Visionary Optics recently introduced the Latitude scleral lens. According to the company’s research, most patients’ corneal and scleral shapes do not conform to scleral lens designs based upon peripheral curve systems. Its answer to this dilemma was to create the Latitude lens, which has no peripheral curve system; rather, it is a freeform lens designed to contour uniformly to each eye. The company says that it is the first such lens that is completely custom made to exactly fit the corneal and scleral surfaces based upon scleral topography (sMap3D) measurements.
The Latitude lens conforms to the scleral shape at the landing zone and is designed to even out the central, midperipheral, and limbal clearances regardless of the degree of corneal irregularity, including asymmetric ectasias in which uneven clearances are especially obvious, according to the company. Visionary Optics says that this uniformity of lens-to-ocular-surface clearance is critical to ocular surface health because it ensures that oxygenation to the cornea and limbus is optimized. Data required to fit the lens is based upon a no-ocular-touch, three- to five-minute corneal-scleral topography examination.
I recently talked with three practitioners who are actively fitting the Latitude scleral lens in their practices. Here we share their clinical experiences.