The purpose of this study is to test the existence of an increased risk of cataracts among interventional cardiologists as compared to cardiologists not exposed to X-rays.

This cross-sectional study includes cardiologists aged > 40 years: a group of interventional cardiologists (coronary interventionists and electrophysiologists) and a group of unexposed workers (including cardiologists). Individual information, including risk factors of cataracts (age, diabetes, myopia, etc. ...), are collected during a telephone interview. For the exposed group, a specific section of the questionnaire is focused on the occupational history, the description of the procedures (type, frequency, radiation protection tool) and will be used for the classification into "comparable exposure level" groups according to estimates of cumulative dose. For all participants, eye examinations are performed to specifically detect cataracts even in the early stages (lens opacities, LOCS III according to the international standard classification).

Inclusion Criteria:

• aged at least 40 yrs old
• for interventional cardiologists: cumulated number of procedures > 2000

Exclusion Criteria:

• previous history of medical radiation exposure for radiotherapy or brain scans
• for non-interventional cardiologists: occupational history of interventional cardiologist

Interventional and non-interventional cardiologists from public and private French hospitals/facilities, both groups of cardiologists being matched for age and gender.