baby congenital cataracts

My son was born with dense congenital cataracts. By 2 months, and 2 surgery's both eyes had  a lens inserted. Vision had some improvement. After follow up appointments i was informed scar tissue was blocking vision in both eyes. Noah then went for surgery on his left eye for scar tissue removal. After surgery, i noticed no improvement. We began patch work at 2 hours a day. Last week Noah was diagnosed with ambylopia in his left eye.
Noah is set for scar tissue removal on his right eye in one week. With no sight in his left eye, my question is will he now lose all sight in his right eye as well?
To ask bluntly, does my child have to be blind until the adult lens are inserted when he is 4 years?
Or should i leave the right eye as is?
Please elaborate on your response.
Thank you immensly.
Chassie

[John C Hagan III, MD, FACS, FAAO]

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