About Our Services
Our Team
Eye Health By Age
Eye Issues & Diseases
Vision Correction
Contact Us / Find Us
Patient Forms
Job Openings

Drs. Knotek, Hertzberg and Rafferty- Optometrists

29 South Webster Street
St. John's Place
Suite #104
Naperville, IL 60540
(630) 357-6880
FAX (630) 357-6995


Our office is designed for your comfort and our trained, professional staff works as a team to make your visit pleasant, thorough and informative. We have been in Naperville since 1976 and take pride in our ability to provide excellent eye care.

Our Office Hours

Monday - Tuesday8am - 7pm
Wednesday - Friday8am - 5pm
Saturday8am - 1pm

Our Services

When most people think of a vision exam they think of reading letters on an eye chart.  This is only a small part of what we do!

Our standard eye exam includes:

  • Peripheral Vision Test
  • Color Testing
  • Depth Perception Testing
  • OPTOMAP Retinal Exam
  • Tonometry Test to Measure the Pressure in the Eye
  • Eye chart testing for near and far vision
  • Overall health evaluation of the eye

In additon to standard exams, our office treats eye conditions which are typically treated with prescription drops and/or minor procedures such as: pink eye, allergy eyes, glaucoma, corneal ulcers, abrasions, dry eyes, contact lens related infections, styes, and foreign embedded materials. Our doctors are also trained in the management of diabetic retinopathy, age related macular degeneration, cataracts, and early childhood vision examinations. In addition, we volunteer in the nationwide InfantSEE program for early childhood eye health screenings.


You will find a complete selection of high quality, name brand fashion eyewear in our office.  We carry such well known brands as Silhouette, Kate Spade, Armani Exchange, Oakley, Nike, RayBan, DKNY, Elle, OP, Vera Bradley, plus MANY others. Our professional staff members are trained to help you select frames that will not only look good, but will also fit properly and are compatible with your lens prescription.

Contact Lenses

Millions of people choose contact lenses as an alternative or supplement to eyeglasses.  We provide complete professional care from the initial evaluation to follow-up visits.  Many vision conditions are correctable with contact lenses.  We fit for disposable lenses, gas permeable lenses, and soft conventional vial lenses.  We stock many popular brands of lenses in our office including the Acuvue line of products, Ciba, and Bausch and Lomb.


Our office does file claims to most major vision insurance carriers, but it remains your responsibility to be familiar with your policy.  Our filing a claim on your behalf is not a guarantee of coverage.  All of the doctors in our practice are providers for each insurance that we file.  If you have further questions regarding insurance, please call our office.