Dr. John Lean M.D., F.R.C.S., received his Doctor of Medicine degree at New College, Oxford University in England and completed his internship at both University College Hospital and Greenwich Hospital in 1973. Dr. Lean finished his residency at the world renowned Moorfields Eye Hospital in London followed by a vitreoretinal surgical and medical fellowship at Moorfields.
Dr. John Lean M.D., F.R.C.S., received his Doctor of Medicine degree at New College, Oxford University in England and completed his internship at both University College Hospital and Greenwich Hospital in 1973. Dr. Lean finished his residency at the world renowned Moorfields Eye Hospital in London followed by a vitreoretinal surgical and medical fellowship at Moorfields.
The reviews listed below were collected independently of Retina Associates of Orange County through rater8. Each review represents an authentic and verified patient experience.
He's terrific. Staff very nice.
(1 week ago)
Nov-2025
He is keeping me from going blind. What more can I say.
(1 week ago)
Nov-2025
Always attentive and helpful.
(2 weeks ago)
Oct-2025
He's fabulous. Saved my eyesight years ago and keeps an eye (not a pun) on my retinas.
(3 months ago)
Jul-2025
He’s right at the top of the list of best doctors I’ve ever seen.
(4 months ago)
Jul-2025
I have total confidence in him and
have for many years!
(4 months ago)
Jun-2025
He is always attentive and informative. Exceptional doctor. Thank you.
(6 months ago)
May-2025
Very good
(7 months ago)
Apr-2025
I couldn’t ask for better than Dr. Lean.
(7 months ago)
Apr-2025
Dr. Lean is the most caring surgeon I know.
(7 months ago)
Apr-2025
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Laguna Hills
23521 Paseo De Valencia Suite 207 Laguna Hills, CA 92653
Dr. John Lean M.D., F.R.C.S., received his Doctor of Medicine degree at New College, Oxford University in England and completed his internship at both University College Hospital and Greenwich Hospital in 1973. Dr. Lean finished his residency at the world renowned Moorfields Eye Hospital in London followed by a vitreoretinal surgical and medical fellowship at Moorfields. Dr. Lean was recruited to the University of Southern California Doheny Eye Institute in 1982, where he served as an Associate Professor until 1990. During his tenure at the Doheny Eye Institute, Dr. Lean authored numerous papers and book chapters and became a leading expert in the surgical management of complex retinal detachments. He has been honored with numerous visiting professorships and has spoken all over the world on various retinal conditions including diabetic retinopathy, complications of cataract surgery and age-related macular degeneration. Dr. Lean has been in private practice in Orange County since 1991. He is also a member of the prestigious Macula, Retina and Gonin societies. Dr. Lean sees patients at the Laguna Hills office.
He's terrific. Staff very nice.
He is keeping me from going blind. What more can I say.
Always attentive and helpful.
He's fabulous. Saved my eyesight years ago and keeps an eye (not a pun) on my retinas.
He’s right at the top of the list of best doctors I’ve ever seen.
I have total confidence in him and have for many years!
He is always attentive and informative. Exceptional doctor. Thank you.
Very good
I couldn’t ask for better than Dr. Lean.
Dr. Lean is the most caring surgeon I know.