Abstract
Assessing structural changes in the optic nerve is fundamental to the diagnosis and follow-up of glaucoma. Many clinical decisions are based on the determination of stability or non-stability of glaucomatous damage. Retinal nerve fibre layer (RNFL) and optic disc photographs are very useful in clinics but their assessment is based on subjective evaluation. Confocal scanning laser ophthalmoscope and confocal scanning laser polarimetry are available and allow objective and quantitative analysis of the optic nerve. These instruments are currently being assessed for their use in glaucoma follow-up. This article summarises their advantages and limitations in performing the difficult task of detecting progression or changes over time.
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