Is celiac disease and iritis related?

usually not: Only a handful of case reports. Here is the reference: http://www.Ncbi.Nlm.Nih.Gov/pubmed/22408231.

a little bit: The article dr. Liao references is a case-control study that measured the rate of uveitis (inflammation in the front of the eye, including the iris), in people with celiac disease (cd). The rate of uveitis was about 30% higher in cd patients than expected in a similar group of people who do not have cd (range 0-50%). The risk of uveitis is very low - 4 per 10, 000/yr, increasing to 5 with cd.

Very rare occurrence and likely an unusual autoimmune association. More common is small fiber neuropathy and B-12 deficiency