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);
Different governments have different requirements for being legally blind. In North America and most of Europe, a person must have 20/200 vision (the equivalent to 6/60) or worse in their better eye WITH the best correction possible.Also, a person who has normal vision but an impaired visual field can qualify as legally blind.The normal visual field is 180 degrees, and the person must have 20 degrees or less.lso, a person who has normal vision but an impaired visual field can qualify as legally blind. The normal visual field is 180 degrees, and the person must have 20 degrees or less.