Researchers identify new drainage route behind mouse eyes
Scientists at the University of British Columbia and the University of Toronto discovered a hidden lymphatic drainage pathway in the back of mice eyes.
Study challenges century-old medical belief
The research team used fluorescent tracers to track fluid movement within the eye. Within minutes, these markers traveled from the back of the eye into nearby lymph nodes. This finding contradicts a long-held assumption that the eye lacks such a drainage system.
New vessels found in choroid tissue
Microscopy revealed small lymphatic vessels located in the choroid, a vascular layer under the retina. Previously, no lymphatic vessels were known to exist in this specific area of the eye. The study utilized MRI and near-infrared fluorescence imaging to map these new pathways.
Potential impact on glaucoma research
The posterior ocular lymphatic outflow pathway appears responsible for moving waste from behind the retina. This discovery offers a new lead for understanding fluid drainage issues in the eye. The results were published in Translational Vision Science & Technology.
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