A/MF
KC
PS
ClearKone
Troubleshooting
100

A patient presents with K's of 41.00/44.75. The practice informs you that the patient has keratoconus. If fitting with SynergEyes A the initial BC would be…

7.5

100

An office calls in requesting a KC lens. They only can supply you with auto K’s which are 46.75/53.00. What would be your initial BC selection?

6.3

100

The PS lens is designed for…

Oblate corneas

100

In fitting the ClearKone lens, the most common source of failure is…

Over-vault

100

A patient with forme fruste KC has been fit with SynergEyes A. The Dr. informs you that the NaFl pattern exhibits a bubble superiority, as well as touch inferiorly. Staying with SynergEyes A, what adjustment might you try?

Steeper BC

200

In SynergEyes A the relationship between the "standard" skirt curves and the BC's is...

1.0 D and 1.3 D flatter than BC

200

Compared to SynergEyes A, the GP in The KC design is…

Aspheric

200

The PS lens is unique in that it allows us to adjust for three different fitting variables. Name them…

BC, SC, Lift

200

When initially instructing a patient on the insertion of the ClearKone lens, the most important thing to impress upon them is…

Completely filling the lens with PF saline

200

A patient who has been fit with ClearKone is constantly aware of the lens. NaFl evaluation shows a pattern the same color from edge to edge. What adjustment would you consider?

Flatten the skirt

300

SynergEyes A Multifocal offers two zone sizes. What are they, and how are they utilized?

1.9mm and 2.2mm - Oftentimes used in a modified mono with smaller zone on dominant eye and larger zone on nondom

300

An office calls in requesting a KC lens with parameters of 6.2/8.1. What would you tell them?

Those parameters are not available. We could do a 6.3/8.2 or a 6.1/8.2. Ask about K's and help them figure out which BC would be most appropriate.

300

How would one determine the initial BC and skirt curve of a PS lens?

BC = mean K, SC = 8.6

300

A quick test for over-vault when observing the ClearKone under the slit lamp with NaFl is to check for…

Pupil reflex

300

A patient is fit in a KC lens with initial parameters of 6.3/8.2. The Dr. states that there is mild touch over the cone, but bearing at the GP/skirt junction. What lens would you reorder?

6.3/7.9

400

The addition of enhanced profile to a standard thickness SynergEyes A lens would increase the overall lens thickness by…

90 microns

400

In fitting SynergEyes KC, with the base curve remaining the same, steepening the skirt curve might also…

Increase sagittal height/clearance

400

The lift curve in the PS lens design extends out to…

9mm

400

One of the top ten tips for fitting ClearKone is to fit…

From the inside-out

400

In fitting a PS lens, an arc-shaped bubble is located near the junction. What initial adjustment would you consider?

Decrease the lift

500

The overall fit of a SynergEyes A lens seems good, yet the patient complains of mild awareness. You could consider…

Peripheral Blend

500

The best way to evaluate the fit of a KC lens is…

With NaFl pattern

500

The PS BCs range from ______ to ______ in ______ increments...

7.2 -9.0 in 0.2mm increments

500

ClearKone was the first hybrid lens to be fit by _____ rather than ____

Vault/sag rather than curvature

500

In evaluating a PS fit, the Dr. states that there in central clearance with peripheral touch/bearing. What adjustment would you suggest?

Increase lift