Laakin marka laga reebo in ay noqoto lens multifocal oo aan lahayn khadad muuqda, lenses horusocod ah ayaa awood u siinaya dadka qaba presbyopia in ay mar kale si cad wax u arkaan meel kasta oo fog.
Faa'iidooyinka muraayadaha horumarka leh ee ka sarreeya bifocals
Muraayadaha indhaha ee laba-geesoodka ah waxay leeyihiin laba awood oo keliya: mid lagu arko qolka oo dhan iyo kan kale oo lagu arko meel u dhow. Walxaha u dhexeeya, sida shaashadda kombuyuutarka ama shayada ku yaal shelf dukaanka raashinka, inta badan waxay ahaanayaan kuwo qallafsan oo leh bifocals.
Si aad isugu daydo inaad si cad u aragto walxaha "dhex dhexaad" ah, dadka xidha laba-geesoodka ah waa inay madaxa kor iyo hoos u fooraraan, iyagoo si kale u eegaya xagga sare iyo ka dib hoose ee bifocalskooda, si loo go'aamiyo qaybta muraayadda si fiican u shaqeysa.
Muraayadaha horusocodku waxay si aad ah ugu dhow yihiin aragtida dabiiciga ah ee aad ku raaxaysatay ka hor bilawga presbyopia. Halkii laga siin lahaa kaliya laba awood lens sida bifocals (ama saddex, sida trifocals) , lenses horusocod ah waa run "multifocal" lenses oo bixiya si siman, horusocod ah oo aan kala go 'lahayn ee awoodaha lens badan oo aragti cad qolka oo dhan, ilaa dhow iyo dhammaan masaafada gudaha u dhexeeya
Aragti dabiici ah oo aan lahayn "boodbood sawir"
Xariiqyada muuqda ee laba-geesoodka ah iyo trifocals waa dhibco ay si lama filaan ah u dhacdo. Sidoo kale, sababta oo ah tirada xaddidan ee awoodda muraayadaha ee bifocals iyo trifocals, qoto-dheeraantaada muraayadahani waa xaddidan tahay. Si loo arko si cad, walxuhu waa inay ku jiraan masaafo gaar ah. Walxaha ka baxsan masaafada ay daboolayaan lens-ka laba-geesoodka ah ama saddex-geesoodka ah waa la lumin doonaa oo beddelmi doona awoodda muraayadda.
Lenses horusocod ah, dhinaca kale, waxay leeyihiin horumar siman oo aan kala go 'lahayn ee awoodaha muraayadaha si ay u helaan aragti cad meel kasta oo fog. Muraayadaha horusocodku waxay bixiyaan qoto dheer oo dabiici ah oo diiradda saaraya oo aan lahayn "boodboodka sawirka."
Awoodda muraayadaha horusocodku waxay si tartiib tartiib ah isu beddelaan min dhibic ilaa bar dusha muraayadda, iyagoo siinaya awoodda muraayadda saxda ah ee si cad loogu arko walxaha masaafo kasta.
Waxay bixisaa aragti cad dhammaan masaafada (halkii ay ka ahaan lahayd laba ama saddex masaafo kala duwan oo daawasho ah).
Aragtida ugu fiican, raaxada iyo muuqaalka, waxaad dooran kartaa waddooyin ballaadhan si aad u sahlan oo dhaqso leh ula qabsato muraayadaha horumarka jiilkii hore. Waxaad u guuri kartaa boggahttps://www.universeoptical.com/wideview-product/si aad u hubiso tafaasiil dheeraad ah oo ku saabsan naqshadaheenii ugu dambeeyay ee horumarka leh.