In the absence of any responses from anyone here who's tried the drops, I've just spent nearly an hour trying to search for
reliable information about them.
Firstly, the sheer number of (obviously) fake review sites I've found, saying how wonderful they are, has set alarm bells ringing in my mind. Legitimate medical products don't need to be promoted in such ways.
Next, I've tried to find peer-reviewed research that shows that the drops are effective. There appears to be none. The drops have been patented by a Russian biophysicist, Professor Mark Babizhayev, but his claims for them don't seem to be back up by any research papers which have been subject to peer review.
The (theoretical) active constituent of the drops is N-acetylcarnosine, known as NAC. This paper, published by the US National Center for Biotechnology Information in 2017, concludes "There is currently no convincing evidence that NAC reverses cataract, nor prevents progression of cataract":
https://pubmed.ncbi.nlm.nih.gov/28245346/
This detailed 2018 UK review of the claims made for the drops ends with " . . . it appears that, for the time being, cataract surgery remains the only option for improving vision in patients with lens opacification":
https://www.eyenews.uk.com/education/the-truth-behind-the-headlines/post/the-truth-behind-the-headlines-aprmay-2018
Winfried Amoaku, Associate Professor of Opthalmology and Visual Sciences at the University of Nottingham, wrote this in 2008:
http://bmec.swbh.nhs.uk/wp-content/uploads/2013/03/N-ACETYL_CARNOSINE-FOR-CATARACTS.pdf
I'll leave it up to you as to whether you think it's worth giving them a try but I can tell you that, if I were in your position, I'd be saving my money and getting myself on the waiting list for surgery.