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While all physicians at EyeHealth Northwest are trained to diagnose and care for patients with routine retinal problems, there are some situations that require more specialized care. Doctors Jonathan Yoken, MD, Brian T. Chan-Kai, MD, Elizabeth Verner-Cole and Dr. Christopher Aderman are fellowship-trained Vitreoretinal subspecialists who are available for consultation, second opinions, and on-going care.

Most common conditions treated:

  • Macular Degeneration
  • Diabetic Retinopathy
  • Retina Tears
  • Retinal Detachment
  • Retinal Vein Occlusion

As you visit our Retinal Specialists, you will note that oftentimes there can be numerous elements to your exam.
Please familiarize yourself with the following to ensure that you have a comfortable and informed exam:

  1. You need to plan to be dilated for every exam. Retinal Specialists treat the retina which is located at the back of your eye. Dilating the pupils of your eye is the only way the physician can assess the health of your retina effectively.
  2. It is very common to have retina imaging that accompanies your visit to the Retina Specialists. These images help the physician diagnose, treat and monitor various retinal problems.
  3. A typical exam is 2 hours or more due to the extensive nature of retinal testing and frequent emergent nature of some retinal diseases. Please plan ahead of time to have assistance with driving to and from the clinic. Driving with dilated pupils is not encouraged.
  4. Due to the length of the average retinal appointment, EyeHealth Northwest recommends diabetic patients come prepared with a snack or drink to help regulate your blood sugar.


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At EyeHealth Northwest, our Opticians are committed to helping you get the best pair of glasses you have ever had. Opticians are Nationally Certified by the American Board of Opticianry and participate in ongoing continue education courses to deliver the best possible care with the most advanced technology and fashion. We can take stress out of the process, making it enjoyable for you and your family.

With more than 60 years of experience in Portland, we are now driving the Portland look by designing and curating original frame collections based on our optical expertise - Bridge City Spex. We understand the importance of individuality, functionality, and quality. The Bridge City Spex Collections can be found exclusively at our eleven EyeHealth Northwest optical shops.