Orthokeratology lens increases likelihood of first-fit success

It’s no secret that specialty contact lens fits can be a challenge. To enable optometrists to overcome this challenge in myopia patients, while allowing them to manage and temporarily correct the refractive condition, Art Optical offers the MOONLENS, an FDA-approved option for orthokeratology. (See artoptical.com/moonlens .)

Here, ODs who have experience in using the lens discuss its attributes, ideal candidates, and the tools Art Optical provides to enhance the probability of first-fit success.

ATTRIBUTES

The MOONLENS has a progressive lens design and is approved for up to -5.00 D of myopia correction and 1.50 D astigmatism correction. A toric landing can be made to best align with different depths between the principle meridians of the eye, the company says.

Additionally, three optic zone choices (5.0 mm, 5.5 mm, and 6.0 mm) come standard, so the optic zone can be adjusted to aid in increasing or decreasing the patient’s treatment zone, Art Optical says.

“I have been able to go back retrospectively and use the topography’s calipers to measure the real-world treatment zones achieved,” points out Andrew Brauer, OD, of Elgin Family EyeCare, in Elgin, Ill. “You can literally see from just the topography whether you used a back optic zone of 5.0 mm, 5.5 mm, or 6.0 mm, with excellent readability.”

Further, the MOONLENS provides a base curve, reverse curve depth, and alignment zone angle for stability, centration, and comfort, respectively, the company says.

IDEAL CANDIDATES

Dr. Brauer says the MOONLENS is his choice for any child who has over -1.00 D of myopia.

“The peripheral myopic defocus achieved is proportional to the baseline myopia, so baseline myopia under -1.00 D may not be strong enough for the lens to stop progression,” he explains.

He adds he has at least a few kindergarteners currently using the lens.

TOOLS

The online MOONLENS Calculator (artoptical.com/mooncalculator ), Art Optical’s consultation team (artoptical.com/consultation-services ), as well as downloadable PDFs for fitting assistance, and several videos and webinars are available to help optometrists achieve first-fit success.

Joseph DiGiorgio, OD, of Vision Source Signature Eye Care, in Orland Park, Ill., says that the calculator is easy to use, as it provides specific fields, such as “Patient Rx,” “Diameter,” “Flat and Steep Eccentricity” and more. Also, a fitting guide is provided for review.

“Additionally, in using our topographer, when the sagittal differential is above a certain value (30 μm), the MOONLENS calculator seamlessly goes to a toric design to enhance centration for an optimal result,” Dr. DiGiorgio points out.

Stephanie DiGiorgio, OD, also of Vision Source Signature Eye Care, in Orland Park, Ill., notes that inputting the parameters to the online calculator and avoiding long in-chair fitting sessions has been beneficial, as it saves both the patients and the OD time.

“Around 90% of the time, we get good centration on the first try,” she points out.

Should additional fitting guidance be needed, Dr. Brauer says doctors can work closely with Art Optical’s consultation team, who can “back you up if a fit becomes tough,” he says.

Also, the webinar “Behind MOONLENS Proven Success – Part 1” is available at Vimeo.com/414051513 .

Become certified at artoptical.com/mooncertification . OM