What is the Retina?

What is the Retina?

The retina is the inner-most part of the eye and contains the neural tissue and cellular networks needed for vision. The retina contains the light-sensitive part of the eye. It contains the two types of cells mainly responsible for vision, Rods and Cones. Rods are used mainly in dim light and provide black-and-white vision. Cones mostly serve to see in well-lit conditions and are responsible for the perception of color, as well as high-acuity vision used for tasks such as reading. There are another type of cell, the Ganglion cell, are are the necessary for pupillary reflex and are a part of the circadian rhythms of the human body.

When light enters the retina, it is translated into electrical signals that then get transmitted to the brain through the optic nerve. The retina is responsible for the translation of light energy into electrical signals between neurons that then get sent to the brain where they are perceived as vision.

The human retina is both complex and fascinating. It is composed of 10 different anatomical layers that contribute either directly or indirectly to the maintenance of vision. All of these layers are the reason for the transmission of the light into electrical signals that will be sent to the brain. The human retina is also very well vascularized as all these neurons need a constant blood supply. Anytime there is a problem with the blood supply of retina it can cause major problems with vision. These symptoms can range from blurry vision to complete blindness. While the neurons and blood supply of the retina are one component, there are other parts of the retina can be just as effective in distorting our vision. Here are a list of common problems that retina specialists deal with in their fields:

  1. Flashes and Floaters / Retina Tear / Retinal Detachment / Vitreous Detachment
  2. Diabetic Retinopathy
  3. Macular Degeneration / Age Related Macular Degeneration
  4. Epiretinal membrane
  5. Retinitis Pigmentosa
  6. CRVO / BRVO (Retinal Stroke)
  7. CRAO / BRAO (Retinal Stroke)
  8. Cystic Edema (Swollen Macula)

Along with the above, there are many conditions that a patient can need their retinal specialist for. Some of these can be very vision threatening and need more urgent attention. At Vision Specialists of California, we take the utmost care to fully evaluate and treat your eyes according to the guidelines set forth by the American Academy of Ophthalmology (USA certifying body). We treat you with the time and respect you deserve as not just another patient, but a fellow human being and a member of our community. Please Call (619) 501-9050 or contact our offices to set up a consultation with our specialists and get the care you deserve.

Please find more information at the American Academy of Ophthalmology sponsored website for Retina: https://en.wikipedia.org/wiki/Retina

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