Mr Marcus Posner
MBBS, BSc, FRCOphth
18 years of experience
London, NW8 9NH
(+2 more)
81 connections in healthcare
Skill endorsed
by Mr Zine Elhousseini, Mr Niten Vig and 5 other professionals
18 years of experience
London, NW8 9NH
(+2 more)
81 connections in healthcare
Skill endorsed
by Mr Zine Elhousseini, Mr Niten Vig and 5 other professionals
Areas of expertise
Contact
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About Mr Marcus Posner
Mr Marcus Posner is a consultant ophthalmologist and ophthalmic surgeon practicing at Queens Hospital, London Medical, Cromwell Hospital, St John and St Elizabeth Hospital, and Sydney Street Outpatient Centre.
His clinical practice covers a wide range of adult and paediatric eye conditions, with particular expertise in examining and managing patients with learning difficulties, including dyslexia and autism. In children, he treats squint, amblyopia (lazy eye), refractive errors, and various developmental and congenital eye conditions. His adult practice includes cataract surgery and lens replacement, adult squint surgery, and management of neuro-visual disorders such as optic neuritis, brain tumours, stroke, as well as common conditions like glaucoma, uveitis, and macular degeneration.
Mr Posner’s experience as a consultant in one of Europe’s busiest eye emergency units at Moorfields ensures that he stays up to date with the latest ophthalmic practices. He is also a surgical trainer and the regional undergraduate education lead for the Royal College of Ophthalmologists, actively contributing to the clinical and surgical education of regional trainees.
His research interests focus on myopia management in children, childhood eye tumours, and improving ocular healthcare in sub-Saharan Africa.
Subspecialties
- Emergency Ophthalmology
- Vision Correction Surgery
- Refractive Surgery / Surgical Solutions
- Neuro-Ophthalmology
- Paediatric Ophthalmology and Strabismus
- Cataract Surgery
Areas of expertise
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Registered with
General Medical Council
No. 7020650
Education
Imperial College London
Medicine
Graduated 2008
Qualifications
Imperial College School of Medicine (MBBS) - 2008
Bachelor of Science - Neuroscience (BSc) - 2006
Fellowship in Paediatric Ophthalmology, Neuro-Ophthalmology and Strabismus - Moorfields Eye Hospital
Languages spoken
- English
- Spanish
Insurers
- Bupa
- Aviva Health
- Vitality
- AXA Health
- WPA
- Bupa Fee Assured
- Healix Health Services
- Cigna
- Allianz Worldwide Care
- The Exeter
Fees
New appointment
£400Follow-up appointment
£280
Locations
St John & St Elizabeth Hospital
60 Grove End Road, London, United Kingdom, NW8 9NH
Opening hours
Facilities
Opening hours
Facilities
London Medical
49 Marylebone High Street, London, United Kingdom, W1U 5HJ
Opening hours
Facilities
Chelsea Surgical Partners
First Floor, 5 Fleet Place, London, United Kingdom, EC4M 7RD
Areas of expertise
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Reviews
I can't thank Mr Marcus Posner enough for the care he's given my husband and me over the last 18 months. He's kind, considered, and knowledgeable, and actually listens rather than reaching for his diary. Thanks to top cataract surgery with the very best lenses, I've been handed back 20 years of my life. Literally the best thing I ever did for myself. Marcus also kept his cool magnificently when a garden stake got in an eye and through a scary intensely painful acute inflammation. He steered us through it all with real skill, and patience. I always had excellent eyes and never gave them a second thought, but things change and I'm very glad we have Marcus in our corner. Highly recommended.
I was really impressed with Mr Posner‘s care. He carefully explained the options to me, the nature of the surgery, the risks involved and made sure that I fully understood the process. I found him very thorough and thought he provided really excellent care. The surgery was absolutely painless and I really cannot thank him enough for transforming my vision. I really couldn’t recommend him highly enough.
Fast efficient and effective
Dear patient, Thank you so much for taking the time to leave your feedback. Mr Posner and the team are very glad to hear about your experience. Providing swift, efficient, and highly effective care is always a top priority for Mr Posner, and he is delighted to know that your treatment went so smoothly. Thank you again for your kind words and trust in our practice. We wish you all the very best with your vision and continued recovery. Kind regards, On behalf of Mr Marcus Posner, Chelsea Surgical Partners
Everything undertaken was professional
Dear patient, Thank you so much for taking the time to share your feedback. Mr Posner and the team are very glad to hear about your experience. Maintaining the highest standards of professionalism throughout every stage of care is always Mr Posner's top priority, and he is so pleased to know that your visit went smoothly. Thank you again for your kind words and trust in our practice. We wish you all the very best with your continued recovery. Kind regards, On behalf of Mr Marcus Posner, Chelsea Surgical Partners
Dr Posner was very clear, helpful and empathetic throughout, and gave us very helpful advice to guide our way forward
Dear patient, Thank you so much for taking the time to leave your feedback. Mr Posner and the team are very glad to read your kind review. Providing empathetic care and ensuring that guidance and next steps are explained clearly is deeply important to Mr Posner. He is delighted to know that you felt well supported throughout your visit. Thank you again for your kind words and trust in our practice. We wish you all the very best moving forward. Kind regards, On behalf of Mr Marcus Posner, Chelsea Surgical Partners
Dr posner was amazing , very professional , very reassuring , i had fantastic results with my eye treatment that same day , within hours , i couldnt believe it . Iam so happy i visited Dr Posner
Dear patient, Thank you so much for taking the time to share your review and fantastic feedback. Mr Posner and the team are thrilled to read about your experience. Providing prompt, reassuring care and delivering great treatment outcomes is always Mr Posner's top priority, and he is so pleased to hear how quickly your eye felt better after your visit. Thank you again for your kind words and for trusting us with your care. We wish you all the very best. Kind regards, On behalf of Mr Marcus Posner, Chelsea Surgical Partners
Mr Posner was awesome!
Dear patient, Thank you so much for leaving a review and for your fantastic feedback. Mr Posner and the team are thrilled to hear about your experience. Providing prompt, reassuring, and high-quality care during urgent visits is always our top priority, and Mr Posner is so pleased he could help. Thank you again for your kind words. We wish you all the very best. Kind regards, On behalf of Mr Marcus Posner, Chelsea Surgical Partners
An excellent review of my visual health situation
Thank you for taking your time to leave your kind feedback!
“I'm very happy with the result of my squint surgery. The procedure was clearly explained, the care I received was excellent. My eyes are now much better aligned, and I feel far more confident. I’m truly grateful to the surgeon and the whole team for such a smooth experience.”
Thank you for your kind words! Thank you for trusting me with your care.
Great communication, patient and made me feel at ease. Explained scientific things in simple ways that were easy to understand - thank you Mr Posner!
Thank you for your kind words. Clear, understandable communication is a central part of how I practise, so I’m very pleased to hear that came across in your experience.
Skill Endorsements
Marcus is very knowledgeable in managing squint and pediatric conditions. He is very professional and caring
23 Jun 2026
Mr Zine Elhousseini
OphthalmologistExcellent clinician, surgeon, and colleague. We have shared patients and they all appreciate his friendly and open manner, and the support and skill he brings to their care.
23 Jun 2026
Mr Niten Vig
OphthalmologistGreat doctor,
23 Jun 2026
Mr Robbie Walker
OphthalmologistMr Posner is an excellent ophthalmologist, cataract surgeon and paediatric eye doctor. I would have no hesitation in recommending him to my patients, friends and family.
27 Jan 2026
Mr Harry Orlans
OphthalmologistFAQ
What are Mr Marcus Posner's reviews like?
Mr Marcus Posner's overall patient rating is 5 out of 5 stars on Doctify. This is based on 11 reviews.
What languages does Mr Marcus Posner speak?
Mr Marcus Posner speaks English and Spanish
Where is Mr Marcus Posner located?
Mr Marcus Posner primarily practices at St John & St Elizabeth Hospital, located at 60 Grove End Road, London, United Kingdom, NW8 9NH
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What are Mr Marcus Posner working hours?
Mr Marcus Posner is working Monday (17:30 - 20:00), Wednesday (09:00 - 12:00), Saturday (09:00 - 11:00)
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Does Mr Marcus Posner accept new patients?
Mr Marcus Posner generally accepts new patients.
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