Veterinary Insights: Eye and Heart Examination of Bornean Sun Bears
The sun bear is the least studied bear species globally,
with many aspects of their medical baseline data still unknown. Their distinct
differences from domestic species, such as dogs, make their care and study
particularly fascinating.
Last week, we completed a notable project involving
electroretinography (ERG) and echocardiography for sun bears. This work was
part of the health assessment focusing on the eyes and heart, especially for
seven older sun bears who may have age-related pathologies.
Echocardiography, or an echo test, employs ultrasound waves
to create detailed images of the heart. This method assesses the heart's
structure and function, identifies abnormalities, and monitors overall heart
health. Older animals, particularly captive wildlife, heart diseases are often
underdiagnosed. We are pleased to report that none of the bears we examined
showed signs of heart disease.
ERG is a diagnostic test that evaluates the electrical
responses of the eye’s light-sensitive cells—rods and cones—to light stimuli.
This test is crucial for diagnosing retinal functionality, particularly in
cases of chronic cataractous eyes.
We are grateful to the many local specialists who support
BSBCC in our wildlife health initiatives. Dr. Nadzariah Cheng (Animed
Veterinary Centre), Dr. Anthony Leong ( Shinzō
VetCardio), Dr. Chiang and his ophthalmology team (Hospital Duchess of
Kent) are generously share their expertise in caring for the sun bears. We are
also thankful to Mindray and Dr. Jessie Ho (Jesselton Animal Clinic) for
lending us their ultrasound equipment and Vcheck Analyzer, which were
instrumental in making this health assessment feasible.
Kudos to everyone involved in this important work for the
health of the bears!
Each piece of
knowledge gained from these examinations enhances our baseline data, aiding in
the broader conservation and healthcare of this amazing species.
