[Optic disc drusen. Communication 1. The possibilities of diagnosis].

The study enrolled 63 patients (108 eyes) suspected for optic disc drusen (ODD). ODD were found in 45 patients (83 eyes). Ophthalmoscopic study determined only visible superficial drusen, which accounted for 36.4% of all the found cases. The autofluorescence technique could reveal mainly superficial or shallow drusen in 70.1% of cases and differentiate pseudodrusen. The most reliable and sensitive diagnostic method was B-scanning that determined ODD in 100% of cases. However, B-scanning could not differentiate true drusen from pseudodrusen.