RNFLWert

RNFLWert is a German term that translates to "Retinal Nerve Fiber Layer Value". It refers to the measurement of the thickness of the retinal nerve fiber layer (RNFL) in the eye. This layer is composed of the axons of the retinal ganglion cells, which transmit visual information from the retina to the brain.

Measuring the RNFLWert is a common diagnostic tool in ophthalmology, particularly for the detection and monitoring of glaucoma. Glaucoma is a disease characterized by progressive damage to the optic nerve, which can lead to irreversible vision loss. Damage to the optic nerve in glaucoma often begins with thinning of the RNFL.

The RNFLWert is typically measured using specialized imaging devices such as optical coherence tomography (OCT) or a confocal scanning laser ophthalmoscope. These instruments provide cross-sectional images of the retina, allowing for precise quantification of RNFL thickness in different quadrants around the optic disc.

A lower than average RNFLWert, especially if it shows a progressive decrease over time, can be an early indicator of glaucomatous damage or other optic nerve abnormalities. Ophthalmologists use these measurements in conjunction with other clinical findings, such as intraocular pressure and visual field tests, to diagnose and manage eye conditions. Changes in RNFLWert can help track the progression of a disease and assess the effectiveness of treatment.