Pigmentary dispersion syndrome (PDS) chirwere chinowanzoonekwa panguva yekuongorora maziso . PDS inoitika apo pigment kubva kumashure kwe iris , chikamu chikamu cheziso rako, chinononoka kubudiswa mukati memvura inoyerera iyo inozadza chikamu chekutanga cheziso. Izvi zvinotonhora, zvinonzi mazino anoseous, zvinotakura pigment nenzira yakananga kuburikidza nechemberi kwemaziso uye kunze kumvura inoyerera yeziso, inonzi trabecular meshwork.
Kana ikara yakakwana yakasunungurwa, inogona kutanga kuvhara ichi chirwere ichi uye kuchengetedza mvura inenge isingayerere zvakanaka. Kana izvi zvikaitika, kushungurudzika mukati meziso kunogona kuvaka nekuita pigmentary glaucoma.
Zviratidzo
Zviratidzo zvePDS zvinowanzokonzerwa nekuwedzera kwekukurumidza kwekumanikidzwa kwameso. Mamiriro aya anogona kukonzera zvikamu zvezviratidzo, kusanganisira zvinotevera:
- Chiratidzo chakasvibiswa
- Rolo halos kumativi ose
- Huru hunova kurwadziwa
Risk Factors
Kunyange zvazvo chero munhu aigona kuumba PDS, inoratidzika kuva yakajairika mune vaduku, varume vachena pakati pemakore 20-40. Zvinofadza kuti vanhu vazhinji vanovaka PDS havafungi.
Zvinokonzera
PDS inokonzerwa nekanyanyisa pigment inotenderera muziso iro rakasunungurwa kubva kumashure kweIris. Vamwe vanhu vane maziso ane maziso akasiyana-siyana anoita kuti lens zvisikwa zvibvise zvisizvo pamusana peIris. Lens zonules ndiyo micheka yakaonda iyo inobata lens crystalline yeziso panzvimbo iyo iri shure kwe iris.
Sezvo iris uye lens zvinoshandura maitiro, zvisikwa zvinopisa zvinopesana ne iris uye iyo pigment inotanga kubuda.
Kuziva
Nemhaka yokuti iyo pigment inotenderera, inoiswa panzvimbo yakasara ye cornea mumutsetse wakafanana. Muchitarisiko chemaziso, ichi chinyorwa chinonzi "pigmentary deposition" chinozivikanwa se "Krukenberg's Spindle." Nemhaka yokuti iyi pigment inobva kumashure kwe-iris, chiremba anogonawo kuona "kuparadzanisa kwe-iris." Izvozvo zvinoreva kuti chiremba anoona kukanganisa-sekusaremera kwakaitwa mu iris apo chiedza chinopfuurira kuburikidza nekushayikwa kweiyo pigment.
Nokushandisa gonioscopy, iye anogona kutora pigment yakawandisa iyo inowanikwa mumugero wemvura weziso. Kushingaira kwameso kunogona kana kuti kusingasimudziri. Kana murwere akashandisa pigmentary glaucoma, zviratidzo zve glaucoma zvinogona kuonekwa zvakare.
Zvimwe Zvaunofanira Kuziva
Zvakakosha kuziva kuti vanhu vose vane PDS havazogadziri pigmentary glaucoma. Kushingaira kweziso kunogona kuchinja zvakanyanya kune varwere vane PDS kana pigmentary glaucoma. Vanhu vanenge 30% chete vane PDS vachakudziridza pigmentary glaucoma. Usashamiswa kana chiremba wako akubvunza iwe nezvemabasa ako. Zviratidzo zvePSS zvinoratidzika kuti zvinowanzoitika panguva yekurovedza. Inofungidzirwa kuti simba guru rekuita muviri rinogona kukonzera kuti pigment ikwanise kusunungurwa. Kana dzimwe pigment ikasunungurwa, kushungurudzwa kweziso kunogona kusimuka uye kunokonzera zviratidzo zvinosanganiswa.
Chinhu chakanakisisa chaungagona kuita ndechokudzoka kune mireni gore negore kana kupfuura kakawanda sekurairwa nachiremba wako. Pigmentary glaucoma, kusiyana neinozivikanwa zvikuru "open angle glaucoma," inofanira kuongororwa nokukurumidza uye inobatwa nehasha.
Chinhu
Alexander, Larry J. Primary Care of the Posterior Segment, Second Edition. Appleton & Lange, 1994.