properly evaluate the fit of a contact lens?
What is the characteristic of a well-fitting contact lens?
What is the characteristic of a well-fitting contact lens?
What is the purpose of recording the fit of a contact lens?
What is the purpose of recording the fit of a contact lens?
What is the primary concern with a soft immobile lens?
What is the primary concern with a soft immobile lens?
What is the significance of a scleral centration overlap of < 0.5 -1.0mm between nasal and temporal lag?
What is the significance of a scleral centration overlap of < 0.5 -1.0mm between nasal and temporal lag?
What is the effect of friction on lens movement?
What is the effect of friction on lens movement?
What is the typical approach to adjusting the fit of a soft contact lens?
What is the typical approach to adjusting the fit of a soft contact lens?
What is the significance of a lens moving > 0.25 mm – 0.50 mm in the Bo Movement scale?
What is the significance of a lens moving > 0.25 mm – 0.50 mm in the Bo Movement scale?
What is the purpose of assessing the fit of a lens after several hours of wear?
What is the purpose of assessing the fit of a lens after several hours of wear?
What is the significance of a keratometer mires stable on blink?
What is the significance of a keratometer mires stable on blink?
What is the primary advantage of using a better wetting lens?
What is the primary advantage of using a better wetting lens?
What is the significance of a lens that requires removal in an emergency?
What is the significance of a lens that requires removal in an emergency?
What is the primary concern with fitting soft torics?
What is the primary concern with fitting soft torics?
