The Farnsworth Lantern Test was used on sailors to diagnose this condition. It is more commonly diagnosed with the Ishihara test, which shows numbers within fields of dots. It
The Farnsworth Lantern Test was used on sailors to diagnose this condition. It is more commonly diagnosed with the Ishihara test, which shows numbers within fields of dots. It is caused by a lack of cone cells in the (*) retina, and is caused by genes on the X chromosome, making it more common in men. For 10 points, name this condition that comes in a red-green type, and causes sufferers to confuse pigments.
The Farnsworth Lantern Test was used on sailors to diagnose this condition.