Camden Clinical Commissioning Group (CCG) is consulting on plans to move Moorfields Eye Hospital to St Pancras.
The plans have been proposed as part of a plan to house the hospital, the UCL Institute of Ophthalmology and Moorfields Eye Charity on the same site - earmarked to be the old St Pancras Hospital.
A public consultation will run until September 16.
The CCG argues the current - century old - site of the hospital in City Road, Islington is not able to keep up with advances in medical technology.
David Probert, chief executive of the hospital, said: "This is a crucial milestone in our ambitious proposal to design, build and operate a new, integrated eye care, research and education facility.
"Our ability to provide modern, efficient and effective treatment is achieved despite the limitations of our century-old City Road site, which sometimes means that patients do not always get the best care, delivered in modern ways."
If the plan gets the go-ahead after consultation, the new site could open by 2025.
The consultation can be viewed at oriel-london.org.uk/
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