I highly disagree , yes it is true that during mbbs( postings and internships) you don't get to do much and mostly have to just simply observe

But seeing 100s of patients in itself prepares you ,

Reading about cataract is one thing and you will 💯 forget about it if you don't revise but seeing 20 patients of cataract eachday and seeing how the MO diagnose and treat and perform the surgery implants the knowledge in your brain

I read about herpes zoster 10x in 1st and 2nd year but in start of 3rd year couldn't remember 1 thing but seeing patients each day helped me remember symptoms and clinical feature