In Ithaca, New York, there is a vet, Dr. Michael A. Ball.
His site says virtually nothing of him, but has a nice picture of him and his partner, Dr. Christina Cable, on each side of a horse. All three look wholesome.
Their Early Winter Equine Medicine & Surgery is in the business of:
"Providing all levels of care for the
performance horse including: internal medicine,
surgery, lameness, pre-purchase examination,
ophthalmology, foal care, special
pharmaceutical formulation, continuing
education lectures & publication, and
consultation."
I found out from other sources that he is the author of
Understanding Basic Horse Care (ISBN 1581500041) and
Understanding the Equine Eye: Your Guide to Horse Health Care and Management (ISBN 1581500327). Both are 1999 books from Eclipse Press and available from Amazon and Wal-Mart.