Last month we found out that Hannah has an astigmatism in her left eye (meaning her cornea is shaped like a football instead of a circle), and she had been doing most of her "seeing" with her 20/20 right eye. This made her left eye weak. Per doctor's orders, Hannah must wear this eye patch on her right eye for a half hour everyday, forcing her left eye to do all the work and get stronger.
We've been doing this for a month and Hannah just went in for her re-check on her eyes. The doctor said that it's working and she has improved one line level on the eye chart. We need to keep doing her eye patch work daily for the next year.
We use Hannah's "eye patch time" to work on workbook sheets and to do our daily Hooked on Phonics reading. This way we get 2 things done at once!