● Lenses-yada horumarsan ayaa sidoo kale caan ku ah dadka u baahan aragti fog iyo hagaajinta aragga labadaba, sida kuwa ku shaqeeya kombuyuutarrada ama u baahan inay wax akhriyaan wakhti dheer.Lenses horusocod ah, qofka xidhani wuxuu si fudud ugu baahan yahay inuu indhahooda si dabiici ah u dhaqaajiyo, iyada oo aan madaxa u janjeerin ama habayn, si uu u helo diiradda ugu fiican.Tani waxay ka dhigaysaa inay ku habboon yihiin isticmaalka maalinlaha ah, maadaama qofka xidhani si fudud u beddeli karo inuu arko walxaha fog una beddelo wax u dhow isagoon u beddelin muraayado ama muraayado kala duwan.
● Marka la barbar dhigo muraayadaha horumarka caadiga ah (9+4mm/12+4mm/14+2mm/12mm/17mm), faa'iidooyinka naqshadeena horusocodka ah ee cusub waa:
1. Naqshadaynta dusha jilicsan ee ugu dambeysa waxay ka dhigi kartaa isbeddelka astigmatism si habsami leh ee aagga indhoolaha si loo yareeyo raaxo la'aanta xirashada;
2. Waxaanu ku soo bandhigaynaa nakhshad aspheric ah ee aagga la isticmaalo si loo magdhabo oo loo hagaajiyo awoodda xudunta u ah, taasoo ka dhigaysa aragtida aagga fog ee la isticmaalo.