“…It is hypothesized that BP therefore have a homogenous cor- neal nerve fiber density distribution; however, further histology studies of corneal nerve anatomy are warranted. In human and veterinary medicine, changes in CTT values have been associated with a large number of factors such as: gender, coat, and iris color 10,13 skull type, 6 mental status, hormone cycle, 30 use of contact lenses, 17,18 ultraviolet light exposure, 31 diabetes, 32,33 herpetic keratitis, 34 and health status. 7 Age has been considered to be one of the most determining factors for CTT values in animals and humans.…”