What Eye tests are done for Retinitis Pigmentosa in Nigeria

March 28, 2023

Retinitis pigmentosa is a rare genetic disorder that affects the retina, causing gradual vision loss and eventually blindness. There is currently no known cure for retinitis pigmentosa, but there are treatments available that can help slow down the progression of the disease and improve quality of life. In this article, we will discuss what is Retinitis Pigmentosa and some of the most common retinitis pigmentosa treatments.

What is Retinitis Pigmentosa?

Retinitis pigmentosa (RP) is a group of inherited eye disorders that affect the retina, the part of the eye that converts light into signals that are sent to the brain. The condition causes gradual vision loss over time, starting with night blindness and a gradual loss of peripheral (side) vision, eventually leading to tunnel vision or complete blindness in some cases.

RP is caused by genetic mutations that affect the function of the photoreceptor cells in the retina, which are responsible for detecting light and transmitting signals to the brain. These mutations cause the photoreceptor cells to degenerate and die over time, leading to the progressive vision loss associated with the condition.


There is currently no cure for RP, but there are treatments that can help to slow the progression of the disease and manage its symptoms, such as low-vision aids, visual rehabilitation, and gene therapy.

  • Vitamin A supplements

Vitamin A supplements have been shown to slow down the progression of retinitis pigmentosa in some patients. The supplement is believed to protect the retina from damage caused by free radicals, which can cause oxidative stress and damage to the retina. However, it is important to note that high doses of vitamin A can be toxic, so patients should only take vitamin A supplements under the supervision of a doctor.

  • Retinal implants

Retinal implants are devices that are surgically implanted into the eye to replace the function of the damaged photoreceptor cells in the retina. The implants work by converting light into electrical signals that can be transmitted to the brain, allowing patients to see. While the technology is still in the early stages of development, retinal implants have shown promise in restoring vision in some patients with retinitis pigmentosa.

  • Gene therapy

Gene therapy involves the insertion of healthy genes into the cells of the retina to replace defective or missing genes. The therapy is still in the experimental stages, but early studies have shown promising results in slowing down the progression of the disease in some patients.

  • Low vision aids

Low vision aids are devices that can help patients with retinitis pigmentosa make the most of their remaining vision. These aids include magnifying glasses, telescopes, and electronic devices that can enlarge images and text. They can also help patients adjust to different lighting conditions and reduce glare.

  • Lifestyle changes

While there is no cure for retinitis pigmentosa, certain lifestyle changes can help slow down the progression of the disease and improve quality of life. These changes include eating a healthy diet rich in antioxidants, avoiding smoking and excessive alcohol consumption, and protecting the eyes from UV radiation by wearing sunglasses and a hat.

What Eye tests are done for Retinitis Pigmentosa

There are several tests to check for retinitis pigmentosa (RP), including:

  • Dilated eye exam: Your doctor will examine your eyes after dilating your pupils with special eye drops. This allows them to examine the retina and look for signs of RP, such as pigment changes and damaged blood vessels.
  • Visual field test: This test measures your peripheral (side) vision by having you look at a screen and indicate when you see small flashes of light.

  • Electroretinogram (ERG):
    This test measures the electrical signals generated by the photoreceptor cells in response to light. A small electrode is placed on your eye to record these signals, which can help diagnose RP and determine the severity of the condition.
  • Genetic testing: Your doctor may recommend genetic testing to identify any genetic mutations that are associated with RP. This can help determine the type of RP you have and provide information about the prognosis and possible treatments.
  • Optical coherence tomography (OCT): This test uses light waves to create a detailed image of the retina, allowing your doctor to detect any thinning or damage to the layers of the retina.

These tests may be done in combination or individually, depending on your doctor’s assessment of your condition and your individual needs.

In conclusion, while there is no known cure for RP, there are several Retinitis Pigmentosa treatments available that can help slow down the progression of the disease and improve quality of life. Patients with retinitis pigmentosa should work closely with their ophthalmologist to develop a treatment plan that is tailored to their individual needs and goals.

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