Data on the incidence of blindness in Lithuania are available. We analysed causes of legal blindness in Lithuania (population 3.488 million) in order to help fill in this gap. Methods: Population-based investigation on the incidence of legal blindness (visual acuity less than 1/50) based on materials from the social services. Age-dependent blindness incidences were mod- Data on the incidence of blindness in Lithuania are available. We analysed causes of legal blindness in Lithuania (population 3.488 million) in order to help fill in this gap. Methods: Population-based investigation on the incidence of legal blindness (visual acuity less than 1/50) based on materials from the social services. Age-dependent blindness incidences were mod-