The French who encountered certain remarkable dogs in Louisiana spoke of their haunting “glass eyes.” The eyes looked strangely artificial, but the fact is that in Catahoula Leopard Dogs, bluish white eyes with a cracked glaze appearance aren’t uncommon – still, it unnerved the French. It’s also common for Catahoulas to have just one glass eye (the other being brown or amber), to have glass eyes that also have colors within the blue referred to as “cracked glass” eyes, or “marbled glass” eyes (heterochromia) that occurs when both colored and glass portions are present in the same eye.
Cracked eyes may be half of one color, and half of another, or they may just have a streak or chip of another color. Eye color is just the work of the Merle gene in this breed, and has nothing to do with the rarity or value of the dog. No particular eye color is typical of Catahoulas.
Image of “glass eyes” found on Pinterest and happily credited upon receipt of information.