I have a Stepdad who is blind. Most "blind" people are "technically" blind, which means they can see blurs and use guide dogs etc to assist them getting around. They just can't see details.
My stepdad has no eyes - they've been removed by surgery because his retina's detached completely.
He still see's blinding lights in his brain (a rare neurological disease that effects a small number of blind people) which keep him awake. So as well as not being able to see a thing he is being driven slowly insane as well.
On top of that, the British Government don't see blindness as a real disability. After all, people who are blind can do braille etc and get jobs - so they pay 25% of what they would pay if you say, had no legs
That's all well and good if you're like that from childhood, but when you turn blind aged 50 it's a bit harder. Good luck finding the funding to have you re-trained and taught braille cos that doesn't exist. You have to fund all that yourself on 25% disability allowance.
So you can't get a job, you can't pay for anything and you can't be retrained. You may as well pack it in and kill yourself.
I have a mate, who has no sense of smell. Absolutely none. He had operations in his 20's which f**ked his nasal passages up prevent him from smelling unless he is on really strong steroids. His lack of smell doesn't prevent him from running his own company, driving a car or generally getting on with life
On balance, I know which one I could do without
1. Sight (cos Stepdad)
2. Hearing (cos music)
3. Touch (see 4 for explanation)
4. Taste (been there and it ain't as bas an not being able to wank)
5. Smell (Cos people with BO on public transport)
