How does Keratoconus affect vision?
Keratoconus affects each person differently. Commonly reported visual symptoms include: • problems with glare (finding light painful and/or disabling – not just bright lights) • double vision (often confusing or embarrassing) • multiple images (which people find very troublesome) • ghosting • halos and stars around lights • floaters – black dots floating across vision • Difficulty adapting to changes in light levels. In addition people with keratoconus may find that distortion of vision causes : • difficulties in judging depth and distance • problems on stairs, or coping with changes of level underfoot • blurring of straight lines – one person may look at the letter H and see the verticals (the strokes which go up and down) clearly but find the horizontal stroke (which goes across) blurred. Another person may see the reverse, and yet others may see what looks like a letter N. This can cause problems in a world full of straight edges. Where people have corneal scarring they may have pat
