Do Blind People See In Their Dreams? - Born Blind vs Lost Sight -- Tommy Edison, who's been blind since birth, talks with Christine Ha (winner of @MasterChef S3), who lost her sight by age 27, to learn the differences between being born blind and becoming blind later in life. Tommy’s blindness is caused by an underdeveloped optic nerve and Christine’s blindness is caused by a rare autoimmune disease called Neuromyelitis Optica. #dreaming #dream #science #education #blind #vision #sleep #masterch