Closeup of an Eye

What is Retina?

The retina is a very important functional part of the eye. It is the sensory membrane that lines the inner surface of the back of the eye. It contains several layers and photoreceptors that help with vision. The first step in vision is the conversion of light into signals that are then interpreted by the brain. This process takes place in the retina. Having a healthy retina is essential for good vision. Diseases of the retina can affect central vision and if not treated may cause partial or total loss of sight.

Retina Function

The retina contains two types of photoreceptors – rods and cones. The rods are responsible for detecting motion, providing black and white vision, and functioning in low light. Cones are responsible for central vision, color vision, and functioning in medium and bright light. The photoreceptors in the retina take the light that is focused by the cornea and convert it into signals that are transported to the visual centers in the brain by the optic nerve. The brain then converts these signals into images and visual perceptions.

The Anatomy of the Eye

Problems with the Retina

There is a wide variety of problems and diseases that can occur in the retina, such as:

  • Macular Degeneration
  • Diabetic Retinopathy
  • Macular Edema
  • Detached Retina
  • Hypertensive Retinopathy
  • Central Serous Retinopathy
  • Solar Retinopathy

If you start to notice signs of vision loss, it could be due to a condition of the retina. It is important to get your eyes checked regularly so that your ophthalmologist can track any vision loss or presence of eye conditions.

Chart Showing a Retinal Detachment in an Eye

Schedule a Consultation

It is essential to keep your retina functioning properly in order to enjoy a lifetime of good vision. Many problems with the retina are able to be detected by an eye doctor prior to any significant symptoms. Make sure to come into Boston Eye Group for your routine eye exam so that we can make sure that your eyes and retina are healthy and functioning. Call us today to make an appointment or fill out our online form.



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