Clinical Study

Benchmarking cataract surgery outcomes in an ethnically diverse and diabetic population: final post-operative visual acuity and rates of post-operative cystoid macular oedema

Received:
Accepted:
Published online:

Abstract

Purpose

To determine visual acuity and rates of post-operative cystoid macular oedema (CMO) in an ethnically diverse and predominantly diabetic population.

Methods

The study was undertaken over a one year period. Snellen visual acuity (VA) was measured pre and 4–8 weeks post-operatively and optical coherence topography (OCT) was performed at baseline and post-operatively. No eyes received prophylactic non-steroidal anti-inflammatory drugs (NSAIDs) prior to or after surgery.

Results

Out of 262 eyes, 59% were in the Black, Asian and minority ethnic group (BAME), 57% had a history of diabetes mellitus and 34% had pre-existing diabetic retinopathy. 76% of all eyes achieved 6/12 post-operative VA at the first postoperative review and the incidence of post-operative CMO within the study population was 7.6%. In patients with a history of diabetes mellitus the incidence of post-operative CMO was 10.7% compared to 3.5% in those without diabetes. This was found to be clinically significant (P=0.0297).

Conclusion

We believe this is the first study to benchmark standards for care in this demographic of patients. A history of diabetes mellitus, irrespective of whether there is diabetic retinopathy or not, is an independent risk factor for the development of post-operative CMO in patients undergoing cataract surgery (P=0.0297). Ethnicity is not an independent risk factor for the development of post-operative CMO.

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Author information

Affiliations

  1. Ophthalmology Department, Whipps Cross University hospital, Leytonstone, London, UK

    • K Oyewole
  2. Ophthalmology Department, Whipps Cross University Hospital, London, UK

    • F Tsogkas
  3. Medical Retina Department, Moorfields Eye Hospital, London, UK

    • M Westcott
  4. Ophthalmology Department, Whipps Cross University Hospital, London, UK

    • S Patra

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Competing interests

The authors declare no conflict of interest.

Corresponding author

Correspondence to K Oyewole.