A:Cribbing is when a horse places its front teeth on a horizontal surface, arches its neck, and pulls backwards. This behavior is usually associated with a grunting noise as the horse gulps air, and is often referred to as wind sucking or aerophagia. This is a vice that many stalled horses pick up because of boredom.
For the wet form of macular degeneration, injections of Macugen, Lucentis, Avastin or Eylea are made directly into the eye. The above-mentioned cancer drug Avastin is considerably less expensive and appears to produce similar results in macular degeneration treatment, though it is not FDA-approved for this use. The Lucentis vs. Avastin debate continues while an ongoing clinical trial compares outcomes and safety of the two treatments.
And it was at this time that we got more of a sense for Dad's macular degeneration causes. The purpose of the Avastin macular degeneration treatments is to stop the bleeding behind the retina in the center of the eye, which is what happens with the wet type. If left unchecked, the eye is damaged, scarring can occur, and central vision is permanently lost. This is what happened with Dadâs left eye.