Lin Lung-kuang, director of the Vision Protection Center at National Taiwan University Hospital, says that most people with weak vision suffer from a congenital abnormality such as cataracts, clouding of the cornea, an unopened iris, or a high degree of congenital myopia, which prevents the normal development of vision.
台大醫院視力保健中心主任林隆光指出，弱視多半是先天畸形，如：白內障、角膜混濁、虹膜未開、先天高度近視… … 等等原因，使視力沒有良好的發育機會。