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It could also be the symptoms of an ocular migraine which gives similar symptoms and is self-limited and goes away on its own. In that case, they could have done anything and it would have gotten better.
A few hundred years ago, itinerant healers in India would go town to town and "cure" cataracts by sticking a needle in the persons eye and swirling it around. It is called couching a cataract. They left behind a trail of people with infections and retinal detachments. I find that interesting, too but would recommend trying it.

From wikipedia: (http://en.wikipedia.org/wiki/Cataract_surgery)
Cataract surgery was known to the Indian physician Sushruta (6th century BCE), who described it in his work the Sushruta Samhita. This text describes an operation called "couching", in which a curved needle was used to push the lens into the rear of the eye and out of the field of vision. The eye would later be soaked with warm clarified butter and then bandaged.