Color Blindness - - -
#31
Banned
Join Date: Aug 2014
Location: Victorian Sweatshop Forum
Posts: 4,096
Yes, for the most common forms women are the carriers of the gene and it's passed the same way hemophilia is. A woman passes it to her son. His sons won't have it but his daughters can pass it to their sons. One of my brothers and my son are color blind, though different forms of it. My brother can't tell blues and greens apart and my son can't tell different shades of red, green, yellow, brown and gold apart. Several forms of color blindness can be overcome by the person wearing one red contact lens. Pilots do this all the time. The eye doctor told me this when my son was diagnosed as a child. My son also has eagle vision, he can spot something from so far away that someone with normal vision can't see it and he can spot things in trees or brush way before anyone else can.
Cari
Cari
#32
Senior Member
Join Date: Sep 2011
Posts: 683
According to my eye doctor many people are COLOR DEFICIENT. They have trouble telling blue from green, etc. Only a very few are COLOR BLIND and see things like a black and white television. She says she corrects people all the time as they use the wrong terms. Both men and women can be affected and it is sometimes familial.
During WWII my Dad could see past the camoflague netting to the tanks underneath, now they use computers in planes, but he was very helpful using his excellent vision then.
During WWII my Dad could see past the camoflague netting to the tanks underneath, now they use computers in planes, but he was very helpful using his excellent vision then.
Last edited by LenaBeena; 08-16-2017 at 01:40 PM.
#35
Super Member
Join Date: Nov 2009
Location: jacksonville bch
Posts: 2,065
I'm not color blind, but after I had cataract surgery things are sure brighter. I had been using the brightest light bulbs, and now they are too bright. LOL My BIL sees everything as green, and he wanted a quilt. He told me the colors, and I made it. His wife was all upset about the colors, and was angry at me for following his colors. Too bad, I knew him before she ever came into the picture!!!!
#36
Senior Member
Join Date: Sep 2011
Posts: 683
[h=2]Color Blindness[/h][h=3]Definition[/h]Color blindness is an abnormal condition characterized by the inability to clearly distinguish different colors of thespectrum. The difficulties can be mild to severe. It is a misleading term because people with color blindness are not blind.Rather, they tend to see colors in a limited range of hues; a rare few may not see colors at all.
[h=3]Description[/h]Normal color vision requires the use of specialized receptor cells called cones, which are located in the retina of the eye.There are three types of cones, termed red, blue, and green, which enable people to see a wide spectrum of colors. Anabnormality, or deficiency, of any of the types of cones will result in abnormal color vision.
There are three basic variants of color blindness. Red/green color blindness is the most common deficiency, affecting 8%of Caucasian males and 0.5% of Caucasian females. The prevalence varies with culture.
Blue color blindness is an inability to distinguish both blue and yellow, which are seen as white or gray. It is quite rareand has equal prevalence in males and females. It is common for young children to have blue/green confusion thatbecomes less pronounced in adulthood. Blue color deficiency often appears in people who have physical disorders suchas liver disease or diabetes mellitus.
A total inability to distinguish colors (achromatopsia) is exceedingly rare. These affected individuals view the world inshades of gray. They frequently have poor visual acuity and are extremely sensitive to light (photophobia), which causesthem to squint in ordinary light.
Researchers studying red/green color blindness in the United Kingdom reported an average prevalence of only 4.7% inone group. Only 1% of Eskimo males are color blind. Approximately 2.9% of boys from Saudi Arabia and 3.7% from Indiawere found to have deficient color vision. Red/green color blindness may slightly increase an affected person's chances ofcontracting leprosy. Pre-term infants exhibit an increased prevalence of blue color blindness. Achromatopsia has aprevalence of about 1 in 33,000 in the United States and affects males and females equally.
[h=3]Description[/h]Normal color vision requires the use of specialized receptor cells called cones, which are located in the retina of the eye.There are three types of cones, termed red, blue, and green, which enable people to see a wide spectrum of colors. Anabnormality, or deficiency, of any of the types of cones will result in abnormal color vision.
There are three basic variants of color blindness. Red/green color blindness is the most common deficiency, affecting 8%of Caucasian males and 0.5% of Caucasian females. The prevalence varies with culture.
Blue color blindness is an inability to distinguish both blue and yellow, which are seen as white or gray. It is quite rareand has equal prevalence in males and females. It is common for young children to have blue/green confusion thatbecomes less pronounced in adulthood. Blue color deficiency often appears in people who have physical disorders suchas liver disease or diabetes mellitus.
A total inability to distinguish colors (achromatopsia) is exceedingly rare. These affected individuals view the world inshades of gray. They frequently have poor visual acuity and are extremely sensitive to light (photophobia), which causesthem to squint in ordinary light.
Researchers studying red/green color blindness in the United Kingdom reported an average prevalence of only 4.7% inone group. Only 1% of Eskimo males are color blind. Approximately 2.9% of boys from Saudi Arabia and 3.7% from Indiawere found to have deficient color vision. Red/green color blindness may slightly increase an affected person's chances ofcontracting leprosy. Pre-term infants exhibit an increased prevalence of blue color blindness. Achromatopsia has aprevalence of about 1 in 33,000 in the United States and affects males and females equally.
Thread
Thread Starter
Forum
Replies
Last Post