IDENTIFIKASI POLA PEWARISAN SIFAT BUTA WARNA PADA KELUARGA DENGAN ANAK TUNGGAL LAKI-LAKI

Abstrak

This study aims to determine the experiences of an only child with color blindness, explore the extent of his knowledge of the causes and inheritance of color blindness, and determine its impact on daily activities. Color blindness is a genetic disorder in the retinal photoreceptor cells that causes difficulty distinguishing certain colors, especially red-green, and is more often experienced by men because the carrier gene is located on the X chromosome. This study uses a qualitative approach with a phenomenological method to explore the meaning of the subject's experience in depth. The subject is a 20-year-old man with partial red-green color blindness and was selected purposively. Data were obtained through filling out a questionnaire that covered color recognition experiences, genetic knowledge, and social impacts. The results showed that the subject had difficulty distinguishing red and green, especially when recognizing electrical cables and indicator lights. The subject knows that color blindness is a genetic disorder inherited through the X chromosome and is more common in men. This knowledge was obtained from biology lessons at school and family information. Despite his limitations, the subject is able to adapt by using signs or the position of objects as a substitute for color recognition and demonstrates positive self-acceptance.