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Located on South Capital Texas Hwy Next to Lenscrafters

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How Do We See?

eyeball drawing

Have you ever thought about how vision works? Seeing is an incredible gift made possible by a system in which the eye and the brain process visual information from the outside world. If any step of that process does not function properly, vision will be impaired.

Similar to a camera, the eye transmits light from the world around us into an image that we can perceive. Certain parts of the eye even function like the different parts of a camera such as the shutter, the lens and film (if we can hearken back to the days when we used film in cameras). Here is a quick breakdown of the fascinating way our eyes and brain enable us to see and experience the world around us:

The Vision Process

Light reflected from an object in our field of view is gathered by the cornea which is essentially the clear “window” to our eye. The cornea then refracts the light rays through the pupil (the center of the iris where light enters the eye). The iris, which like the shutter of a camera will enlarge and shrink based on how much light is coming in, then passes the image onto the crystalline lens. Just like a camera lens, the lens in the eye focuses the light rays, projecting them to a point at the back of the eye called the retina, where the image will appear upside down. The retina contains a thin layer of color-sensitive cells called rods and cones that perceive color.

From the retina, the visual signals travel to the brain via the optic nerve. The brain receives information from both eyes and must then converge the images (and flip them right side up) to get a complete picture.

Vision Problems

A breakdown in vision can happen at any point in this process. From the muscles that control the eyes, to the parts within the eye, to the pathway to the brain. Sometimes vision impairment is due to technical problems with the eye receiving the information and passing the signal on, such as convergence insufficiency (inability to coordinate the eyes to converge on one point), myopia (nearsightedness) or cataracts (clouding of the lens).

Other times, the eyes might work perfectly, but there is a problem with the brain interpreting the signals it receives. In these cases we can’t “see” in the traditional sense, because our brains aren’t able to properly “read’ the signals or we don’t know what we are looking at. This is the case for some learning disorders that are caused by the visual processes in the brain such as dyslexia.

As you can see, vision is quite a complicated process. A simple vision exam isn’t always able to determine vision problems, especially in children which is why it is so important to have regular comprehensive eye exams, to measure the health of the eye and all of its parts.

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To Our Valued Patients:
Barton Creek Eyecare has always been committed to the health and safety of our patients, our staff, and our community.
Due to the current spread of the Coronavirus (COVID-19), we want to assure you that it has been our commitment for years to sanitize each piece of equipment both immediately before and immediately after each use to ensure no germs are spread from one patient to another. We have always been proud of this commitment.
While cleanliness has always been a top priority of our practice, we are also increasing the frequency in which ‘high touch’ areas will be cleaned and sanitized, such as our reception chairs and tables. You’ll notice that we have also removed magazines from our reception area to decrease the spread of germs.
Additionally, we continue to practice good hygiene by our doctors and staff. We plan to wash our hands frequently with antibacterial soap or to use a high-percentage alcohol hand sanitizer.
We are actively monitoring both local and national information about the Coronavirus. We are continuing to do everything we can to keep our practice a clean and safe environment for you and your family.
Barton Creek Eyecare will continue to monitor COVID-19 closely and will follow the guidelines provided by local and national organizations like the CDC and WHO, and can assure you that our practice remains a safe place to continue your uninterrupted eye health care.
We feel it essential to keep you updated, and if you have any questions, concerns, or need to reschedule, please give us a call.
Thank you for being such a valued patient,
The Doctors and Staff of Barton Creek Eyecare