摘要: Abstract The examination results of the tritanomal, Mrs. F., whose father is a tritan subdichromat, and her closest relatives are described in detail view rarity congenital tritanomaly. No further affected members were found family so that source defect remains unknown. A recessive sex-linked inheritance not likely. F. obviously heterozygous for An aquired as symptom an inherited eye disease could be excluded by thorough ophthalmological investigation sons lack history such diseases close relatives.