Medical & Dental

John Marshall

Excimer-laser refractive-surgery technology

United KingdomEvidence: high confidenceChecked July 2026

Public human-only clinic profile portrait; no open reuse licence is asserted.

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.

Known forExcimer-laser refractive-surgery technology
FieldMedical & Dental
Associated withUnited Kingdom
Evidence reviewed3 sources
01

What did John Marshall invent?

inventor

02

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.

03

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.