Prof. Marie-José Tassignon from Antwerp University Hospital (Belgium) has been a pioneer in YAG Laser Vitreolysis. These videos are an opportunity for Prof. Tassignon to share her experiences since the 1980s with this particular technique. Prof. Tassignon explains how to test and classify floaters, and how to thereby determine which patients are eligible for treatment. Prof. Tassignon's recommendations are based on her experience with colleagues wishing to start this treatment.