When I examined Mr W at the slit lamp, the lens implant was only partially visible – dehiscence of the zonular fibres meant that the implant was no longer suspended in its intended position,

Mr. Hoagland, who became blind about four years ago, projected deep-seated sadness in describing the challenges he faces of pouring coffee, not missing the toilet, locating a phone number, finding the food on his plate, and knowing to whom he is speaking,