C53707: Measuring central corneal thickness in optometric practice

When assessing glaucoma risk, measuring intraocular pressure (IOP) and examining visual fields and optic disc appearance have all been standard practice for many years. These results do not tell us the whole story though. Assessment of anterior chamber angles has added to our understanding of the eye’s architecture (see Optician 20.05.16) and its associated glaucoma risk, and optical coherence tomography (OCT) assessment of nerve fibre layer thickness has furthered our knowledge of the retinal changes in pre-perimetric glaucoma. While we have added some layers of complexity to these assessments we can sometimes ignore the accuracy of our most basic measurement in the glaucoma detection toolbox- tonometry.