Table 10-148Non specialist optometrist compared to general ophthalmologist - Clinical study characteristics

OutcomeNumber of studiesDesignLimitationsInconsistencyDirectnessOther considerations
Inter- observer agreement for vertical cup-to-disc ratio55,572Retrospective observationalSerious limitations (a)Serious inconsistency (b)No serious indirectness
Inter- observer agreement for optic disc haemorrhag e55,572Retrospective observationalSerious limitations (a)Serious inconsistency (b)No serious indirectness
a

Both studies were observer masked but both studies tested agreement in the ability to read 48 pairs of stereo photographs rather than clinical examination of patients. One study56 did not report confidence intervals for the kappa statistic.

b

There is variation between studies noted in number of participating optometrists and ophthalmologists and their experience and training.

From: 10, Service Provision

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