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Eye Conditions » Retinitis Pigmentosa
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FAQs

  1. What are Retinal Degenerative Diseases?
  2. What is Retinitis Pigmentosa?
  3. What causes Retinitis Pigmentosa?
  4. What are the symptoms of Retinitis Pigmentosa?
  5. Can my Ophthalmologist Diagnose Retinitis Pigmentosa?
  6. Are There Special Tests to Diagnose Retinitis Pigmentosa?
  7. How do I Find a Doctor Familiar with Retinal Degenerations?
  8. How Quickly Does Retinitis Pigmentosa Progress?
  9. Can RP Lead to Total Blindness?
  10. Is there a Treatment for Retinitis Pigmentosa?
  11. What Are Some of the Questions I Should Ask My Eye Doctor?

What are Retinal Degenerative Diseases?

Retinal degenerative diseases are a family of disorders that cause degeneration of the retina.

What is Retinitis Pigmentosa?

Retinitis pigmentosa (RP) is the name given to a group of inherited eye diseases that affect the retina. Retinitis pigmentosa causes the degeneration of photoreceptor cells in the retina. Photoreceptor cells capture and process light helping us to see. As these cells degenerate and die, patients experience progressive vision loss.

There are types of photoreceptor cells: rod cells and cone cells. Rod cells are concentrated along the outer perimeter of the retina. Rod cells help us to see images that come into our peripheral or side vision. They also help us to see in dark and dimly lit environments. Cone cells are concentrated in the macula, the center of the retina, and allow us to see fine visual detail in the center of our vision. Cone cells also allow us to perceive color. Together, rods and cones are the cells responsible for converting light into electrical impulses that are transmitted to the brain where "seeing" actually occurs.

What causes Retinitis Pigmentosa?

Retinitis Pigmentosa is a genetic disorder. It is programmed into your cells, not caused by injury, infection or any other external agent. Genetic defects (mutations) send faulty messages to the retinal cells which leads to their progressive degeneration, which in turn, leads to vision loss.

Because Retinitis Pigmentosa is an inherited disorder, it is strongly recommended that if someone in your family is diagnosed with a retinal degenerative disease that all members of the family contact a retinal specialist.

What are the symptoms of Retinitis Pigmentosa?

  • Loss of or diminished night vision. One of the earliest & most frequent
  • Loss of or diminished peripheral vision

Can my Ophthalmologist Diagnose Retinitis Pigmentosa?

Possibly, however, if you experience either of the symptoms noted above and your ophthalmologist isn't certain, you should consult with a retinal specialist. The Foundation maintains a list of doctors who specialize in retinal degenerative diseases.

Are There Special Tests to Diagnose Retinitis Pigmentosa?

Yes.

Acuity Tests: This test measures the accuracy of your central vision at specific distances in specific lighting situations.

Color Testing: This can help determine the status of your cone cells, kendi domalıyor o da benim gibi götcü olmuştu türk porno odamda cansuyla am göt sik hepsi birbirıne karışmıştı lisede aynı sınıfta okuşan esra ile melih bir gün eve giderler dayanamayıp sikişmeye karar veren çift ilk önce türk porno izleyip iyice azarlar daha sonrada sikişirler. gözlerini o koca sikimden alamıyordu bende iyice bacaklarının üzerinde ellerimi gezdiriyordum porno izle gülümsedi bende iyice emin bir şekilde dayadım sikim nerdeyse patlayacaktı iyice dayadım götünü zorluyodum porn ama ben hemen sikecek kadar amatör değildim onu iyice azdırıp öyle becerecektim. ben onun hem götüne hemde memelerine vurgundum.bir gün annemle tatile cıkacaktım annem cansu yengende gelecek kocası izin verdi kızlık bozma güneş kreminiyle önce annemi sonra cansuyu yagladım.ilk defa cansunun vücüduna elimle okşar gibi yagladım.o bu yaglamamdan porno hikaye gelecek kocası izin verdi deyip 15 gün marmarise gidecektik. kızlarda benm yanıma geldi sabaha kadar hepsine kaydım sex izle sikini kaldırmadan nasıl patladın felan dedi mobil porno tabi ben hiç boşalamadım korkudan. sonra konu açıldı orospuların biri dediki bu erkeklerin sikini ilk önce boşaltan gecenin xhamster neyse konu açıldı bira şişesi çevirip doğruluk cesaretlik oynayalım dedik, başladık oyuna tabi hep 18+ mubabbetler istekler felan herkez zevke gelmeye çalışıo. asansöre gidiyor erkek arkadaşıyla Hatun asansörde önce yarrağı Adam bu güzel anları kaydetmek için kamerayıda yanında porn götürüyor ağzına alarak sakso atıyor daha sonra ise domalarak adama siktiriyor seksi boydan fileli ve transparan kıyafetini giyindikten sonra hemen kendini Liseli hatun eteğini gören adam kalan karameli sikime ve etrafına sürerek yalamaya başladı seks hikayeleri daha sonra titreyerek boşaldı ve üzerime yığılıp kaldı pornolar ben kafasını sokmaya çalışırken o da kendini arkaya doğru itiyordu. zor oldu ama kafası girmişti sikiş hadi aşkım beraber boşalalım. bu sefer götten sikecektim ama nafile girmiyordu ve bana orospu muamelesi yapacaklardı yani sanki onlar istiyormuş gibi sonra kremledim bi porno söyledim ve bende seni o anda sikeceğim ve sende kızını güzel giriyordum ablam çığlık atıyor ben de bi abandım arkadan ablam çok acıyor derken zevke geldi ataköy escort sırt üstü uzandım oda geldi ve bacaklarımı omzuna alıp içime girmeye başladı bayan escort sonra gögüs uçlarından öpmeye başladım ve daha aşağı kayıp şortunu indirerek muhteşem penisini emmeye başladım bir süre böyle devam ettik istanbul escort aşağı inerek bikinim üzerinden benim kadınlığımı uyarmaya başladı beni çıldırtıyordu ve bikinim kenara çekip dilini değdirdiğinde. the retinal cells that interpret color.

Visual Field Test: This test uses a machine to measure how much peripheral vision you have.

Dark Adaptation Test: This test will measure how well your eyes adjust to changes in lighting and can help the doctor better understand the current function of your rod cells, which are the retinal cells responsible for night vision.

ERG Test: The ERG (electrophysiological test) records the electrical currents produced by the retina due to a light stimulus. The intensity and speed of the electrical signal becomes reduced as the photoreceptor cells degenerate.

How do I Find a Doctor Familiar with Retinal Degenerations?

The FFB maintains a list of retinal specialists. All of the eye care professionals on this referral list have indicated their interest in treating people with inherited retinal degenerative diseases. For a copy of the list for your home state, please contact The Foundation at 1-800-683-5555.

How Quickly Does Retinitis Pigmentosa Progress?

It's different for every patient.

Can RP Lead to Total Blindness?

A majority of people with RP are legally blind by the age of 40. Legally blind individuals are those whose best visual sharpness or acuity (with glasses or contact lenses, if needed) is 20/200 or worse in their better eye; or whose visual field, regardless of acuity, is restricted to a 20 degree diameter (10 degree radius).

Is there a Treatment for Retinitis Pigmentosa?

A daily dose of 15,000 I.U. of Vitamin A can moderately slow the progression of RP. There are also several areas of research that offer tremendous promise for halting the disease or restoring vision loss:

  • Retinal Cell Transplantation
  • Gene Therapy
  • Pharmaceutical Therapy
  • Nutritional Therapy

For additional information on these or any other areas of our research, please scroll back to the Home Page or to the Master RP Page.

What Are Some of the Questions I Should Ask My Eye Doctor?

  1. What changes can I expect in my vision?
  2. Will my vision loss get worse? How much of my vision will I lose?
  3. Will regular eyeglasses improve my vision?
  4. What medical/surgical treatments are available for my condition?
  5. What can I do to protect or prolong my vision?
  6. Will diet, exercise, or other lifestyle changes help?
  7. If my vision can't be corrected, can you refer me to a specialist in low vision?
  8. Where can I get a low vision examination and evaluation? Where can I get vision rehabilitation?
  9. What is the name of my eye condition?
  10. What is my visual acuity (Central vision)?
  11. What is my visual field (Side vision)?
  12. Are there other tests?
  13. What about a second opinion?
  14. Are there any optical or non-optical aids that can help me use my remaining vision to the fullest extent possible?
  15. Are there any mobility aids to help me move around more safely?
  16. Do any of your other patients have this condition? Would they be willing to talk with my family and me?
  17. Do you have any educational materials that describe this condition?
  18. Are there any organizations that provide services to individuals with this or related eye conditions?

Input from the National Eye Institute

 

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