Retinitis Pigmentosa: Symptoms, Causes | 合法醫療器材資訊網

2021年2月3日—ArticlesOnWhatIsRetinitis?...Retinitispigmentosa(RP)isatermforagroupofeyediseasesthatcanleadtolossofsight.Whattheyhavein ...

Retinitis pigmentosa[1] (RP) is a term for a group of eye[2] diseases that can lead to loss of sight. What they have in common are specific changes your doctor sees when they look at your retina -- a bundle of tissue at the back of your eye. When you have RP, cells in the retina called photoreceptors don’t work the way theyre supposed to, and over time, you lose your sight.

It’s a rare disorder that’s passed from parent to child. Only 1 out of every 4,000 people get it. About half of all people with RP have a family member who also has it.

The retina has two types of cells that gather light: rods and cones. The rods are around the outer ring of the retina and are active in dim light. Most forms of retinitis pigmentosa affect the rods first. Your night vision[3] and your ability to see to the side -- peripheral vision[4] -- go ...