This is when the natural lens has been removed from the eye (such as after cataract surgery) but has not been replaced with a new lens implant. In the early days of eye surgery, cataracts were removed but not replaced with anything. The vision was better but “aphakic people” required thick coke-bottle glasses to see well. Today, most people receive a new implant so aphakia is rare. Most people with aphakic eyes have had some kind of trauma or complicated cataract surgery that precludes the placement of a modern lens implant.