ON 12/31/04 MY SON AND I WERE ON A BOAT IN FLORIDA DURING A SUNNY AFTERNOON. HE LOOKED UP AT THE SUN AT ONE POINT AND REMARKED HOW STRONG IT WAS THEN COVERED HIS EYES WITH HIS HEAD DOWN. WHEN HE LOOKED AROUND AFTERWARDS HE NOTICED THAT HE COULD ONLY SEE BLACK,WHITE AND SHADES OF GRAY WITH HIS RIGHT EYE. I THOUGHT THAT IT WOULD GO BACK TO NORMAL AFTER WE GOT BACK IN THE SHADE. IT'S BEEN A WEEK NOW AND HIS STILL HASN'T GOTTEN HIS COLOR VISION BACK. WE VISITED HIS DR.THIS PAST THURSDAY, HIS EYE LOOKS NORMAL AND THE DOCTOR HAS NEVER SEEN ANYTHING LIKE THIS. HE HAS SCHEDULED A CAT SCAN FOR THIS WEEK TUESDAY AND AN APPOINTMENT WITH A RETINAL OPHTHALMOGIST ALSO. I HAVE BEEN UNABLE TO FIND ANY INFORMATION ON THIS CONDITION ANYWHERE ON THE WEB NOR DO ANY OF THE DOCTORS OFFICES HAVE ANY PRINTED INFORMATION ON THIS ISSUE. HAS ANYONE SEEN THIS CONDITION BEFORE? DOES ANYONE KNOW A WEB ADDRESS WHERE THIS TYPE OF VISION LOSS IS DISCUSSED. I HAVE BEEN ON SEVERAL, IE: NATIONAL EYE INSTITUE, PREVENT BLINDNESS, MAYO CLINIC, MEDLINE,NLM GATEWAY SEARCH, JUST TO NAME A FEW. I WOULD APPRECIATE ANY HELPFUL SUGGESTIONS, ...PLEASE! :confused:

Sounds like he has Acquired Color Deficiency. If so, it could've been caused by numerous things:

trauma to the head
disease, such as diabetes
optic nerve damage, (retinopathy, optic neuritis, neuropathy, optic nerve lesions, ganglion cell and retinitis pigmentosa)
toxic exposure (to chemicals like solvents used in dry cleaning for example) toxicity of certain medications, and there are alot that qualify!

If your son got this by staring at the sun then it sounds like he damaged the optic nerve. You are headed on the right track! Good luck :)