Mr Steven Harsum

Mr Steven Harsum

Consultant Ophthalmologist
MBBS, BSc, PhD, FRCOphth

Specialises in

  • Cataract surgery including complex cataract surgery
  • Diabetic retina
  • Macular degeneration
  • Macular oedema
  • Retinal surgery
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Practising at

Clinic times:
Friday (alternate): 2pm - 5.30pm

An initial consultation with Mr Steven Harsum is from £200.

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Treatment information

Some of the principal treatments carried out by Mr Steven Harsum at Spire include:

Other treatments

  • Cataract surgery
  • Complex cataract surgery
  • Diabetic retina
  • Floaters
  • Laser cataract surgery
  • Macular degeneration
  • Macular oedema
  • Medical retina
  • Micro-incision cataract surgery
  • Retinal detachment vitreous surgery
  • Retinal laser
  • Retinal surgery
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Professional profile

Mr Steven Harsum is a substantive consultant at Epsom and St Helier University NHS Trust who is a UK trained eye surgeon (ophthalmologist) working within Surrey.

During Mr Harsum's medical degree he was selected for the prestigious MBPhD course at University College London. This involved fast-track medical training, combined a second degree, and a three year research doctorate (PhD). His doctorate involved pioneering research into wound healing. During this time he developed his passion and skills for microsurgery.

After specialising in Ophthalmology he trained in multiple hospitals in north and south London, spending the final two years at the world renowned Moorfields Eye Hospital as a fellow in medical and surgical retina.

Since starting at Epsom and St Helier Mr Harsum has introduced the latest micro-incision cataract and vitreo-retinal surgery. He performs 25 gauge sutureless day-case vitrectomy surgery. This is used to treat a wide variety of conditions such as floaters, vitreous haemorrhage, diabetic retinal scarring, detached retinas, epiretinal membranes and macular holes. He also performs sub-2mm “micro-incision” cataract surgery and femtosecond laser cataract surgery. Compared to standard surgery, micro-incision surgery is less traumatic, faster, and safer for the patient. Surgery can be performed using only anaesthetic drops, rather than an injection to numb the eye. This surgery is combined with the latest multifocal lens implants to give outstanding vision for both near and distance without the need for glasses. After standard cataract surgery, available on the NHS, you will almost always need glasses. Mr Harsum is one of only a handful of surgeons in south east England using such small incision surgery. He is also the first surgeon in the UK to perform combined laser cataract surgery with vitrectomy surgery.

At Epsom and St Helier Mr Harsum was instrumental in starting up the new macular degeneration treatments, with systematic one-stop-shops and dedicated failsafe. He is also the clinical lead of the diabetic retinal screening service in Sutton & Merton, and regularly acts as an external quality assurance inspector, assessing the performance of other UK eye units. He was previously the audit lead at Epsom and St Helier, aiming to monitor and improve the quality of patient care and outcomes. He is currently the College Tutor, responsible for delivering training to ophthalmologists.

He is passionate about both teaching and modern technology, incorporating his videos of operations and special imagery into his tutorials.

Mr Harsum has recently undertaken a number of charity trips to Guyana and Burma where he has treated blinding cataracts, severe diabetic retinopathy, retinal detachments and glaucoma

General Medical Council Number: C4763770

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Get in touch


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Additional information

Qualification and professional memberships

Professional memberships

FRCOphth - Fellow of the Royal College of Ophthalmologists
BEAVRS - British and Eire Association of Vitreo-retinal Surgeons
BMA - British Medical Association
AAO - American Academy of Ophthalmologists
European Society of Cataract and Refractive Surgeons

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Current NHS posts

Epsom and St Helier University Hospitals NHS Trust
Old Cottage Hospital, Epsom

Personal profile

Steven is a family man with 3 young boys that take up most of his free time. He does however find time to play Squash and competes in the Kent Squash League. His other keen interest is photography, particularly night photography.

Contact information

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