Ngaba uke wafumana indawo ephazamisayo ibonakala kumbono wakho? Amacwebhu, iindandatho, amabala kunye neentlanzi ngamagama asetyenziswa ukuchaza izinto ezincinci esizibona ngethuba kwimbono yethu okanye kwimbonakalo yembonakalo. Abaninzi bethu baye babona enye okanye ezimbini ebomini bethu kwaye abanye bethu banokukhathazeka kakhulu kumlinganiselo omkhulu.
Ziziphi iindwendwe?
Iindwendwe yigama eliqhelekileyo elinikezelwa kwizinto esizibonayo ngezikhathi ezithile kumbono wethu.
Izikhumba zivame ukuvela kwi-vitreous humor, i-gel-like substance ezalisa igumbi ngaphakathi kweso . I-vitreous iqinile kwaye icace xa siselula. Nangona kunjalo, njengoko sineminyaka yobudala, i-vitreous ihlala itshintsha utshintsho kwaye iyancipha. Xa oku kwenzekayo, i-gel ingaba yenziwe ichanekile okanye ivelise imida okanye iindawo ezithengeza ngaphakathi ngaphakathi kweso. Ezi zihlunu zeethambo zihlala zikhulu kakhulu kangangokuba ukukhanya akukwazi ukukhanya kubo. Ngenxa yoko, ukukhanya kufaka iliso kunye nezicubu ezininzi zithatha isithunzi phezu kwe- retina kwaye sibona njengethunzi okanye ingqungquthela ejikelezayo kwindawo.
Izikhukhula ziyakubonakala ngathi zilandelayo:
- ma catshulwa
- amachaphaza
- intambo okanye imida
- iisongo
- iibhodi
Yintoni Eyenza Izikhukhula Zibaluleke Kakhulu?
Izikhukhula zibonakala ngakumbi xa zikhangela kwikhompyutheni yekhompyutheni okanye ngokuqhelekileyo, zijonge isibhakabhaka esibhakabhaka esibhakabhaka. Abaphandi bezakhono bahlala bekhalaza ngokubona iiplanti ngenxa yokuba behlala bejonga imvelaphi emhlophe emhlophe.
Izikhukhula zivame ukuhamba. Xa ususa iliso lakho ukugxila kubo, bathambekela ekutshintsheni kwindawo eyahlukileyo ngokukhawuleza. Bangakwazi ukuhamba bejikeleze ngaphakathi kwamehlo akho kodwa ngokuqhelekileyo kukunyakaza kwamehlo akho kukunika uvakalelwa kukuba i-floater iyahamba.
Inkoliso yethu ininzi ithetha ukungayihoyi iipolati okanye nje ukuzisebenzisa.
Ubulumko bethu buhle kakhulu ngokungawahoyi. Uninzi lwezinto ezihambahambayo zihlala zihlala kwindawo engaphantsi kwamehlo ngenxa yobukhulu bemvelo kodwa ngamanye amaxesha, ukukhanya okufanelekileyo kwinqanaba elifanelekileyo lingabangela ukuba babonakale.
Ngaba iiplangazi ziyingozi?
Uninzi lwezinto ezihambahambayo zinobungozi. Nangona kunjalo, ngamanye amaxesha i-floater ingaba ngumqondiso wento eninzi yingozi. Ukwanda kwangoko kwintlanti, ukunyuka kobukhulu bezantantyambo okanye izibane ezitsha ezihambayo ezihamba kunye ne-floater zingaba ngumqondiso wesithwathwa okanye i-detectment. I- retinal tear or detachment yintlungu okanye ukuhlukana kwe-retina, iincinci ezinamaqabunga ezinobomi ezinobunzima obusemva kweso leso. Kulo msebenzi wokunyamekela kwamehlo, inkqonkqo okanye i-detachment ithathwa njengongxamiseko. Impumelelo yokunyangwa kweendwangu okanye i-detachedment incike kwi-retina ebandakanyekayo kwaye ubude bexesha lonyango luqalisiwe.
Izizathu
Isizathu esona siqhelo sezinto ezihamba phambili zintlupheko kukuphuhliswa kwesithintelo esiphezulu se-vitreous (PVD). Kwi-PVD, i-vitreous ingabelana ngokwenene kwi-retina. Nangona i-PVD inokubangelwa ngenxa yentleba, ixhaphaka kakhulu kubantu abakwi-50s yabo. Ukuguga kubangela ukuba i-vitreous ihlaziye kwaye ikhuphe kwi-retina.
Ukuba le nzekayo ihamba ngokukhawuleza, inokuthi ibambe kwi-retina, ibangele iimpawu zezibane ezikhanyayo. Ukuba ikhupha ngokukhawuleza, i-tear retin tear can occur. I-Fluid ingayakha emva kwe-retina, ihlule ukusuka eludongeni liso.
Ezinye izimbangela zezinto zokuhamba zihamba ngesifo sesifo sikashukela, ukuphaphaka okanye ukuvumbaza kwi-vitreous, i-vitreous inflammation, ukulimala kwamehlo, kunye neelayi zamehlo . Ukuba uhlakulela ii-float ezintsha kufuneka ufumane ngokukhawuleza ugqirha weliso ukuze uviwo olubanzi. Ugqirha uya kuhlolisisa ngasemva kweso lakho ngokufakela ikhefu elithile elijongene neliso eliza kukhulisa umfundi.
ILizwi
Ukuba ukhangele ngokukhawuleza indawo okanye ugxile embonweni wakho, ungakhathazeki. Le ndawo inokuba yintlambo, inxalenye encinane yamathambo ejikelezayo ngaphakathi kwiso lakho. Uninzi lwezinto ezihambahambayo alunakuze lube lubi. Nangona kunjalo, ukuba unokuqaphela ngokukhawuleza ukwanda ngokukhawuleza kwintlanzi okanye ukukhanya kokukhanya, kulungile ukuba uqaphele ugqirha wakho weziliso.
> Umthombo:
> Unonophelo olusisiseko lweNqanaba eliPhezulu, iNguqulelo yesithathu, uAlexander, Larry, McGraw-Hill Publishing, 2002.