Erayga "aphakic" waa tilmaame tilmaamaya maqnaanshaha ama luminta muraayadda dabiiciga ah ee crystalline ee isha, sida caadiga ah sababtoo ah qaliin ama dhaawac. Eray bixinta caafimaadka, waxa ay si gaar ah ula xidhiidhaa xaalad ah in isha qofku aanay lahayn muraayad, taas oo iman karta qalliinka caadka ka dib ama maqnaanshaha lens-ka ee lagu dhasho. Erayga "aphakic" waxaa caadi ahaan loo adeegsadaa cilmiga indhaha si loo qeexo xaalada isha ka dib marka la saaro muraayada, waxaana badanaa loo adeegsadaa doodaha la xiriira lenses-ka indhaha (IOLs) ee loo isticmaalo in lagu beddelo muraayadda dabiiciga ah xaaladaha meesha laga saaray.