Eye Exams

Unlike a vision screening or other general eye test, comprehensive eye exams evaluate the entire health of the eye. They also help the optometrist or ophthalmologist determine your unique prescription. Comprehensive eye exams should begin as an infant to ensure proper eye and vision development. Ongoing eye health examinations at regular intervals are also important as many eye diseases and vision changes can occur without warning signs.

What Does a Comprehensive Eye Exam Include?

A comprehensive eye exam includes testing with eye charts that help the doctor determine the sharpness of your vision. We will check your visual acuity, or how well you are able to identify details. This is generally done with charts like the Snellen eye chart.

People usually recognize this test, though they may not know it by name. With an “E” at the top and eleven rows of capital letters, the Snellen chart helps the doctor determine your visual acuity. The fourth line from the bottom is “20/20” vision. This means you can see as well at 20 feet as someone with adequate visual acuity should. Some people can see even better than this, but 20/20 is the standard. It generally means you don’t need corrective lenses to drive or do other everyday activities.

If you are unable to read the smaller lines, the doctor will ask you to determine the characters on the higher lines. From there, a starting point is determined for further testing to narrow down your unique prescription.

During a comprehensive eye exam, your eye doctor does much more than just determine your prescription for eyeglasses or contact lenses. Dr. Ton will also check your eyes for common eye diseases, color vision, assess how your eyes work together, and evaluate your eyes as an indicator of your overall health.  

Why it’s Important to Get Regular Eye Exams

Comprehensive eye exams often are the first way chronic systemic diseases such as high blood pressure and diabetes are detected. Regular eye exams are the best way to ensure eye health and maintaining your best vision possible.

Please call us with questions, or to schedule an appointment!

To our Patients,

We hope this message finds you and yours healthy as the COVID-19 coronavirus impacts our community. Please note that our office will have limited hours going forward for eyeglasses and contact lenses pick up and urgent eye care visits only.  Dr. Ton is available through the phone or video conferencing for telehealth visits.  Our office phone number is 281-531-9400 and Dr. Ton's cell phone number is 281-701-7846.

Our weekly schedule will look like this:

Houston Location (please call before coming since the situation changes daily):

  • Mon. 10am - 4pm
  • Tue. 10am - 4pm
  • Wed. CLOSED (as usual)
  • Thu. 10am - 4pm
  • Fri. CLOSED
  • Sat. CLOSED
  • Sun. CLOSED

Pearland Location:  BY APPOINTMENT ONLY

Contact us with any questions. We are here to help you.

IMPORTANT: If you are infected with COVID-19 or think you may have been infected, please contact us before coming in. This way we can instruct you on where to go and how to proceed for the safety of all.

For our CONTACT LENS PATIENTS:  Wearing CL lenses is still safe.  Proper handwashing is essential.  Before applying and removing contact lenses, wash hands thoroughly with soap and water followed by hand drying with unused paper towels.  Clean and disinfect and dispose of your contact lenses as prescribed.   As always, DAILY DISPOSABLE CONTACT LENSES is the most hygienic way to wear contact lenses.  If you want to change your contact lenses to daily disposables during this time, please contact us.  Dr. Ton will extend any expiring contact lenses prescription for 3 months.  We greatly appreciate your re-ordering through our online store, CLICK HERE.

In keeping good health,

Dr. Ton and Staff

Enhance Eye Care