I-aspheric lens okanye iasphere (ehlala ibhalwe ASPH kumaqhekeza eliso) yilensi eneprofayile yomphezulu ingezizo iinxalenye zengqukuva okanye isilinda.Iprofayile yomphezulu entsonkothileyo ye-asphere inokunciphisa okanye ishenxise i-aberration ye-spherical kwaye inciphise nezinye ii-aberration zamehlo ezifana ne-astigmatism, xa kuthelekiswa nelensi elula.Ilensi enye ye-aspheric inokuthi ithathe indawo yenkqubo entsonkothileyo yeelensi ezininzi.Isixhobo esisiphumo sincinci kwaye sikhaphukhaphu, kwaye ngamanye amaxesha sishibhile kunoyilo lweelensi ezininzi.Izinto ze-aspheric zisetyenziselwa ukuyila i-multi-element wide-angle kunye ne-lens ekhawulezayo yesiqhelo ukunciphisa ukuphambuka.Zikwasetyenziswa ngokudityaniswa nezinto ezibonisa ukukhanya (i-catadioptric systems) ezifana ne-aspherical Schmidt corrector plate esetyenziswa kwiikhamera ze-Schmidt kunye neeteleskopu ze-Schmidt-Cassegrain.Iiaspheres ezincinci ezibunjiweyo zihlala zisetyenziselwa ukudibanisa iilaser diode.Iilensi ze-aspheric nazo ngamanye amaxesha zisetyenziselwa iindondo zamehlo.Iilensi zeglasi yamehlo ye-aspheric zivumela umbono oqaqambileyo kunelensi "yeyona ndlela ingcono" eqhelekileyo, ngakumbi xa ujonge kwelinye icala kuneziko le-lens optical.Ngaphezu koko, ukunciphisa umphumo wokukhulisa i-lens kunokuncedisa kwimimiselo enegunya elihlukeneyo kwi-2 amehlo (anisometropia).Ayinxulumananga nomgangatho wamehlo, zinokunika ilensi ebhityileyo, kwaye ziphinde zijike amehlo ombukeli ngaphantsi njengoko zibonwa ngabanye abantu, zivelisa inkangeleko yobuhle obungcono.
2.Spherical vs iilensi aspherical

Iilensi ze-aspherical spectacle zisebenzisa iigophe ezahlukileyo kumphezulu wazo ukunciphisa isambuku kwaye zizenze zityatyathwe kwiprofayile yazo.Iilensi ezingqukuva zisebenzisa igophe elinye kwiprofayile yazo, izenza zibelula kodwa zibe bulkier, ngakumbi kumbindi welensi.
3.Aspheric Advantage
Mhlawumbi eyona truism inamandla malunga ne-asphericity kukuba umbono ngokusebenzisa iilensi ze-aspheric usondele kumbono wendalo.Uyilo lwe-aspheric luvumela ukuba kusetyenziswe iigophe zesiseko ezithambileyo ngaphandle kokubeka esichengeni ukusebenza kwamehlo.Umahluko osisiseko phakathi kwe-lens engqukuva kunye ne-aspheric kukuba ilensi engqukuva inegophe elinye kwaye imile okwebhola yomnyazi.I-aspheric lens ijika kancinci, njengebhola ekhatywayo engezantsi.Ilensi ye-aspheric inciphisa ukukhulisa ukwenza ukubonakala kwendalo ngakumbi kwaye ukuncitshiswa kweziko lokutyeba kusebenzisa izinto ezincinci, okukhokelela kubunzima obuncinci.