My dad was born with dark brown eyes (he's Asian) but over the years, his eyes have lightened in color. They're a bluish-hazel now. Why is this? And his vision hasn't been affected by this ...
Do some people just lose melanin?
2006-10-20 22:25:58 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
oh.. your dad is same with my grandma... my grandma was born with green eyes... but when she turned 20... it turned hazel brown... by the time she was 50 it gradually turned greyish...
According to her doctor... it the DNA or the genes that causes this... no food or environment causes this,... its just your cells on your iris.. trying to alter its genes... well.. medicine has not found yet the answer why they alter their genes....the color of the iris will not affect vision...
melanin is found on the skin not likely on the eyes.,.. if people lose melanin... they become milky white... melanin production is exhibited if the skin is exposed to uv rays... as defense mechanism.... that is why when you go to the beach, expose yourself under the sun.. you become tan...
2006-10-20 23:17:34 · answer #1 · answered by guapito_azucar 2 · 0⤊ 0⤋
Huh I've never heard of people's eye color changing at all, but I do think I've heard of an albino who was born with eyes that have no pigment, and white skin. Over time that person regained their pigment gradually, and looked like an average person.
The only way my eye color changes is if I put color lenses on, or if bright light shines against my eye.
2006-10-21 05:28:47 · answer #2 · answered by John Doe 2 · 0⤊ 0⤋
some people just change there character and that simply will do it. It is widely known that people with schizophrenia when they change their personality their eyes will also change colour too. Your dad just probably got mellow in his older years of life that is all. He must have kinder eyes now?
2006-10-21 05:29:25 · answer #3 · answered by sarell 6 · 0⤊ 1⤋
When some peoples moods change their eye color changes as well. I think that's nature, if you have dark eyes its not so noticeable.
2006-10-21 05:29:47 · answer #4 · answered by spatz 3 · 0⤊ 1⤋
biological cemical changes
2006-10-21 05:28:38 · answer #5 · answered by brandonbamboo 2 · 0⤊ 0⤋
maybe your dad is wearing contacts
2006-10-21 05:28:24 · answer #6 · answered by Ö I ^Çarê Ö 4 · 0⤊ 0⤋