Vocabulary What does 両眼 (りょうがん, ryougan) mean? 両眼 (りょうがん, ryougan) means both eyes. Quick factsReadingりょうがんRomajiryouganPart of speechnoun 両眼りょうがんryouganboth eyes1noun both eyesKanji in this word両both; both sides眼eye, eyeball