ICL Process with Nearsightedness?

Hi, I have nearsightedness with power Left eye -24 and right eye -20.From few days , i am facing floaters and flashed in my both the eyes. I have been checked with Doctor and they are saying that LASIK is not possible for my eye. ICL can be possible. My question is.. is it needed to do surgery for my eye now as floaters and flashes( vitreous detachment) happened. please suggest Thanks, N

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