Contex OK Lens

The Contex OK^® Lens and Bausch & Lomb Vision Shaping Treatment™

The world’s #1 overnight orthokeratology lens is now overnight FDA approved. The OK^® E-System is the premier Bausch & Lomb Vision Shaping Treatment™ (VST) lens design. FDA approved, safe and reversible, More…

• "Custom Designed" to Each Individual Cornea
• Reduces 5 Diopters of Myopia
• Proven Overnight Design
• Inventory Set Recommended

Inventory Sets with
OK^® Lens Selection
Software Available

Understanding Modern Ortho-K: The advanced OK^® E-System proportionate lens design allows you to custom build a lens that will reduce up to five diopters of myopia gently and precisely molding the central epithelium while your patients sleeps.

Example: CK: 43.00/44.00

Refraction: -5.00

Eccentricity Value = .5

OK^® E-System Design Code: 43.00/-5.00(.5e) / 9.06 / 10.6 / +1.00

If the Lens is Tight: Raise the e-value
OK E: 43.00/-5.00(.55e)	.05 loosens the fit by about 11 microns
OK E: 43.00/-5.00(.6e)	.1 loosens the fit by about 22 microns

If the Lens is Loose: Lower the e-value
OK E: 43.00/-5.00(.45e)	.05 tightens the fit by about 11 microns
OK E: 43.00/-5.00(.4e)	.1 tightens the fit by about 22 microns