From SNPedia
| ? | (A;A) (A;G) (G;G) |
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This snp is associated with sneezing from light exposure also known as "photic sneeze reflex".
A omim article gives this the name ACHOOS (Autosomal Dominant Compelling HelioOpthalmic Outburst Syndrome).
The research was performed by 23andMe and presented at the 2009 ASHG according to geneticfuture.
Due to its minus orientation, 23andMe considers this a C/T SNP, while dbSNP uses A/G. SNPedia users have been self reporting, and failed to find any consistent association with either of the homozygous forms. It seems we will need to wait for a publication to learn more about this snp.