There is no medical or homeopathic medicine which clears cataract. They are only money making scams. You can offer lacs of rupees but only after it has worked not just claims. YAG laser should help you in few hours and the opening will not close after that provided it has been done well. Transient complications are raised eye pressure and some problems with retina (macular oedema, detachment) but they are rare. If your vision is poor now, it is worth taking this risk. You seem to be worried unnecessarily and I am sure you will be fine provided there is no other problem with your eyes. There is no harm in using your eyes for reading, computer etc. Make sure your spectacles are up to date now or after YAG laser. Posterior capsular opacification is a known and frequent complication.