CR39

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