PROLAPSE OF THE TEAR GLAND OF THE THIRD EYELID
The normal canine eye receives its tear film from two lacrimal
(tear-producing) glands. One gland is located above the eye and the other is
found within the animal's third eyelid. The gland of the third eyelid
contributes a significant portion of secretion to the tear film.
In the smaller breeds -- especially Boston terriers, Cocker spaniels,
bulldogs and beagles -- the gland of the third eyelid is not strongly held
in place. The gland prolapses out to where the owner notices it as a
reddened mass. Out of its normal position, the gland does not circulate
blood properly and may swell.
TREATMENT - REMOVAL OF THE GLAND
In older times, the prolapsed gland was treated like a small tumor; it was
simply removed. This was before the full significance of the gland was
realized.
If the third eyelid's tear gland is removed, it cannot be put back. If
the other tear gland cannot supply adequate tears (not uncommon in older
small breeds) then treatment for "dry eye" must be instituted. Not only is
dry eye uncomfortable for the pet, its treatment is often frustrating and
time-consuming. We would like the dog to maintain the greatest amount of
functioning tear producing tissue possible and this means replacing the
gland in its proper location.
TREATMENT - REPLACING THE GLAND
This surgery is the only acceptable treatment of "Cherry Eye." Here, the
gland is gently sewn back into place where it can resume tear production.
The patient stays in our hospital over night so that the suture position may
be checked in the morning.