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does anyone know if there is a prenatal test for the disease achromatopsia or colorblindess

A 42-year-old member asked:
Dr. Renee Harris
36 years experience Obstetrics and Gynecology
No: There is not a test available for this. I would recommend discussions with a geneticist before conception to learn the risk of passing the gene on if ... Read More

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A 29-year-old member asked:
Dr. Jianhua Luo
38 years experience Pathology
Yes: Mutations in one of these several genes will cause colorblindness. These are autosomal recessive mutations. The genes are: achm2-alpha subunit of the ... Read More
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A 21-year-old member asked:
Dr. Barbara A Majeroni
Specializes in Family Medicine
Yes: They use a booklet or chart with pictures made up of dots of various colors. People who are color blind for certain colors will not be able to see the ... Read More
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Dr. Robert Kwok
32 years experience Pediatrics
Yes: Doctors can tell if a person is color blind by using the ishihara test. This test consists of 38 circles of colored dots. Each of the circles of dots ... Read More
Dr. Richard Bensinger
51 years experience Ophthalmology
Color charts: Most eye doctors own an ishihara color vision test booklet which can be used to determine if you are color deficient. There are other booklets as wel ... Read More
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A 45-year-old member asked:
Dr. Azhar Salahuddin
21 years experience Ophthalmology
No need to: It's a simple test where they show the child a book (called an ishihara) with numbers hidden within colored dots. He/she will be asked to identify the ... Read More
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A 42-year-old member asked:
Dr. Tim Conrad
33 years experience Ophthalmology
X-linked: The most common kind of colorblindness is inherited as a x-linked recessive trait. This gene that determines this is on the x chromosome, the one tha ... Read More
A 35-year-old member asked:
Dr. Richard Bensinger
51 years experience Ophthalmology
Color deficiency: This is an inherited alteration in the color pigment spectrum sensation of the light receptors of the eye. More common in males, it causes the person ... Read More
A 38-year-old member asked:
Dr. Jay Bradley
17 years experience LASIK Surgery
Color blindness: You either look an images or put a set of colors in order.
A 45-year-old member asked:
Dr. Bruce Saran
32 years experience Ophthalmology
Try this one: http://www.youtube.com/watch?v=cwyrp3hu4ke then go to your eye doctor. Patients can fail this test due to refractive error problems (need glasses ... Read More
A 37-year-old member asked:
Dr. Yash Khanna
56 years experience Family Medicine
COLOUR CHARTS: You show them a colour chart and ask them to name the colour.It is a simple test.
A 21-year-old member asked:
Dr. Robert Kwok
32 years experience Pediatrics
Usual test: Ishihara: The usual test for color blindness is the ishihara test, with 38 circles of colored dots. Each of the circles of dots contains a hidden number made up ... Read More

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