Background/aims To identify the percentage of those aged 65 and over who might be referred by community optometrists as ocular hypertensive suspects in the post-NICE era when differing guidance is followed by community optometrists.
Method The authors constructed an epidemiologically based model utilising Bridlington Eye Assessment Project (BEAP) data. Ocular hypertensive suspects' data were subjected to two algorithms (Association of Optometrists (AOP) and Joint College) to determine referral of suspects if community optometrists followed either algorithm.
Results 85 of 1643 people (5.2%) tested by BEAP, with normal acuity and visual fields, recorded Goldmann IOPs of >21 mm Hg in either or both eyes. Without pachymetric information, all 85 would be referred under the AOP algorithm, decreasing to 31 (1.9%) under the joint College algorithm (63% reduction). If central corneal thickness readings influenced referral, 39 (2.4%) would be referred under the AOP algorithm and 13 (0.8%) under the joint College algorithm.
Conclusion If community optometrists use Goldmann tonometry and pachymetry, following the joint College guidelines, referrals of OHT suspects could be reduced to a fifth of those under the original AOP guidance. Community optometrists should be encouraged to use GAT and pachymetry in order to refine referrals when another examination is normal. Potential savings to the NHS are considerable.
- Ocular hypertension
- intraocular pressure
- diagnostic tests/investigation
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Funding The Bridlington Eye Assessment Project was funded by an unrestricted grant from Pfizer. We would also like to thank the following organisations for financial support of the Project: Pharmacia, Yorkshire Wolds & Coast Primary Care Trust, The Lords Feoffees of Bridlington, Bridlington Hospital League of Friends, The Hull & East Riding Charitable Trust, The National Eye Research Centre (Yorkshire), The Rotary Club of Bridlington, The Alexander Pigott Wernher Memorial Trust, Bridlington Lions Club, The Inner Wheel Club of Bridlington, Soroptimist International of Bridlington, and The Patricia and Donald Shepherd Charitable Trust.
Competing interests None.
Ethics approval Ethics approval was provided by the York Ethics Committee.
Provenance and peer review Not commissioned; externally peer reviewed.