Medical News Today -- Amblyopia, known as “lazy eye,” is a major cause of vision problems in children and a common cause of blindness in people aged 20 to 70 in developed countries. In amblyopia the person’s stronger eye is favored and his/her weaker eye gradually loses visual power as a result. When the condition is detected and treated before age 7, more than 75 percent of children achieve 20/30 vision or better, the Amblyopia Treatment Study reports. But parents and teachers can easily miss this problem - especially in very young children. Pediatric ophthalmologists (Eye M.D.s), pediatricians, family doctors and educators are looking for the best, most cost-effective ways to detect amblyopia as early as possible October’s Ophthalmology journal reports on Iowa’s KidSight program, the largest, longest study of the use of photoscreening to detect amblyopia in children aged 6 months to 6 years.