Scanning laser polarimetry in glaucoma.

Abstract
Glaucoma is an acquired progressive optic neuropathy which is characterized by changes in the optic nerve head and retinal nerve fiber layer (RNFL). White‑on‑white perimetry is the gold standard for the diagnosis of glaucoma. However, it can detect defects in the visual field only after the loss of as many as 40% of the ganglion cells. Hence, the measurement of RNFL thickness has come up. Optical coherence tomography and scanning laser polarimetry (SLP) are the techniques that utilize the evaluation of RNFL for the evaluation of glaucoma. SLP provides RNFL thickness measurements based upon the birefringence of the retinal ganglion cell axons. We have reviewed the published literature on the use of SLP in glaucoma. This review elucidates the technological principles, recent developments and the role of SLP in the diagnosis and monitoring of glaucomatous optic neuropathy, in the light of scientific evidence so far.
Description
Keywords
Fixed corneal compensation, glaucoma, retinal nerve fiber layer, scanning laser polarimetry
Citation
Dada Tanuj, Sharma Reetika, Angmo Dewang, Sinha Gautam, Bhartiya Shibal, Mishra Sanjay K, Panda Anita, Sihota Ramanjit. Scanning laser polarimetry in glaucoma. Indian Journal of Ophthalmology. 2014 Nov ; 62 (11): 1045-1055.