12/01/2025
Vitamin E Deficiency and Sorbet.
You may remember Sorbet, the mare who came to us severely neglected and only days away from foaling. After weaning her foal and beginning some groundwork training, Sorbet found a wonderful new home where her training could continue.
While in our care, Sorbet was kind but cautious, especially when people approached her. She responded to training but carried a noticeable amount of tension in her body—common for horses that have been handled roughly or not at all.
At her new home, that tension persisted. Sorbet would rush through doorways in a panic when going in and out of her stall. As her training progressed, it became clear she would be a challenging riding prospect, so she returned to us.
Back in our care, we decided to have her eyes examined, as something about her vision seemed off. The results revealed that while Sorbet has vision in both eyes, she suffers from abnormal honeycomb-like pigment deposits on the fundus (the back of the eyes). This was caused by long-term Vitamin E deficiency due to starvation, which damaged some of the specialized retinal cells responsible for converting light into the electrical signals the brain uses to create vision as well as allow an excessive buildup of dark pigment.
The damage, combined with her body’s inability to break down the excess pigment, has left Sorbet with severely obstructed vision. Although she can see, her world looks like fragmented images lined with dark edges, which her brain struggles to process. This affects her depth perception and other key aspects of healthy vision—no wonder she has remained so tense!
Since her arrival, Sorbet has been on daily multivitamins, but it wasn’t enough to address her severe deficiency. Three months ago, we started her on a high-dose liquid Vitamin E supplement. Her Vitamin E levels have improved but are not yet within the normal range. Once they are, we’ll recheck her eyes to determine if her body has been able to regenerate healthy cells or reduce the pigment blocking her vision.
For now, Sorbet’s foster reports that she seems more relaxed. Beyond her vision, we know the Vitamin E deficiency affected many other areas of her body, and she must be feeling better overall.
The reality is that this gorgeous mare with her graceful movement will need to be a pasture companion. She requires an owner who understands that while she appears normal, her vision makes some things frightening. Despite her challenges, Sorbet would make a stunning and loving addition to any pasture.
If you’re interested in providing Sorbet with a forever home, please contact us at [email protected].