Okokuqala, masiqonde ukuba yi-lens eqhubekayo, kwaye ukuhlelwa kweelensi zayo kunokuchazwa njengento yonke.Ukuba yahlulwe ukusuka kwindawo ekugxilwe kuyo, iilensi zinokwahlulwa zibe ziilensi zokujolisa enye, iilensi ze-bifocal, kunye neelensi ezininzi.Iilensi ezininzi eziqhubelekayo, ezikwabizwa ngokuba ziilensi eziqhubelekayo, zineendawo zokugxila ezininzi kwilensi.
Iilensi eziqhubela phambili ziyimveliso yokuhlolwa kwamaxesha.Njengoko iminyaka ikhula, ukukwazi kwamehlo ukuhambelana ngokuthe ngcembe kuyancipha, okubangela ukuba isigulana sibe nobunzima bokubona kufutshane, ukuze kumsebenzi osondeleyo obonakalayo, i-myopic kufuneka yongeze i-lens convex ukongeza kwi-static refractive correction. babe nombono ocacileyo.yombono okufutshane.Ngaphambili, abantu abaninzi abadala basebenzisa iilensi ze-bifocal ukusombulula ingxaki yokubona kude nakufuphi ngexesha elifanayo, kodwa ngenxa yembonakalo yabo engathandekiyo kunye nokuthandwa kwee-multifocals eziqhubekayo, iilensi ze-bifocal zapheliswa ngokusisiseko;iilensi ezininzi zibalulekile kwimbali yophuhliso lwelensi., kwaye iya kuba ngundoqo wophando lwenzululwazi kunye nophuhliso kunye nokuthandwa kweemarike kwixesha elizayo.Ilensi eqhubela phambili kukufikelela umgama othe qelele, kufutshane, naphakathi kwilensi enye, ukuthintela ingxaki yokusoloko utshintsha iiglasi.Sivile kakhulu ngoqeqesho olunenkqubela phambili, kodwa ayiyomveliso intsha, kodwa abantu abadala abaninzi abakazi ukuba mabenze ntoni.Ukuba kukho imveliso enjalo, siya kuthatha inyathelo lokuqala lokubuza.Kakade ke, sinokuthabatha inyathelo lokuqala lokuyizisa kwaye sibazise ukuba ukongeza kwiindondo zokufunda, kukho iindlela ezongezelelekileyo eziluncedo.
Ziziphi iingenelo zeefilimu eziqhubekayo?
1. Ukubonakala kwe-lens kufana ne-lens yombono omnye, kwaye umgca wokuhlula wenguqu yamandla awukwazi ukubonakala.Ayintle kuphela ngenkangeleko, kodwa okona kubaluleke kakhulu, ikhusela ubumfihlo bomntu oyinxibileyo, kwaye akukho mfuneko yakuba nexhala malunga nokutyhila imfihlo yobudala ngenxa yokunxiba iindondo.
2. Ekubeni utshintsho lwamandla e-lens luhamba ngokuthe ngcembe, akusayi kufana nokutsiba.Kukhululekile ukunxiba kwaye kulula ukuziqhelanisa, ngoko kulula ukwamkelwa.
3. Ngenxa yokuba idigri ihamba ngokuthe ngcembe, ukutshintshwa kwempembelelo yokulungelelanisa kwandiswe ngokuthe ngcembe ngokokunciphisa umgama obonwayo, akukho kuguquguquka kohlengahlengiso, kwaye akulula ukubangela ukukhathala okubonakalayo.
4. Umbono ocacileyo ufumaneka kuyo yonke imigama kwindawo yokubona.Iperi yeglasi iyanelisa ukusetyenziswa komgama, imigama ekufutshane kunye nephakathi ngexesha elinye.
Ngaba kufanelekile ukuba abantu abadala banxibe?
Ifanelekile.Xa ifilimu eqhubekayo yenziwa, yayisetyenziselwa abantu abadala, kwaye kamva yaphuhliswa kubantu abaneminyaka ephakathi kunye nabaselula, kodwa apha ndikhumbuza wonke umntu ukuba ifilimu eqhubekayo ayifanelekanga kumntu wonke.Yiya kugqirha wamehlo oqhelekileyo phambi kokuba ufumane iindondo., kwaye emva koko ukhethe i-lens emva kwe-optometry efanelekileyo.
Ixesha lokuposa: Jul-27-2022