BVA/KC/ISDS GonioscopyGonioscopy is an eye examination, separate from the routine eye examination (BVA/KC/ISDS Eye Scheme), done to detect glaucoma predisposition (how likely the eye is to develop glaucoma). The gonioscopy test should be done every three years.

Details about the disease

Glaucoma is characterised by pressure on the eye, which is caused by inadequate drainage of fluid from inside the eye. If left untreated the optic nerve will be permanently damaged, resulting in blindness.

Primary glaucoma is an inherited condition. Secondary glaucoma is caused by other eye diseases (e.g. lens luxation) that lead to improper drainage of fluid from inside the eye.

Clinical signs

Clinical signs include cloudiness at the front of the eye, red eyeballs, vision loss and dilated pupil. Your dog may rub their eyes, squint and flutter their eyelids.

How it is inherited

Primary glaucoma is described as an autosomal recessive condition. This means that a dog must inherit two copies of an abnormal gene (one from its mother and one from its father) before its health is affected. A dog that inherits only one copy of the abnormal gene (from its mother or its father) will have no signs of the disease, but will be a carrier and may pass the gene on to any offspring.

There is currently now a DNA test for the predispostion for severe Gonioscupoy/primary glaucoma in the Border Collie. Details can be found <here>

Where can I find more information about primary glaucoma and Gonioscopy?

DNA Test can be found at

An information leaflet can be found at

More Information

More information can be found at
The BVA website can be found at

Other schemes & tests currently available:

BVA/KC Hip Dysplasia Scheme

BVA/KC/ISDS Eye Scheme

DNA test - CEA/CH

DNA test - CL

DNA test - TNS

BVA/KC/ISDS Gonioscopy

The list above is not necessarily comprehensive, other available health tests can be found <here>