Biology genetics | Page 9

Retinitis Pigmetosa

What is it?

Background

Retinitis pigmentosa was first used by a doctor named doctor Donders in 1857. There are several different types of retinitis pigmentosa, but they are all related and all usually have the same results. 1/4,000 people are affected by this disease, and it is the leading cause of blindness. In the age group of 45 - 64 years there is a 1/3,195 chance.

Symtoms

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Retinitis pigmentosa is a disease that causes vision impairment due to the rod photoreceptor cells in the retina degenerating so that the person could not see light. There are several different types of retinitis pigmentosa but they are all related. Usually, when a patient has retinitis pigmentosa, it results in them having poor night vision or they could also have no peripheral vision.

Usually, if you have retinitis pigmentosa, you gradually start losing your night vision. This causes your eyes adjust much slower in dark or pitch black rooms. After that, you start to lose your peripheral vision which is your side vision and then it turns into tunnel vision where you can only see a little tunnel in front of you. Eventually, you turn blind.

Doctor Franciscis Donders (above)

Symtoms (above)