Below are some terms I am most often asked about.

• Bodhi: traditionally being translated as 'enlightenment'. Bodhi is the opposite of ignorance, the insight into reality which destroys mental afflictions and brings peace.
  
  Note: There are many similar definitions of Bodhi, but I found this one particularly fits Bodhi (the dog) the best.
• Congenital: a congenital disorder is a medical condition that is present at birth. A congenital disorder can be recognized before birth (prenatally), at birth, or many years later. Congenital disorders can be a result of genetic abnormalities, the intrauterine environment, or unknown factors. A congenital condition can arise from the genetic make-up of the fertilized egg or be acquired at any time during fetal development. The causes of many congenital disorders are not known.
  
  Note: Bodhi's sibliings did not appear to suffer from blindness, but since he was bred by a "backyard breeder" it is not possible to know if any of his siblings have hydropcephalus. Since his hydrocephalus is congenital, it is likely that at least some of his siblings have neurological disorders as well - either genetically or due to the intrauterine environment.
• Hydrocephalus (water-head, term derived from Greek): an abnormal accumulation of cerebrospinal fluid in the ventricles of the brain. This increase in intracranial volume results in elevated intracranial pressure and compression of the brain.
• MRI: Magnetic resonance imaging (MRI) - also called magnetic resonance tomography (MRT) - is a method of creating images of the inside of opaque organs in living organisms. It is primarily used to demonstrate pathological or other physiological alterations of living tissues and is a commonly used form of medical imaging.
• Seizures (or convulsions): temporary alterations in brain function expressing themselves into a changed mental state, tonic or clonic movements and various other symptoms. They are due to temporary abnormal electrical activity of a group of brain cells.