FRCOphth
25 years of experience
Bristol, BS32 4UD
66 connections in healthcare
Skill endorsed
by Mr Ranjit Nair, Mr Stuart Guthrie and 22 other professionals
25 years of experience
Bristol, BS32 4UD
66 connections in healthcare
Skill endorsed
by Mr Ranjit Nair, Mr Stuart Guthrie and 22 other professionals
Areas of expertise
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I specialise in cataract and retinal surgery, serving as
the lead surgeon at Newmedica Bristol and lead for retinal surgery at the
Bristol Eye Hospital. My expertise includes complex cataract management,
bespoke cataract surgeries with advanced lens implants, and retinal surgeries
such as vitrectomy, macular hole, retinal detachment, and dislocated lens
implant repairs.
I’m a fellow of the Royal College of Ophthalmologist UK
and Spain and have completed prestigious VR surgery fellowships at the Bristol
and Sydney Eye Hospitals.
Today, I focus on patient-centre, evidence-based medicine
and regularly teach and train junior colleagues.
Click the bar to read reviews or skill endorsements
General Medical Council
No. 6058148
Universidad Central de Venezuela
Medicine
Graduated 2001
Fellow of the Royal College of Ophthalmologists
Royal College of Ophthalmologists 2014
Specialist in Ophthalmology
University Hospital (Clínic) of Barcelona 2014
New appointment
£195Follow-up appointment
£125Building 720, Waterside Drive, Aztec West, Almondsbury, Bristol, Bristol, United Kingdom, BS32 4UD
Areas of expertise
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This summary was created by AI based on recent reviews
Mr Johannes Keller is described as professional by patients. He provides clear explanations and clinical advice, ensuring patients feel at ease and well looked after. His cataract and lens replacement surgeries often result in excellent vision, sometimes life-changing. Patient reviews frequently highlight successful cataract and intraocular lens procedures.
Bilateral cataract surgery, swift precise and painless. Next morning I can see well. Excellent job
Mr Keller was very pleasant and knowledgeable and explained everything very well
The visit was a post op follow up after cataracts surgery. All had gone well and there were no queries or issues to report. I felt very assured throughout the whole process.
I found Mr Keller to be very professional, very likeable, easy to speak to and very reassuring. Everything was explained perfectly. I wouldn't hesitate to see Mr Keller again if I had another issue with my eyes
Mr Keller explained my options very clearly so that I could decide what was best for me. The result has exceeded my expectations.
Great service from the very first appointment explaining everything

Thank you for your kind words.
I highly recommend Mr Keller. He is professional, kind and obviously a highly respected expert in his field. I felt complete confidence he would resolve my somewhat complex eye problems and he did. The whole team were friendly and efficient and I could not have wished for a better experience or outcome. Thank you.

Thank you for the feedback. I'm delighted that you could have confidence in the treatment and had a good outcome.
Trusted colleague delivering excellent cataract care with expertise and compassion
10 Jul 2026
Mr Ranjit Nair
OphthalmologistMr Keller is an excellent surgeon and true professional for cataract and VR surgery
26 Jun 2026
Mr Stuart Guthrie
OphthalmologistMr Keller is an excellent and well respected VR surgeon
25 Jun 2026
Mr Malcolm Woodcock
OphthalmologistMr Keller is an excellent cataract and refractive surgeon, he is well known as a reputable clinician in the ophthalmic community
17 Jun 2026
Mr Salman Mirza
OphthalmologistWhat are Mr Johannes Keller's reviews like?
Mr Johannes Keller's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 69 reviews.
What languages does Mr Johannes Keller speak?
Mr Johannes Keller speaks English and Spanish
Where is Mr Johannes Keller located?
Mr Johannes Keller primarily practices at Newmedica Bristol - Aztec West, located at Building 720, Waterside Drive, Aztec West, Almondsbury, Bristol, Bristol, United Kingdom, BS32 4UD
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What are Mr Johannes Keller working hours?
Mr Johannes Keller is working Monday (08:30 - 16:00)
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Does Mr Johannes Keller accept new patients?
Mr Johannes Keller generally accepts new patients.
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