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 the best, by any measurement!
(1 week ago)
Oct-2026
It was an absolute pleasure to have been treated by dr. Lean. We are very thankful for his knowledge, thoroughness, respect, kindness and care. We are very sad to see Dr. Lean go. Very grateful.
(2 weeks ago)
Sep-2026
He is an excellent doctor, my family and myself have been seeing him for decades. So pleased with his work.
(2 months ago)
Jul-2026
Best Retinal Specialist ever. Been going to him since 2000. He's working on my problem. And I'm hopeful. Can't say enough good things.
(2 months ago)
Jul-2026
I am very sorry to hear you are fully retiring, but my reasons are purely selfish, so I will just say you are probably the best Doctor I know. I could go on and on as I think I have been patient about 25 years. Let me just say all the best to you and your family and may the Good Lord bless and keep you.
(3 months ago)
Jun-2026
Very knowledgeable, explains condition well. He seems to really care about his patients!
(4 months ago)
May-2026
Great Doctor. Very thorough, efficient and kind
(6 months ago)
Mar-2026
Dr Lean always takes the time to explain what the course of treatment will be. He is gentle and thoughtful and thorough. I have full confidence in him.
(9 months ago)
Dec-2025
Super good doctor and saved my eyesight!
(10 months ago)
Dec-2025
He's terrific. Staff very nice.
(11 months ago)
Nov-2025
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 the best, by any measurement!
It was an absolute pleasure to have been treated by dr. Lean. We are very thankful for his knowledge, thoroughness, respect, kindness and care. We are very sad to see Dr. Lean go. Very grateful.
He is an excellent doctor, my family and myself have been seeing him for decades. So pleased with his work.
Best Retinal Specialist ever. Been going to him since 2000. He's working on my problem. And I'm hopeful. Can't say enough good things.
I am very sorry to hear you are fully retiring, but my reasons are purely selfish, so I will just say you are probably the best Doctor I know. I could go on and on as I think I have been patient about 25 years. Let me just say all the best to you and your family and may the Good Lord bless and keep you.
Very knowledgeable, explains condition well. He seems to really care about his patients!
Great Doctor. Very thorough, efficient and kind
Dr Lean always takes the time to explain what the course of treatment will be. He is gentle and thoughtful and thorough. I have full confidence in him.
Super good doctor and saved my eyesight!
He's terrific. Staff very nice.