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Waa maxay muraayadaha Bifocal & sidee bay u shaqeeyaan?

Waxaa jira noocyo badan oo muraayado ah oo kala duwan oo maanta la heli karo, qaar badan oo iyaga ka mid ah ayaa fulinaya ujeedo isku mid ah ama xitaa ujeedooyin badan.Boostada blog-ka ee bishan waxaan kaga hadli doonaa lenses-ka bifocal, sida ay u shaqeeyaan, iyo waxa faa'iidooyinka ay u leeyihiin cilladaha aragga ee kala duwan.

Muraayadaha indhaha ee bifocal waxay ka kooban yihiin laba awood lens si ay kaaga caawiyaan inaad ku aragto shay meel fog ka dib markaad lumiso kartida aad si dabiici ah u beddesho diiradda indhahaaga da'da awgeed, sidoo kale loo yaqaan presbyopia.Shaqadan gaarka ah awgeed, muraayadaha bifocal ayaa inta badan loo qoraa dadka ka weyn da'da 40 si ay u caawiyaan magdhowga naafaynta dabiiciga ah ee aragga ee habka gabowga.

Iyadoo aan loo eegin sababta aad ugu baahan tahay rijeeto sixitaan aragga dhow, bifocals dhamaantood si isku mid ah ayay u shaqeeyaan.Qayb yar oo ka mid ah qaybta hoose ee muraayadda ayaa ka kooban awoodda loo baahan yahay si loo saxo araggaaga dhow.Inta soo hartay muraayadda inta badan waxaa loogu talagalay aragtida fogaantaada.Qaybta lenska ee loo qoondeeyay hagaajinta aragga dhow waxay noqon kartaa mid ka mid ah qaabab badan:

• Dayax nus - waxa sidoo kale loo yaqaannaa dabaq-sare, toosan ama qayb D
• Qayb wareeg ah
• Meel leydi ah oo cidhiidhi ah, oo loo yaqaano qayb ribbon ah
• Qaybta hoose ee buuxda ee muraayada laba-geesoodka ah ee loo yaqaanno qaabka Franklin, Executive ama E

Guud ahaan, marka aad xidhato lenses-ka laba-geesoodka ah, waxa aad eegaysaa kor iyo iyada oo loo marayo qaybta fogaanta ee lenska marka aad diirada saarayso meelaha ka fog, oo waxaad hoos u eegtaa oo aad eegtaa qaybta bifocal ee muraayada marka aad diirada saarayso akhrinta shay ama shay gudaha 18 inch ee indhahaaga ah. .Tani waa sababta qaybta hoose ee bifocal ee muraayadda la dhigo si xariiqda kala soocaya labada qaybood ay ku nasato dherer la mid ah kan daboolka hoose ee qofka xidhan.Haddii aad aaminsan tahay in lenses-ka laba-geesoodka ah, ama xitaa lenses multifocal horusocod ah, ay noqon karaan doorashada saxda ah ee daciifnimadaada aragga ka dib u soo gal Convox Optical maanta shaqaalaheena saaxiibtinimada iyo khibradda leh ayaa kaa caawin kara inay kugu hagaan doorashada ugu fiican ee muraayadaha iyo fareemooyinka.