Brief Answer:
You need to consult paediatric ophthalmologist.

Detailed Answer:
Hello
Welcome to Health care Magic.

I am Dr. Dadapeer K, an ophthalmologist and I answer health problems related to eye.

I reviewed your history.
It seems from the history that your son is having refractive error in the form of myopic astigmatism in right eye and simple myopia in left eye.
I can understand your concern but no need to be worried as this can be treated.

Refractive errors are common problems of eye seen in childhood. Most of them occur randomly because of difference in the growth of eye ball. Positive family history is not a requirement and they can occur even in the absence of family history also.
Unequal refractive errors can lead to development of ambylopia. But since the refractive error is diagnosed early treatment can prevent development of ambylopia and it can reverse it also. You should not do further delay now.
Hence first thing to be done is to consult a pediatric ophthalmologist for examination and confirmation of diagnosis and if there is ambylopia treatment in the form of occlusion therapy should be started.
Hence you need to meet paediatric ophthalmologist at the earliest.
You can consult Samprathi Eye hospital which treats eye problems in children in XXXXXXX

Dietary supplements rich in vitamin A like green leafy vegetables are helpful. Watching T.V. can be done. But it should be done from a distance of at least 6 metres or more.

Hope I have answered your questions and it is helpful to you.

Do write back to me after consulting paediatric ophthalmologist.

Thank you
With regards

---