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Located in the Brownsville, TX Walmart on corner of
Hudson Blvd and E. Ruben Torres Blvd (FM 802)

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Call (956) 269-9963 Request Appointment Online

Home » Eye Care Services » Advanced Technology

Advanced Technology

Dr. Diaz in Brownsville, TX uses cutting-edge technology to assess your eyes. Many eye diseases, if detected at an early stage, can be treated successfully without total loss of vision.


phoropter woman smileThe phoropter, is advanced technology used to measure a patient's glasses prescription, strength of the focusing system, alignment of the eyes and muscle balance between the two eyes.

By having you look through the phoropter at a visual reference, image, or the “Big E” chart (the Snellen chart), our Brownsville eye doctor will help guide you toward lenses that correct your vision impairment by switching lenses within the machine on the fly.

Auto Refractor/Keratometer

Auto RefractorThe Auto refractor/ keratometer takes an automated measurement of your refractive error. This gives the doctor a starting point for your prescription. It also measures the shape of your cornea which is used for fitting contact lenses.

The accuracy of this combined instrument allows us to have a viable starting point in determining your glasses and contact lens prescription. The keratometer is also useful in determining the health and integrity of the cornea in conditions such as Keratoconus.


Digital Lensmeter

 Digital Lensmeter - eye exam brownsvilleIf you bring your glasses to the exam will we read them on a machine called a lensmeter. This will tell us what prescription you have been wearing so our doctors can compare it to your new prescription and how much change there has been and if you need new glasses. Unlike many eye care practitioners, it is important to note that our doctors are completely separate and make no profit whatsoever from the sale of glasses. Therefore, there is no incentive for our Brownsville eye doctor to recommend you get new glasses when you really do not need to!

Dr. Diaz provides comprehensive eye examinations, including exams for eyeglasses, contact lenses, and eye health testing for glaucoma and cataracts.

Call (956) 200-2020 Request Appointment Online