The importance of central corneal thickness measurements and decision making in general ophthalmology clinics: a masked observational study
2008

Impact of Central Corneal Thickness on Glaucoma Management

Sample size: 152 publication Evidence: moderate

Author Information

Author(s): Patwardhan Ashish A, Khan Mohammad, Mollan Susan P, Haigh Paul

Primary Institution: Department of Ophthalmology, Shrewsbury and Telford Hospitals NHS Trust, Shrewsbury, UK

Hypothesis

Does knowing central corneal thickness (CCT) affect glaucoma management decisions in a general ophthalmology clinic?

Conclusion

CCT and adjusted IOP measurement can influence glaucoma management in a clinical context.

Supporting Evidence

  • CCT measurements can lead to different treatment options in 37% of cases.
  • 33.9% of eyes had IOP adjusted by more than ±2 mmHg based on CCT.
  • 20.4% of cases would have started additional IOP-lowering medication due to CCT information.
  • 2.0% of cases would have been counseled for trabeculectomy surgery based on CCT.
  • 3.3% of the cohort would have been observed rather than treated due to CCT.

Takeaway

Measuring how thick the clear front part of the eye is can help doctors make better decisions about treating eye pressure problems.

Methodology

A masked observational study involving 304 eyes of 152 glaucoma patients, measuring CCT and adjusting IOP to assess management decisions.

Potential Biases

Potential bias from the observer's memory effects and the artificial nature of the study setup.

Limitations

The study was theoretical and involved only one observer's decisions without actual patient involvement.

Participant Demographics

152 patients, 84 male and 68 female, mean age 71 years.

Statistical Information

P-Value

p < 0.05

Statistical Significance

p < 0.0001

Digital Object Identifier (DOI)

10.1186/1471-2415-8-1

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