●Yintoni ikhathalogu?
Iliso linje ngekhamera esebenza njengelensi njengelensi yekhamera esweni. Xa incinci, lensi iselula, i-elastiki kwaye isondeza. Ngenxa yoko, kude nezinto ezikude nekufuphi zinokubonwa ngokucacileyo.
Ngobudala, xa izizathu ezahlukeneyo zibangela ukutshintsha kwe-len kunye ne-metabolic, iilensi zineengxaki zokutshintshwa kweProtiin, i-Edema kunye ne-epitisheal hyperplasia. Okwangoku, iilensi zisetyenziselwa ukucaciswa njengejelly ziya kuba yi-turbid opaque, oko kukuthi ngenyameko.
Nokuba ingaba i-opacity yelensi inkulu okanye incinci, ichaphazela umbono okanye hayi, inokubizwa ngokuba yingozi.
● Iimpawu zekhathalogu
Iimpawu zokuqala zekhathalogu zihlala zingacacanga, kuphela ngombono ophantsi kakhulu. Izigulana zinokungakhathaleli ngempazamo njenge-Presbyopia okanye ukudinwa kwamehlo, ngokulula ukuphosa isifo. Emva kwe-meticase, i-opacity yelensi yesigulana kunye nenqanaba lombono ovuthayo likhule, kwaye inokuba nemvakalelo engaqhelekanga efana ne-strabismus ephindwe kabini, i-mypia nelilitha.
Iimpawu eziphambili zekhathalogu zezi zilandelayo:
1. Umbono ongaboni kakuhle
Ipayini ejikeleze iilensi ayinakuchaphazela umbono; Nangona kunjalo i-opacity yenqanaba eliphambili, nokuba umkhawulo mncinci kakhulu, uya kuwuchaphazela kakuhle umbono, obangela into ebaluleke kakhulu umbono ophathwayo kunye nomsebenzi wokubonakalayo. Xa ilensi inamafu kabukhali, umbono unokuncitshiswa ukuqondwa kokukhanya okanye ukungaboni.
2. Ukuncitshiswa kwemvakalelo yokwahlula
Kubomi bemihla ngemihla, iliso lomntu kufuneka lahlule izinto ezinemida ecacileyo kunye nezinto ezinemida ye-fuzzy. Olu hlobo lokugqibela lwesisombululo lubizwa ngokuba yimvakalelo yovakalelo. Izigulana zekhathalogu zisenokungaziva ziyinyani, kodwa imvakalelo yokwahlukileyo incitshisiwe kakhulu. Izinto ezibonakalayo ziya kubonakala zinamafu kwaye fuzzy, zibangela halo phenomenon.
Umfanekiso obonwe ngamehlo aqhelekileyo
Umfanekiso obonwe kwisigulana esiphezulu
3. Guqula ngengqondo yombala
I-lensi elinamafu enamabala amachaphaza amathanga afumana ukukhanya okublowu okublowu, oko kwenza iliso lingabi nakuthobela imibala. Utshintsho kumbala we-nucleus welensi ikwanjalo nefuthe lombala, ngokuphulukana nobungqina bemibala (ngakumbi i-Blues kunye nemifuno) ngexesha lasemini. Ke izigulana ezikhathazekileyo zibona umfanekiso owahlukileyo kubantu abaqhelekileyo.
Umfanekiso obonwe ngamehlo aqhelekileyo
Umfanekiso obonwe kwisigulana esiphezulu
●Ungakukhusela njani kwaye uphathe ikhathalogu?
Ikhathalogu sisifo esiqhelekileyo kwaye senzekile rhoqo kwi-opshalmology. Olona nyango luphambili lwekhathalogu luhlinzwa.
Izigulana zokuqala zeSeneile zingenayo impembelelo enkulu kubomi bombono wesigulana, ngokubanzi unyango aludingi. Banokulawula umyinge wenkqubela phambili kunyango lwamehlo, kunye nezigulana ezinentswelo ehlaziyiweyo yokunxiba iiglasi ezifanelekileyo ukuphucula umbono.
Xa ikhathalogu iba mandundu kwaye umbono ophul'zekileyo uchaphazele ubomi bemihla ngemihla, kuya kufuneka utyando. Iingcali zibonisa ukuba umbono wasemva kwexesha awuzinzanga kwixesha lokudibanisa ngaphakathi kwenyanga e-1. Ngokubanzi izigulana kufuneka zenze iimviwo ze-Optometry kwiinyanga ezintathu emva kotyando. Ukuba kukho imfuneko, nxiba iiglasi (i-myopia okanye iglasi yokufunda) ukuze uhlengahlengise umbono kude okanye kufutshane nombono, ukuze ufumane ifuthe elibonakalayo elingcono.
Iilensi zendalo iphela zinokuthintela izifo ze-Ophthalhalmic, iinguqu ezingaphezulu kwe-Pls Pls:https: //wwwm.