TRICARE covers well-child eye exams from an optometrist or ophthalmologist. 1  Every two years. 2  Between the ages of three and six. 3  Includes screening for amblyopia (lazy eye) and strabismus (crossed eyes)  No cost for well-child exams, regardless of plan.
In the US, the criteria for legal blindness are: Visual acuity of 20/200 or worse in the better eye with corrective lenses (20/200 means that a person at 20 feet from an eye chart can see what a person with normal vision can see at 200 feet);
In the United States, any person with vision that cannot be corrected to better than 20/200 in the best eye, or who has 20 degrees (diameter) or less of visual field remaining, is considered legally blind or eligible for disability classification and possible inclusion in certain government sponsored programs.