Learning Braille As A Medical Student

Hi guys, I am a final year medical student about to graduate to become a foundation doctor.

I have an interest in specializing in opthalmology/vision and I have some spare time at the moment so I am picking up brialle as a hobby and something that I could potentially use in my specilization.

I have a few questions about brialle:

1. I was wondering what is the current consensus on braielle? Is it still being used in the current age with advancement in technology/medicine, especially with the use of audioguides and audio books, as well as surgical intervention to recover vision? 2. Any online resources I should start with (youtube, ebooks, pdf guides, etc)?

Thanks for all the replies in advance and hope to graudate soon.