Cataract Surgery

Functional oculoplastic surgery focuses on the eyelids, eye sockets and facial structures around the eye area. It’s a highly specialised surgical procedure combining ophthalmology and plastic surgery. The surgeries are also delicate and involve operating on incredibly fine structures.


Cataract surgery is one of the most common surgical procedures in the world, particularly among the elderly. In the UK, it is estimated that 30% of individuals aged 65 and above will develop cataracts affecting their vision in one or both eyes.

Cataracts present as a clouding of the eye’s natural lens, leading to symptoms such as blurred vision, light sensitivity, and challenges in daily tasks.

While various factors like ageing, trauma, or certain diseases can contribute to cataract development, surgery remains the most effective means of restoring vision.

In a healthy eye, the lens is transparent, aiding in focusing light onto the retina. The retina then sends signals to the brain, translating them into the images we perceive.

What are the symptoms of cataracts?

Cloudy patches on the lens progressively intensify, causing symptoms like cloudy or blurry vision, faded colours, difficulty seeing at night, heightened sensitivity to light sources, seeing halos around lights, occasional double vision, frequent changes in glasses or contact lens prescriptions, and, ultimately, potential total vision loss.

What are the risk factors for cataracts?

While age is the primary risk factor, additional risk factors include:

  • Underlying health issues such as diabetes
  • Smoking
  • Excessive alcohol consumption
  • Family history of cataracts
  • Previous eye injuries or surgeries
  • Significant sun damage to the eyes
  • Use of steroids for conditions like arthritis

Do I need cataract surgery?

Cataracts typically enlarge over time, with worsening symptoms, and there is no current medication that can shrink them or preventing their effects. Regular check-ups can monitor cataracts, but surgery usually becomes necessary when they start to affect daily life.

What happens before my cataract procedure?

Before the procedure, Dr Nick Koutroumanos conducts a comprehensive preoperative assessment, evaluating overall health, cataract severity, and the most suitable surgical technique. This involves a detailed medical history, visual acuity tests, and a slit-lamp examination. Advanced diagnostic imaging may be utilised for precise procedural planning.

What can I expect from cataract surgery?

The most common approach to cataract surgery involves a refractive lens exchange operation, removing the cloudy lens and replacing it with a clear artificial lens. After removal, an artificial intraocular lens (IOL) is implanted. Choosing the right IOL is crucial, and Dr Koutroumanos guides patients in selecting from options like monofocal, multifocal, or toric lenses, addressing specific vision issues such as astigmatism or presbyopia.

The procedure, lasting 30 to 60 minutes, is minimally invasive, with smaller incisions and faster recovery times. Eye drops and mild sedatives are administered for a painless experience.

Oculoplastic surgeon London


Dr Nick Koutroumanos

Dr Nick Koutroumanos is a London-based Ophthalmic & Oculoplastic surgeon, with particular subspecialty expertise in ophthalmic plastic & reconstructive eyelid, orbital and lacrimal surgery.

His private practice, based at The Hospital of St John & St Elizabeth in St John’s Wood complements his work in charge of a large NHS oculoplastics practice at the Royal Free Hospital in Hampstead.

A qualified senior trainer and Royal College Examiner in ophthalmic plastic surgery, cataract surgery and general ophthalmology, he runs an Oculoplastics Fellowship training programme that is highly sought-after by both UK and international candidates.

Kind Words from Our Patients


A true perfectionist

Words are not enough to express my sincere gratitude for the care and dedication Dr Koutroumanos put into my journey. I felt safe and secure in his hands. This is someone who truly cares about outcome and ethics of practice. A true perfectionist. I would not hesitate to wholeheartedly recommend him.

100% worth it

I had surgery a few days ago with Dr Koutroumanos for congenital ptosis. It’s early days but I don’t think it’s too early to say the results will be life changing for me in terms of confidence levels. I struggled at school due to the condition and have learnt to live with it – that is until I saw the doctor who was reassuring from the start and has just done the best job. 100% worth it and amazing to know I was in such safe hands. I can’t thank him enough.

I’m really happy with my results

I’ve recently had a brow lift and blepharoplasty with Mr N Koutroumanos. The whole process from start to finish was handled professionally and each process was very informative. I’m still at the recovery stage, so far I’m really happy with my results. Highly recommend using Mr N Koutroumanos services.