Visionary Optics positioned itself for continued growth with new investments and expansions in several key areas including technology, staff, and customer experience.
Objectives: To determine the relationships between corneal and scleral elevation topography in subjects with corneal ectasias and normal corneas.
Objective: To determine repeatability of measurements using the sMap3D™ Corneo-Scleral Topographer in patients presenting for scleral lens fitting.
Because of the extreme central flattening that can occur post-penetrating keratoplasty (PKP), these cases represent a unique scleral lens fitting challenge to optimize central and optical zone clearances.
This case report illustrates the use of the sMap3D™ virtual precision fit software to design a lens to vault over a localized conjunctival/scleral obstacle.
Virtual fitting designed a 5.5D reverse geometry lens with high accuracy in predicted central clearance and peripheral fit, avoiding multiple stepwise changes and remakes, simplifying lens fitting and reducing patient chair time.
This case illustrates that scleral shape rather than size and weight of the lens can sometimes be the major contributing factor to scleral lens decentration.
Matching Scleral Design with Ocular Shape – Advancements in measurements and manufacturing can improve fitting efficiency and success.
The majority of practitioners fitting scleral contact lenses rely on diagnostic lenses for fitting. Diagnostic lenses primarily allow practitioners to estimate the amount of sagittal depth needed to properly vault the chord diameter of the ocular surface that is being fit.
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.
Objectives: To determine surface coverage of measurements using the sMap3D™ corneo-scleral topographer in patients presenting for scleral lens fitting.
