Goniodysgenesis refers to abnormal and incomplete development of the intraocular fluid egrss channels inside the eye. This condition is common in dogs with primary glaucoma (basset hounds and many other breeds). Normal intraocular fluid (aqueous humor) is produced inside the eye by the ciliary body (faucet) and then flows around the lens, through the pupil and into the drainage angle (drain) in the front of the eye. The pectinate ligaments are small channels that form tunnels for fluid to drain from the eye.  If an animal has goniodysgenesis, the flow holes are compromised and the animal may have an increased glaucoma risk.