John S. Lean, M.D.

Practice: Retina Associates of Orange County

Specialty: Ophthalmology

Office locations: Laguna Hills, CA

Most recent review: 4 days ago New
4.9 out of 5
163 Ratings
75 Comments

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.

4.9 out of 5
163 Ratings
75 Comments

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.

Ultimate professional.

Rated 5 out of 5 stars
(4 days ago) Oct-2026

Non better. Really going to miss him , but he truly deserves a wonderful retirement. He’s really help me with my retina issues. I owe my sight to him!!

Rated 5 out of 5 stars
(4 days ago) Oct-2026

I have been under Dr Lean’s care for decades. So very sorry to learn of his much deserved retirement. I am a Type 1 Diabetic with severe Retinopathy. I owe the fact that I still have my eyesight to him. He will be missed terribly.

Rated 5 out of 5 stars
(2 weeks ago) Oct-2026

He’s the best, by any measurement!

Rated 5 out of 5 stars
(1 month 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.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

He is an excellent doctor, my family and myself have been seeing him for decades. So pleased with his work.

Rated 5 out of 5 stars
(3 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.

Rated 5 out of 5 stars
(3 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.

Rated 5 out of 5 stars
(4 months ago) Jun-2026

Very knowledgeable, explains condition well. He seems to really care about his patients!

Rated 5 out of 5 stars
(5 months ago) May-2026

Great Doctor. Very thorough, efficient and kind

Rated 5 out of 5 stars
(7 months ago) Mar-2026