CRT® SureFIT®. “As Easy As 1, 2, 3”

CRT® SureFit® provides certified practitioners a single-use, 3-lens per eye, fitting and dispensing system which will ensure a high probability of Day 1, first fit success. Currently, corneal reshaping patients qualify for CRT SureFit when they meet the following criteria:

- Flat keratometric readings of 41.00D to 45.00D
- Spectacle refraction (vertexed) of -4.00D and below
(Spherical component of the spectacle Rx must be equal to
or greater than the cylindrical component.)
- Up to -1.00D of corneal cylinder
(Astigmatism should be “with the rule”)

Certified CRT practitioners, with or without a 100-Lens Diagnostic Dispensing System, can order CRT SureFit from Authorized Paragon CRT Laboratories or directly from Paragon Vision Sciences using “K” Readings and Spectacle Rx.

When Your CRT® SureFIT Order Arrives

CRT SureFit lenses are clearly identified, with directions on the proper sequence of fitting. Based upon a patient’s pre-treatment “K” Readings and Spectacle Rx, the first lens in the CRT SureFit Delivery System (lens 1) is the lens that has the highest probability of first fit success. Should the first lens not be dispensable because of improper lens positioning and/ or under-treatment, the second and third lenses are pre-determined parameters (based on 8 years of CRT historical fitting data) that should provide a successful CRT fit for the patient.

Fitting The Patient With CRT® SureFIT. “As Easy As 1, 2, 3”
For Flat “K” Readings Between 41.00D and 45.00D

Step 1: Open the lens labeled OD-1 and/or OS-1 and place on the patient’s eye. A properly fitted CRT lens will show:

- Centered “bull’s-eye” pattern (over the pupil)
- 3mm to 4mm central treatment zone (over the pupil)
- Acceptable edge lift
- Refraction Over Lens (ROL) should be Plano to +0.50D

If the lens(es) labeled OD-1 and OS-1 exhibit the qualities above, dispense the lens(es) and follow-up with the patient the next morning.

Step 2: If the lens labeled “1” shows displacement in a superior or lateral manner, either at the initial trial visit or upon first morning follow-up, remove lens “1” and apply lens “2”.

If lens “2” exhibits the qualities of a properly fit CRT lens, dispense and follow-up the next morning or in 5 to 7 days. If
lens “2” does not center well, call Paragon Vision Sciences’ Consultation Department to determine if a fourth lens is required to achieve a successful fit: 800-528-8279 x 2.

Step 3: If the lens labeled “2” centers well after follow-up but the final treatment result is not achieved, remove lens “2” and apply lens “3”. If lens “3” exhibits the qualities of a properly fit CRT lens, dispense and follow-up in 5 to 7 days. If the final treatment result is still not achieved, call Paragon Vision Sciences’ Consultation Department to determine if a fourth lens is required to achieve a successful fit.