Accepting new patients

Derek J. Louie, M.Sc., O.D., FAAO

Accepting new patients

  • Division Chief, Medical Contact Lens
  • Professor of Ophthalmology, School of Medicine


  • Ophthalmology
  • Optometry

Special focus

  • Contact Lenses (Adult) - Optometry
  • Contact Lenses (Medical)
  • Eye Exams (Adult) - Optometry
  • Optometry

Locations and contact

I see patients at

About me

Medical contact lenses are used for the visual rehabilitation of irregular corneal surfaces. This irregularity may be due to a medical process such as keratoconus, pellucid marginal degeneration or other disorders of the cornea.  Corneal irregularity may also be due to previous ocular surgery such as LASIK, PRK, or corneal transplantation. Permanent scarring due to trauma, thinning of the cornea, or chronic dry eyes may also cause corneal irregularity.

All of these conditions may benefit from the assessment, adjustment and prescription of a medically necessary contact lens. Soft, gas permeable and hybrid contact lenses (a fusion of both gas permeable and soft lens) may be used separately or in conjunction to provide clearer, more stable vision for patients. Many previously unsuccessful contact lens wearers or patients that previously could not be prescribed contact lenses, or could not tolerate contact lenses may benefit from recent innovations in contact lens designs, manufacturing and materials.

Languages spoken

  • English

Education and training

    • B.S., 1992, University of British Columbia
    • M.Sc., 2001, University of Waterloo
    • O.D., 2005, Southern California College of Optometry
  • Residency

    • Oklahoma College of Optometry at Northeastern State University in Tahlequah, Oklahoma
  • Certifications

    • Fellow, American Academy of Optometry
    • Diplomate, American Board of Optometry

Memberships and associations:

  • American Academy of Optometry
Read faculty profile


Before scheduling your appointment, we recommend you contact your insurance company to verify that the OHSU Health location or provider you plan to visit is included in your network. Your insurance company will also be able to inform you of any copayments, co–insurance, or deductibles that will be your responsibility. If you proceed in scheduling an appointment and your health insurance benefits do not participate with OHSU providers, your out of pocket liability may be higher. Visit the billing and insurance section of our site for more information.

Ratings and reviews

Overall: 4.9 out of 5 (414 Ratings, 201 Reviews)

The patient ratings score is an average of all responses to the question "How likely would you be to recommend this provider to your family and friends (on a scale of 0 to 10)" on our nationally-recognized NRC patient surveys.

  1. {{ item.comments[0]['comment'] }}