HD
AO
Multifocals
Misc
100
What is the A-Constant of the HD
118.8 (for new starts)
100
What is the A-Constant for the AO
119.1
100
What aberrations are due to pupil size and lost/scattered light
Halos and Glare
100
What could happen if the capsularhexis is made too small?
anterior phimosis
200
What is the ACD of the HD
5.43
200
What is the targeting in the nomogram for the AO
Distance Eye-Predict plano- -0.25 Near eye -0.25 to -0.50
200
What is the appropriate pupil size needed for functionality of an aspheric ReSTOR
4mm
200
What are the two mechanisms of action for Crystalens
Vault and Arch
300
What makes near vision better than the Five-O or AO
An optical enhancement in the 1.8 mm center of the optic
300
What is the ACD of the AO
5.61
300
How many focal zones does the ReSTOR have
2
300
What is the launch year of the first Crystalens
2003
400
What formula is used for post-refractive patients?
Holladay 2
400
What does the AO have the advantage over the Five-O but not the HD
Near vision
400
What does the ReSTOR lable warn patients of
Unwanted images and caution while driving at night
400
How many eyes are required for A-constant personalization?
minimum 25 eyes
500
The basic message of the HD is
To improve near vision without compromise to intermediate, distance or quality of vision
500
When is the SRK-T formula used (for all Crystalens)
For eyes 22.01mm or longer
500
How many years of long-term data do we have with the Crystalens
7 years
500
Who created the Crystalens
Stuart Cummings
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