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Investigating the pathogenetic mechanisms leading to glaucoma surgery failure & development of new targeted therapeutics

In plain English

AI plain-English summary

Half of all glaucoma surgeries fail within a year because scar tissue blocks the new drainage channel the surgeon created. Glaucoma blinds millions worldwide by damaging the optic nerve, often due to fluid pressure building up inside the eye. Surgery creates an artificial drainage route to lower that pressure, but scarring—the body’s natural wound-healing response—closes the route in roughly 50% of patients within five years for traditional trabeculectomy, and within just one year for newer minimally invasive procedures. The underlying biological reasons why some patients scar aggressively while others do not remain unknown. This project will use advanced molecular and cellular techniques to identify the specific mechanisms driving severe scarring after both types of glaucoma surgery. If successful, it will reveal which patients are at highest risk and why, and point toward targeted treatments—drugs or biological agents—that could prevent scar formation without the side effects of current broad-spectrum anti-scarring drugs. The result would be a dramatic reduction in repeat surgeries and irreversible vision loss, changing the standard of care for the millions who undergo glaucoma surgery each year.

View original technical description
Glaucoma is a major health problem and blinds millions of people worldwide. Glaucoma surgery is used to prevent blindness but traditional glaucoma surgery (trabeculectomy) fails primarily due to scarring in 50% of patients after 5 years of follow-up. There has been an unexpected paradigm shift in the types of glaucoma surgeries performed worldwide. New surgical techniques, called minimally invasive glaucoma surgery, have been developed in glaucoma in the last few years, and is replacing trabeculectomy surgery worldwide. Similar to trabeculectomy, the new surgical techniques also fail due to scarring and have an even higher failure rate of 50% after 1 year of follow-up. I will use new powerful technologies to investigate why a large subgroup of patients develops severe scarring and irreversible loss of vision after glaucoma surgery (trabeculectomy and minimally invasive glaucoma surgery). Using this knowledge, I will develop new treatments to prevent this from happening.

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Researchers

Cynthia Yu-Wai-Man (Principal Investigator)

Related Research

Grants with similar aims, by meaning.

Investigating the pathogenetic mechanisms leading to progressive scarring and glaucoma surgery failure
Investigating the pathogenetic mechanisms leading to progressive scarring and glaucoma surgery failure and development of new targeted therapeutics
Inflammation-mediated conjunctival scarring: investigating basic molecular mechanisms to improve glaucoma surgery outcome
Enabling precision management of glaucoma through discovery of underlying biological pathways and clinical prediction tool development
Combined in vitro and ex-vivo model to design novel combinatorial strategies for the modulation of scarring

Original classification

Fellowship

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