Prevalence of Keratoconus in Inflammatory Bowel Diseases

Prevalence of Keratoconus in Inflammatory Bowel Diseases

A retrospective study has shown the association between the inflammatory bowel diseases (IBD) and the presence of a keratoconus. This new study will measure the prevalence of keratoconus and follow its activity in patients affected by IBD and followed up in hepatology-gastroenterology department at Nancy Hospital. The prevalence of keratoconus will be compared to known data of literature about general population.

The secondary purpose is to search for a relationship between the presence of a keratoconus and activity criteria of IBD.

Perspectives are a systematic screening for keratoconus in patients affected by IBD with the amelioration of the ophthalmologic care of IBD patients and confirmation of the recent hypothesis of inflammatory origin of keratoconus.

Inclusion Criteria:

• Informed consent
• Affiliation to social security plan
• Diagnosis of IBD since more than 3 years, under treatment or not

Exclusion Criteria:

• Protected person
• Pregnant or breastfeeding women
• Person in life-and-death emergency
• Person deprived of liberty
• Refusal to remove contact lenses, where necessary