By the term amblyopia we mean each reduced visual acuity of an otherwise normal eye, that was not improved by using glasses due to abnormal visual development during childhood.
An eye with amblyopia is often referred to as " lazy eye ", but to highlight the lack of lesion we use the phrase "the doctor does not see anything, and the patient sees very little."
Thefrequency of amblyopia in the general population is quite significant and possibly a 5%. Generally, it concerns just one eye, but there are cases where it may be bilateral. Members of the same family may exhibit in some degree amblyopia, so probably there is a hereditary link.
The visual acuity of one amblyopic eye ranges from nearly normal to less than 0.5 / 10. The sooner amblyopia is diagnosed and treated, the greater the possibility of improved vision. Though, after the age of 7 the results of any treatment are usually poor.
Depending on the trigger that caused it, we distinguish the following types of amblyopia