Phunzirani za Mitundu Yambiri Yopweteka
Ngakhale nthendayi yonse ikuphatikizapo kusintha kwa diso la diso , mitundu yambiri yamatenda imakhalapo. Matenda amatha kupweteka chifukwa cha ukalamba kapena angawoneke msinkhu wa moyo. Mbali zosiyana za lens zingakhudzidwe kwambiri kuposa ena. Madokotala a maso amachititsa munthu kukhala ndi khansa malinga ndi malo omwe anachokera.
Mitundu ya Cataract ndi Malo
Zozizira zimasankhidwa ndi madokotala molingana ndi malo a opacity, kapena clouding, a lens.
Nyuzipepala ya Nuclear Sclerotic
Nthenda yotchedwa cataract ya nyukiliya ndiyo mtundu wofala kwambiri wa cataract wokhudzana ndi zaka. Mtundu wa cataract umenewu umapangitsa kuti mdima wang'onopang'ono ukhale wolimba komanso kuumitsa pakatikati pa disolo lomwe limatchedwa khungu. Kusintha kwa masomphenya nthawi zambiri kumakhala pang'onopang'ono.
Nthawi zina, odwala angaone kusintha kwenikweni kwa masomphenya pafupi ndi masomphenya awo asanawonongeke kwambiri. Kutchulidwa kuti " chachiwiri kupenya ," gawo ili ndi lachidule chabe.
Cortical Cataract
Chilonda cha cortical chimawoneka ngati kuwala kwa mitambo mu gawo la lens lotchedwa cortex. Kortex ili ndi phokoso, kapena mbali yakunja, ya disolo. Zilondazi nthawi zambiri zimafanana ndi spokes ya gudumu yomwe imaloza mkatikati mwa lens. Kuwala kumabalalitsa pamene ukugunda opacities ngati oyankhula.
Cataract ya Posterior Subcapsular
Kawirikawiri amatchedwa PSC, khungu la posterior subcapsular ndi lachangu lomwe limayamba kumbuyo kwa disolo, mwachindunji pansi pa thumba la lens caspsular limene limakhala ndi lens.
Mtundu uwu wa cataract umachititsa kumva kutenthezeka, kusokonezeka pafupi ndi masomphenya, ndi kuwala ndi maulendo pafupi ndi nyali. Iwo ali ofala kwambiri kwa odwala matenda a shuga ndi odwala omwe atenga malo kwa nthawi yaitali.
Mitundu ya Cataracts ndi Chiyambi
Madokotala a maso amachitanso kuti azikhala ndi khansa malinga ndi mmene amachokera.
Cataract yokhudzana ndi zaka
Zilonda zambiri zimakula tikamakula. Ngakhale zizindikiro zikhoza kuwonedwa mukangoyamba zaka 40 mpaka 50, nthawi zambiri matendawa sakhala ofunika mpaka kumapeto kwa zaka za 60 kapena 70.
Vuto lachiwiri
Nthaŵi zina matendaŵa amatha kuyamba opaleshoni ya maso, monga opaleshoni ya glaucoma kapena opaleshoni ya retinal. Odwala matenda a shuga nthawi zina amatha kukhala ndi vutoli kuposa kale. Komanso, odwala omwe amatenga steroids kwa nthawi yaitali angakhale ndi matenda oopsa.
Cataract yoopsa
Nthawi zina zimakhala zoopsa chifukwa chovulazidwa mwachindunji kapena kupweteka kwa diso. Matendawa amatha msanga kapena patapita zaka zambiri zomwe zimawononga diso. Zilonda zoopsa zimachitika kawirikawiri pambuyo povutitsidwa ndi diso kapena poyerekeza ndi mankhwala ena.
Ana ena amabadwa ndi nthendayi. Nthaŵi zina, nthendayi yomwe imatulutsidwa siikuthandiza kwambiri kuti iwononge masomphenya. Ngati zili zofunikira, komabe cataract iyenera kuchotsedwa kuti tipewe mavuto a masomphenya, monga strabismus kapena amblyopia .
Cataract Yamoto
Ngakhale kuti kawirikawiri, katemera nthawi zina amapanga atakhala ndi mitundu ina ya ma radiation. Mtundu uwu wa cataract ukhoza kuyambika kuchokera ku kuwala kwa ultraviolet kuchokera ku dzuwa ndi mitundu ina ya ma radiation.
Chitsime:
Association of American Optometric Association. "Malangizo Othandizira Pachipatala: Kusamalira Wodwala Wodwala ndi Cataract." Association of American Optometric Association, 1995.