The present invention provides a method and device of measuring the retinal stray light in the eye of a subject, comprising presenting to the subject a flickering stray light from a stray light source; presenting to the subject compensation light so as to undercompensate said part of the flickering stray;...http://www.google.ca/patents/US7673991?utm_source=gb-gplus-sharePatent US7673991 - Method and device for measuring retinal stray light
