Scleral tattooing including blindness, of the procedure and warns that it should not be performed without a professional. Scleral tattooing is still a new body modification, and potential longterm effects have therefore still not manifested themselves. In 2009 the Oklahoma Senate passed Senate Bill 844, filed by Oklahoma Senator Cliff Branan and supported by the Oklahoma Academy of Ophthalmology, to make it illegal to tattoo the sclera of the eye. Scleral tattooing Scleral tattooing is the practice of tattooing the sclera, or white part of the human eye. The dye is not injected into the tissue, but between two layers of the
Collie eye anomaly Collie eye anomaly Collie eye anomaly (CEA) is a congenital, inherited, bilateral eye disease of dogs, which affects the retina, choroid, and sclera. It can be a mild disease or cause blindness. CEA is caused by a simple autosomal recessive gene defect. There is no treatment. It is known to occur in Scotch Collies (smooth and rough collies), Shetland Sheepdogs, Australian Shepherds, Border Collies, Lancashire Heelers, and Nova Scotia Duck Tolling Retrievers. Frequency is high in Collies and Shetland Sheepdogs, and low in Border Collies and NSDTRs. In the United States, incidence in the genotype of collies has been estimated