● Lilense tse tsoelang pele li boetse li tumme har’a batho ba hlokang ho bona ha motho a le hōle le ho lokisoa haufi le ho bona, ba kang ba sebetsang ka lik’homphieutha kapa ba hlokang ho bala nako e telele.Ka lilense tse ntseng li tsoela pele, motho ea li roalang o hloka feela ho tsamaisa mahlo a hae ka tsela ea tlhaho, ntle le ho sekamisa hlooho kapa ho fetola boemo ba 'mele, ho fumana sepheo se setle ka ho fetisisa.Sena se etsa hore e be tse loketseng bakeng sa tšebeliso ea letsatsi le letsatsi, kaha motho ea li apereng a ka fetoha habonolo ho tloha ho bona lintho tse hōle ho ea ho tse haufi le lintho ntle le ho fetola likhalase kapa lilense tse fapaneng.
● Ha ho bapisoa le lilense tse tloaelehileng tse tsoelang pele (9+4mm/12+4mm/14+2mm/12mm/17mm), melemo ea moralo oa rona o mocha ke:
1. Moralo oa rona oa ho qetela o bonolo o ka etsa phetoho ea astigmatism hantle sebakeng se foufetseng ho fokotsa ho se thabise ha ho apara;
2. Re hlahisa moralo oa aspheric sebakeng se sebelisoang haholo ho lefella le ho ntlafatsa matla a ho tsepamisa mohopolo, ho etsa hore pono e sebakeng se sebelisoang haholo e hlake haholoanyane.