Bright Sight

Oliver Backhouse, Consultant Eye Surgeon www.cataract.org.uk

Fuchs Heterochromic Cyclitis

Fuchs’ Heterochromic Cyclitis (FHC) is a form of chronic uveitis that only affects one eye in approximately 90% of cases. The cause is unknown although recently there is good evidence that it is secondary to Rubella (Measles virus). As such there is no cure for it. Due to its chronic nature the colour of the iris in the affected eye can become paler and so the eyes take on a different colour from each other – this is called Heterochromia.

Occasionally Cataract and Glaucoma can develop and it is because of this that a regular 6 monthly review by an Ophthalmologist is necessary (Please see separate information leaflets on Cataract and Glaucoma in Uveitis). Many people do not have any symptoms and the problem may only be picked up on a routine visit to the Optician. In all cases of uveitis, the degree of inflammation can vary and so the symptoms of eye redness, irritation and floaters may present.

There is no direct treatment. Most Ophthalmologists avoid long-term steroid eye drops in cases of Fuchs’ Heterochromic Cyclitis as it responds poorly to the medication that in turn can give rise to Cataract and Glaucoma formation. Steroids are used in periods where the inflammation is giving symptoms that are significantly bothering the patient