We tend to take our sight and our eyes for granted!
"The eyes are the window of the soul." - English Proverb
As a photographer, no prize for telling what is your most precious sense!
May be I should have taken better care of my eyes?
I noticed my right eye was going out of focus two years ago and it turn out that I had a Retinal Detachment!
According to Wikipedia: Retinal detachment is a disorder of the eye in which the retina peels away from its underlying layer of support tissue. Initial detachment may be localized, but without rapid treatment the entire retina may detach, leading to vision loss and blindness. It is a medical emergency.