At Moorfields, we closely monitor the quality, safety and outcomes of our treatments. Our results are benchmarked against national standards to ensure we consistently deliver excellent care.
Our data includes patients with a wide range of conditions, from straightforward to highly complex cases.
As a specialist eye hospital, we treat a higher proportion of complex cases, which can affect overall outcomes. Your consultant will always explain the likely benefits, risks and expected results of treatment based on your individual circumstances.
The data on this page shows the overall quality and safety of care at Moorfields. It should not be used to predict the outcome for any individual patient.
Moorfields Private is part of Moorfields Eye Hospital NHS Foundation Trust. Our consultants work across both NHS and private services, and outcome data may include NHS patients, private patients, or a combination of both. Each section explains the source of its data.
Medical retina conditions, including age-related macular degeneration and diabetic retinopathy
Vitreoretinal conditions, including retinal detachment and epiretinal membrane
Moorfields Private collates outcome data for refractive procedures relating to both quality and safety, and benchmarks these against national standards.
As world-leaders in eye care, our refractive team are specialists in ophthalmology and consistently achieve great results for patients with very few complications. Our refractive team perform over 2,000 procedures every year with dedicated technician and nursing teams who are also specialists in refractive procedures.
Good vision
95.7%
Compared to the national standard of 80%
Good vision is defined as a patient seeing 20/20 or better. 20/30 means that the patient has to stand 20 feet to see the letters on a chart that a ‘normal’ sighted patient could see at 30 feet. 20/20 in feet is the same as 6/6 in meters. The UK minimum standard for driving is 20/40 (6/12). Sometimes patients can see better than 20/20. For example, 20/16 (6/5) means that a patient can see the letters standing at 20 feet that a ‘normal’ patient would have to stand closer at 16 feet to read.
The gold standard for good vision is 80% or more of patients after laser eye surgery should reach 20/20 vision or better. Moorfields Private consistently performs significantly above this standard. In 2025/26, Moorfields Private achieved 95.7%.
Remember some patients don’t have 20/20 vision with their glasses or contact lenses, before laser treatment. These patients are not expected to reach 20/20 after laser eye surgery.
Accuracy
96.3%
Compared to the national standard of 85%
Accuracy is defined achieving a prescription result within 0.50 dioptres of the target. For example, if your prescription is -3.00 before the laser, the target would normally 0.00. A result from -0.50 to +0.50 would be considered accurate since vision with such a small prescription is usually excellent.
The gold standard for accuracy within laser eye surgery, as determined by the original FDA laser trials, in people with short-sightedness is greater than 85%. Moorfields Private consistently performs significantly above this standard. In 2025/26, Moorfields Private achieved 96.3%.
Some of these patients will have required a top-up laser procedure if the vision initially wasn’t quite good enough. Our 5-year commitment to you would cover many of these retreatments.
Loss of vision
0.13%
Compared to the national standard of less than 1%
Loss of vision after laser eye surgery is defined as vision that is two or more lines worse on a vision test chart. For example, if your vision is 20/20 before the laser surgery with glasses but only 20/40 after the laser (with or without glasses), then this would meet the definition.
The gold standard for loss of vision following LASIK laser eye surgery is less than 1%. Moorfields Private consistently achieves exceptionally low rates of loss of vision for this procedure. In 2025/26, Moorfields Private recorded a rate of 0.13% and in 2024/25 this was 0%.
Despite treating a high number of complex cases, Moorfields Private consistently performs above national standards for refractive and vision correction outcomes.
Cataracts are a clouding of the lens within the eye. It is treated with an operation to remove the cloudy lens and replace it with an artificial one.
Moorfields Private is the largest single site for private cataract surgery in the UK. Our expert consultants treat some of the most complex cataract cases. Cataract surgery is a common procedure and has a high success rate in both treating the cataract and achieving good vision post-surgery as well as low complication rates.
All Moorfields Private consultants also practice at Moorfields Eye Hospital NHS Foundation Trust. Moorfields Private don’t collate biometry and PCR data specifically for cataract surgery, however Moorfields Eye Hospital NHS Foundation Trust does and our success rates are above the national standards.
Biometry accuracy
94%
Compared to the national standard of 85%
Biometry accuracy is a measure of how close the patient's vision prescription is to the predicted vision before the surgery.
The national standard for biometry accuracy is defined as within 1 dioptre of pre-surgery target.
The national standard states that this should be achieved in more than 85% of cases. Moorfields achieved 94% in 2025/26.
Posterior Capsular Rupture
0.68%
Compared to a national standard of less than 1.95%
Posterior capsular rupture (PCR) is a complication of cataract surgery where a tear occurs in the thin membrane that holds the natural lens in place.
The national standard for posterior capsule rupture in cataract patients is less than 1.95%. Moorfields achieved 0.68% in 2025/26.
Endophthalmitis
0.005%
Compared to a national standard of less than 0.08%
Our endophthalmitis reporting includes results from both Moorfields Eye Hospital NHS Foundation Trust and Moorfields Private.
Endophthalmitis is an infection inside the eye that is a rare but serious complication of cataract surgery. The national standard for endophthalmitis after cataract surgery is less than 0.08%. Moorfields achieved 0.005% in 2025/26.
This means that only 1 in 20,000 patients experienced this complication at Moorfields compared to the national standard of 1 in 1,250.
Despite treating a high number of complex cases, Moorfields Private consistently performs above national standards for cataract surgery outcomes.
Our corneal graft reporting includes results from both Moorfields Eye Hospital NHS Foundation Trust and Moorfields Private. Outcomes focus on whether the corneal graft "survives". Survival is defined as the donor corneal tissue remaining clear, healthy and viable.
Results are tracked over two years, so the most recent data is from operations conducted in 2022/23.
There are many factors which contribute to the success of corneal grafts and the number of operations is relatively small. NHS Blood and Transplant who oversee the data collection and processing, determine whether variation between the national standard and Moorfields' results are statistically signficant.
Penetrating Keratoplasty (PK) for keratoconus
96.9%
Compared to a national average of 93.7%
PK for kerakatonus is a full-thickness corneal transplant where the central cornea is removed and replaced with healthy donor graft material. It is generally conducted in advanced cases.
For surgeries conducted in 2022/23, the national average was 93.7% two year survival rate. Moorfields achieved 96.9%.
The NHS Blood and Transplant service determined that there was no statistically significant difference.
Deep Anterior Lamellar Keratoplasty (DALK) for keratoconus
93.5%
Compared to a national average of 94.1%
DALK (Deep Anterior Lamellar Keratoplasty) is a type of corneal transplant used to treat keratoconus.
It replaces the front layers of the cornea that have become thin and misshapen, while keeping the healthy inner layer of your own cornea in place. By preserving this inner layer, DALK can reduce the risk of rejection and help protect the long‑term health of the eye.
For surgeries conducted in 2022/23, the national average was 94.1% two year survival rate. Moorfields achieved 93.5%.
The NHS Blood and Transplant service determined that there was no statistically significant difference.
DMEK for PBK
69.6%
Compared to a national average of 74.6%
DMEK (Descemet Membrane Endothelial Keratoplasty) is a modern type of corneal transplant used to treat pseudophakic bullous keratopathy (PBK). PBK is a condition which can occur following cataract surgery casuing swelling (edema) in the cornea and leading to the formation of small fluid-filled blisters (bullae) on its surface.
The DMEK replaces only the thin inner layer of the cornea that has been damaged, rather than the whole cornea.
Because the surgery is less invasive, DMEK usually leads to faster visual recovery, clearer vision, and a lower risk of rejection compared with traditional full‑thickness corneal transplants.
For surgeries conducted in 2022/23, the national average was 74.6% two year survival rate. Moorfields achieved 69.6%.
The NHS Blood and Transplant service determined that there was no statistically significant difference.
DMEK for Fuchs Endothelial Dystrophy
92%
Compared to a national average of 88.1%
DMEK (Descemet Membrane Endothelial Keratoplasty) is a modern type of corneal transplant used to treat Fuchs’ Endothelial Dystrophy.
It replaces only the thin inner layer of the cornea that is no longer working properly, leaving the rest of your eye untouched.
For surgeries conducted in 2022/23, the national average was 88.1% two year survival rate. Moorfields achieved 92%.
The NHS Blood and Transplant service determined that there was no statistically significant difference.
Despite treating a high number of complex cases, Moorfields Private consistently performs in line with the national average for corneal graft outcomes.
Glaucoma is a condition where the optic nerve is damaged, usually due to increased pressure within the eye. There are numerous treatments for glaucoma including laser treatment and surgery.
All Moorfields Private consultants also practice at Moorfields Eye Hospital NHS Foundation Trust. Moorfields Private don’t collate outcome data for glaucoma, however Moorfields NHS Foundation Trust does and our success rates are above the national standard.
Tube surgery success
95%
Compared to a national standard of 80%
Tube surgery is referred to my many different names including aqueous shunts, tube implants, and glaucoma drainage devices.
These all refer to the same procedure, where a small, flexible tube is inserted into the eye. This allows excess fluid to drain out of the eye and reduces the intra-ocular pressure in the eye.
The national standard for success in tube glaucoma drainage surgery is greater than 80%. Moorfields achieved 95% in 2025/26.
Trabeculectomy glaucoma drainage surgery
95%
Compared to a national standard of 85%
A trabeculectomy is an operation that helps lower the pressure inside your eye. It works by creating a new pathway for fluid to drain out of the eye. The fluid collects under the surface layer of the eye, forming a small blister called a “bleb.”
By improving how fluid drains, the operation reduces the pressure inside the eye (known as intraocular pressure, or IOP).
This surgery is now less common and is used more frequently for complex or advanced cases. Improvements in surgical techniques mean more patients are suitable for tube surgery.
The national standard for successful trabeculectomy glaucoma drainage surgery is greater than 85%. Moorfields achieved 95% in 2025/26.
Posterior capsular rupture
1%
Compared to a national standard of less than 1.95%
Posterior capsular rupture (PCR) is a complication of glaucoma surgery where a tear occurs in the thin membrane that holds the natural lens in place.
The national standard for this in glaucoma patients is less than 1.95%. Moorfields’ rate was 1% in 2025/26.
Despite treating a high number of complex cases, Moorfields Private consistently performs above national standards for glaucoma outcomes.
Medical retina conditions include age-related macular degeneration, diabetic retinopathy and retinal vein occlusions. Some medical retina conditions do not have cures and treatment is aimed at stabilising vision or decreasing the rate of degeneration. The most common treatment for medical retina conditions is injections.
Outcomes for medical retina conditions are dependent on personal circumstances. However, our expert consultants have low complication rates and high success rates.
Moorfields Private is the private division of Moorfields Eye Hospital NHS Foundation Trust. All Moorfields Private consultants also practice at Moorfields NHS. Moorfields Private don’t collate outcome data for medical retina, however Moorfields Eye Hospital NHS Foundation Trust does and our success rates are above the national standard.
Visual stability
93%
Compared to the national standard of 80%
Visual stability is defined as no significant deterioration in vision, as measured by how well the patient can read letters on standard eye charts.
The national standard for visual stability after injections for wet macular degeneration is greater than 80%. Moorfields achieved 93% in 2025/26.
Visual improvement
21.6%
Compared to a national standard of 20%
Visual improvement is defined as a statistically significant improvement in vision, as measured by how well the patient can read letters on standard eye charts. Eye prescriptions can naturally vary, and so a statistically signficant improvement is approximately 3 lines on a vision chart.
The national standard for visual improvement after injections for wet macular degeneration is greater than 20%. Moorfields achieved 21.6% in 2025/26.
Posterior capsular rupture
1.5%
Compared to a national standard of 4%
Posterior capsular rupture (PCR) is a complication of cataract surgery in patients with medical retina conditions, where a tear occurs in the thin membrane that holds the natural lens in place.
The national standard for this in medical retina patients is less than 4%. Moorfields’ rate was 1.5% in 2025/26.
Endophthalmitis
0.005%
Compared to a national standard of 0.03%
Endophthalmitis is an infection inside the eye that is a rare but serious complication of injections.
The national standard for endophthalmitis is less than 0.03%. Moorfields achieved 0.005% in 2025/26.
This means that only 1 in 20,000 patients experienced this complication at Moorfields compared to the national standard of 1 in 3,333.
Despite treating a high number of complex cases, Moorfields Private consistently performs above national standards for medical retina conditions.
Our oculoplastic team manage conditions that affect the eyelids and tear ducts as well as offering private cosmetic procedures.
All our oculoplastic procedures are performed by consultant ophthalmic surgeons who consider the overall health of the eye as well as the external structures.
Moorfields Private is the private division of Moorfields Eye Hospital NHS Foundation Trust. All Moorfields Private consultants also practice at Moorfields NHS. Moorfields Private don’t collate outcome data for oculoplastics, however Moorfields Eye Hospital NHS Foundation Trust does and our success rates are above the national standard.
Ptosis surgery
98.5%
Compared to a national standard of 85%
A ptosis is a drooping of the upper eyelid which can obscure the vision. Ptosis is usually corrected using a surgical procedure called a blepharoplasty, which lifts and positions the eyelid in its correct location.
The national standard for ptosis surgery success is greater than 85%. Moorfields achieved 98.5% in 2025/26.
Entropion surgery
96.2%
Compared to a national standard of 95%
An entropion is where the eyelid - usually the lower eyelid - turns inward. The only cure is through surgery to reposition the eyelid into its correct location.
The national standard for entropion surgery success is greater than 95%. Moorfields achieved 96.2% in 2025/26.
Ectropion
98.4%
Compared to a national standard of 80%
An ectropion is where the eyelid - usually the lower eyelid - turns outward or droops away from the eye. This exposes the inner lining of the eyelid.
The treatment is surgery to reposition the eyelid to its correct location.
The national standard for ectropion surgery success is greater than 80%. Moorfields achieved 98.4% in 2025/26.
Despite treating a high number of complex cases, Moorfields Private consistently performs above national standards for oculoplastic surgeries.
Strabismus is more commonly known as squint. Strabismus has both surgical and non-surgical treatments and our expert consultants treat complex cases in both children and adults.
Moorfields Private is the private division of Moorfields Eye Hospital NHS Foundation Trust. All Moorfields Private consultants also practice at Moorfields NHS Foundation Trust. Moorfields Private don’t collate outcome data for strabismus, however Moorfields NHS Foundation Trust does and our complication rates are below the national standard.
Strabismus complications
0.39%
Compared to a national standard of 0.43%
Strabismus (eye muscle) surgery is a very safe procedure. Most side effects are mild and temporary, such as redness of the eye, slight over or under correction of eye position, or short term double vision while the eyes adjust.
Serious complications are rare and include infection, inadvertent trauma to the eye, muscles slipping/moving during or after surgery, or loss of vision.
The national standard for significant complications of strabismus surgery is less than 0.43%. Moorfields achieved 0.39% in 2025/26.
Despite treating a high number of complex cases, Moorfields Private consistently performs above national standards for strabismus surgery.
Vitreoretinal conditions include retinal tears, retinal detachments and epiretinal membranes.
Outcomes for vitreoretinal conditions are dependent on personal circumstances. As the only 24/7 dedicated eye accident and emergency department in London and the South East, Moorfield sees the most complex sight-threatening emergencies including retinal detachments.
Moorfields Private is the private division of Moorfields Eye Hospital NHS Foundation Trust. All Moorfields Private consultants also practice at Moorfields NHS Foundation Trust. Moorfields Private don’t collate outcome data for vitreoretinal, however Moorfields NHS Foundation Trust does and our expert vitreoretinal consultants have high success rates.
Macular hole surgery
93%
Compared to a national standard of 80%
A macular hole is a small hole or tear in the centre of the macula, which is the central region of the retina at the back of the eye.
The only way to treat a macular hole is with an operation called a vitrectomy.
The national standard for successful macular hole surgery is greater than 80%. Moorfields achieved 93% in 2025/26.
Primary retinal detachment surgery
84%
Compared to a national standard of 85%
A retinal detachment occurs when the delicate layer of nerves at the back of your eye (the retina) begins to pull away from the blood vessels that supply it with oxygen.
A detached retina usually requires emergency surgery, as it can potentially lead to a permanent loss of vision if left untreated for a period of time.
The national standard for successful primary retinal detachment surgery is greater than 85%. Moorfields achieved 84% in 2025/26.
Posterior capsular rupture
2.8%
No national standard available
Posterior capsular rupture (PCR) is a complication of victrectomy surgery where a tear occurs in the thin membrane that holds the natural lens in place.
There is no national published standard for PCR in victrectomised eyes. Moorfields achieved 2.8% in 2025/26.
Despite treating a high number of complex cases, Moorfields Private consistently performs at or above national standards for vitreoretinal surgeries.
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