Purpose
The case study describes the efficacy of a new design of hybrid contact lens for orthokeratology for reduction of both myopic and high astigmatic refractive errors.

Significance
The new design of hybrid lens described in the case study was effective in reducing myopic and astigmatic errors up to 3.0 diopters. This provides an alternative approach for orthokeratology and improvement for treatment of high astigmatism.

Case Study
A 34-year-old female presented with the measurements detailed in Table 1 Pre-Treatment.
The new design of Ortho-k hybrid contact lens is a 5- curve, reverse geometry and tangential landing design incorporating patient’s eccentricity, HVID, and central corneal measurements. Overall lens diameter is 14.5mm with treatment zone of 5mm.

Patient was instructed to wear the Ortho-k lens during the day like a standard hybrid lens. At 1 week follow up, the lens provided a central treatment zone. No corneal staining was observed with slit lamp evaluation. The patient continued to wear the lenses full time for 4 weeks with a weekly follow up. No corneal staining was  observed with slit lamp at 4 weeks follow up.

Topography of both eyes indicated mid-peripheral cornea steep area surrounding a central corneal flattened area. Patient is still being monitored for progress and stability.