What is Cystoid Macular Oedema?
Sometimes the inflammation from the iris can spread and cause swelling of the retina at the back of the eye. The central part of the retina is called the macula. The macula is the bit of the retina used for sharp colour vision. If this becomes swollen with fluid (develops oedema) then it stops working properly. A child with cystoid macular oedema from iritis will have blurred central vision but with normal vision around the sides.
