| TCI | total cerebral ischemia; transient cerebral ischemia; transcobalamin I |
|---|---|
| CBBM | color blindness, blue mono-cone-monochromatic type |
| CRB | chemical, radiological, and biological; congenital retinal blindness |
| CSNB | congenital stationary night blindness |
| IAPB | International Association for Prevention of Blindness |