■ A person is legally blind (sometimes
called 20/200) when, with the
best correction of vision, can see at
20 feet what a normally-sighted
person can see at 200 feet.
■ Amblyopia, often called lazy eye,
occurs when the image from one eye
is suppressed as it travels to the
brain. Sometimes this condition is
treated by putting a patch on the
stronger eye so the “lazy” eye is
forced to work harder. This patch
may need to be worn for a few
months or even a year, and some times glasses also are needed. Early
treatment is essential; the younger a
child is, the more quickly his eye
will respond to treatment.