I-pigmentary dispersion syndrome (i-PDS) yintlupheko edlalwa rhoqo ngexesha loviwo lwamehlo rhoqo . I-PDS iyenzeka xa i-pigment evela kumqolo we- iris , inxalenye yemibala yelihlo lakho, ikhutshwa ngokukhawuleza ngaphakathi kwimizi yangaphakathi egcwalisa inxalenye yangaphambili yeso. Lo mkhuhlane, obizwa ngokuba yi-humic humor, uthwala i-pigment ngendlela ye-cyclic ngokusebenzisa inxalenye yangaphambili yeso kunye nokuphuma kwinqanawa lokucima kwamehlo, elibizwa ngokuba yimisimbozo yokutya.
Ukuba kukhishwa i-pigment eyaneleyo, inokuqala ukucoca le ngxube yomlambo kwaye inokukhusela umbane ukuba ungaphumi kakuhle. Xa oku kwenzekayo, uxinzelelo ngaphakathi kwiso lungaza kwaye lubangele i-glaucoma ye-pigmentary.
Iimpawu
Iimpawu ze-PDS zibangelwa ngokunyuka ngokukhawuleza kwimiqathango yelanga. Le meko ingabangela iziqulatho zeempawu, ezibandakanya oku kulandelayo:
- Umbono ongezantsi
- Ihalos ezinemibala ezijikelezayo
- Iintlungu zentlungu
Izinto zobungozi
Nangona nabani na abanako ukuphuhlisa i-PDS, kubonakala ngathi yinto exhaphake kakhulu kumancinane, amadoda amhlophe phakathi kweminyaka engama-20-40. Kuyathakazelisa kukuba abaninzi abantu abaphuhlisa iPPS bajonge.
Izizathu
I-PDS ibangelwa i-pigment excessively ejikelezayo kwilihlo elikhutshwe kwi-back side ye-iris. Abanye abantu baneempawu ezizodwa zamehlo ezenza i-lens zonulules zixubhe ngokuxhamla kumqolo we-iris. Iimpawu zemibala zincinci ezinobumba obamba i-crystalline lens yeso endaweni esele emva kwe-iris.
Njengoko iris kunye ne-lens zitshintsha ukuma, iinqununu zitshitshisa iris kunye ne-pigment iqala ukukhupha.
Ukuxilongwa
Ngenxa yokuba i-pigment ihamba ngokujikeleza, iya kufakwa kwi-back surface ye- cornea kwipatheni yokujonga. Ekulweni kwamehlo, le ntluphelo ebizwa nge "pigmentary deposition" yaziwa ngokuba yi "Krukenberg's Spindle." Ngenxa yokuba le pigment ivela emva kwe-iris, ugqirha unokubona "ukudluliswa kwe-iris." Oko kuthetha ukuba ugqirha ubona iimpembelelo ezinjengeentsimbi kwi-iris apho ukukhanya kudlulayo ngenxa yokungabi nalutho lwe-pigment.
Ngokusebenzisa i-gonioscopy, unako ukugcina i-pigment excessiweyo efakwe kwingxowanamanzi yeliso. Uxinzelelo lwamehlo lungenakuphakanyiswa okanye alukwazi ukuphakanyiswa. Ukuba isigulane siye savelisa i-glaucoma ye-pigmentary, ke iimpawu ze- glaucoma nazo ziyabonakala.
Yintoni Enye Okufanele Uyazi
Kubalulekile ukuqaphela ukuba bonke abantu abanePSS abayi kuvelisa i-glaucoma ye-pigmentary. Uxinzelelo lwamehlo luya kuguquka ngokubanzi kwizigulane ezine-PDS okanye i-glaucoma ye-pigmentary. Kuphela malunga nama-30% abantu abane-PDS baya kuphuhlisa i-glacoma ye-pigmentary. Ungamangaliswa ukuba ugqirha wakho akubuza ngemisebenzi yakho. Iimpawu ze-PDS zibonakala zenzeka ngakumbi ngexesha lokuzivocavoca. Kucatshangelwa ukuba ukunyakaza ngamandla kwe-exercise kungabangela ukuba iingubo ezininzi zikhutshwe. Xa kukhutshwa ngakumbi i-pigment, ingcinezelo yeso sinokunyuka kwaye ibangele iimpawu ezinxulumene nazo.
Into engcono kakhulu ongayenza kukuba ubuyele iimviwo rhoqo ngonyaka okanye ngokuphindaphindiweyo njengoko ugqirha ugqirha wakho. I-glaigoma yePigmentary, ngokungafaniyo "evulekile i-glaucoma evulekileyo," kufuneka ihlolwe ngokukhawuleza kwaye iphathwe kakubi.
Umthombo
UAlexandro, uLarry J. Unonophelo lweNkcazo yeCandelo eliPhezulu, uLuhlu lwesiBini. Appleton & Lange, 1994.