Corneal Refractive Therapy

Corneal Refractive Therapy (CRT) or Orthokeratology (Ortho-K)

We welcome you into our Corneal Refractive Therapy (CRT) treatment program. You are beginning an exciting program designed to reduce and/or eliminate your dependency on eyeglasses or contact lenses.

The CRT lenses are worn every night while you sleep to help re-shape your cornea. During the day, your myopia or nearsightedness is reduced and eliminated, so you are not wearing anything and still able to see!

This treatment is ideal for all ages, especially in young children whose prescription is changing drastically from year to year or active adults who prefers not to wear anything during the day, either due to dryness or convenience.

​Ask our doctor about Myopia Treatment and how CRT lenses will benefit you.

What is Corneal Refractive Therapy?

How does CRT work?

Insertion & Removal video

Instruction to Wearer

CRT Care Guide

Recommended solution: uses daily to soak & disinfect your lenses

  • ClearCare hydrogen peroxide, Boston Simplus, or Unique pH multi-purpose

Drops: Oasis Tears Plus, Celluvisc artificial tears, Boston Simplus

  • instill into CRT lenses before inserting

  • instill drops into eyes before removal

Rinsing solution:

  • non-preserved saline sterile solution or multi-purpose solution

Enzyme cleanser: uses twice a month or as needed

  • Progent cleanser, Optimun cleanser


  • always instill lubricating drops prior to insertion & removal

  • insert CRT lenses right before going to bed

  • need to have at least 6 hours nightly treatment

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