How can I be treated for double vision?

Exam by eye md. First it is crucial to rule out serious neurological disease that can cause diplopia. If stable , prisms in the glasses are the easiest method. Surgery to the eye muscles can also help. Some exercises like pencil pushups can be useful for intermittent diplopia .
Various. Patching (usually temporary), glasses (prism), fresnel prism, Botox (temporarily affect eye muscles), eye muscle surgery.