Innovative Microstent Design Offers New Hope for Glaucoma Treatment
A new, uniquely shaped microstent developed by Oxford researchers promises a less invasive, more durable solution for managing glaucoma by effectively reducing intraocular pressure and improving patient outcomes.
Researchers at the University of Oxford have developed a groundbreaking microstent that could significantly improve glaucoma management. Published in The Innovation, this device features a uniquely shaped, deployable structure designed to reduce intraocular pressure effectively. Glaucoma, a leading cause of irreversible vision loss second only to cataracts, results from elevated eye pressure damaging the optic nerve. Current surgical treatments involve invasive procedures, such as creating openings or inserting drainage tubes, which can be limited in durability and carry risks of complications.
The newly designed microstent measures less than 0.25 millimeters in diameter, allowing for minimally invasive insertion through a standard hypodermic needle. Once positioned inside the eye, it expands to bridge the space between the iris and the eye’s outer membrane, facilitating better fluid drainage. Initial trials in rabbits demonstrated rapid effectiveness, with the microstent lowering eye pressure within a month and showing minimal inflammation or scarring—outperforming traditional tubular implants.
Constructed from super-flexible nitinol, a durable nickel-titanium alloy with a proven safety record for ocular use, the microstent's design accommodates the eye's natural movements and changes over time. Advanced modeling guided its development to ensure optimal compatibility with ocular anatomy, enhancing both durability and efficacy. Experts believe this innovation could transform minimally invasive glaucoma surgeries by offering a more reliable and long-lasting solution.
Professor Zhong You, senior co-author, emphasized that the microstent’s unique properties help prevent movement and deformation, ensuring sustained performance. Dr. Jared Ching added that integrating mechanical innovation with biocompatibility could significantly improve patient outcomes and quality of life. With over half a million people in the UK affected by glaucoma, this device represents a pivotal step towards more effective and accessible treatments for the condition.
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