Profile overview
Who is John Marshall?
John Marshall is an inventor associated with United Kingdom. Their documented work in medical & dental includes Excimer-laser refractive-surgery technology, the contribution at the center of this evidence-backed profile.
Invented and patented excimer-laser technology for refractive-error correction and co-developed an ophthalmic diode laser system.
What did John Marshall invent?
inventor
What did John Marshall accomplish?
Excimer-laser refractive surgery became a globally deployed medical technology; Marshall's clinical profile cites more than 75 million procedures worldwide.
What is known about John Marshall today?
Moorfields listed Marshall in its 10 April 2025 Power List coverage as UCL's director responsible for enterprise and innovation; his Retina Clinic profile identifies a 2025–present research appointment.





