Invest Ophthalmol Vis Sci
Invest Ophthalmol Vis SciJune 2016Research Support, Non-U.S. Gov't

Adjusting Circumpapillary Retinal Nerve Fiber Layer Profile Using Retinal Artery Position Improves the Structure-Function Relationship in Glaucoma.

Optic Nerve & DiscOCT & Imaging

Summary

Correcting cpRNFL profile, using the retinal artery position significantly strengthened the structure-function relationship. In most optic disc sectors, using the papillomacular bundle tilt improved cpRNFL thickness measurements.

Abstract

PURPOSE

To investigate whether correcting the circumpapillary retinal nerve fiber layer (cpRNFL) thickness profile, using retinal artery position and papillomacular bundle tilt, can improve the structure-function relationship in glaucoma patients.

METHODS

Spectral-domain optical coherence tomography (SD-OCT) and visual field measurements were conducted in 142 eyes of 90 subjects with open angle glaucoma. The SD-OCT cpRNFL thickness profile was corrected for retinal artery position and/or papillomacular tilt in all twelve 30° sectors of the optic disc, and the structure-function relationship against corresponding 30° sectorial retinal sensitivity was investigated by using linear mixed model.

RESULTS

Applying a correction to the cpRNFL thickness profile for retinal artery position resulted in a stronger structure-function relationship in all 12 sectors of the optic disc. Furthermore, applying a further adjustment for papillomacular tilt resulted in a further improvement in 9 of 12 sectors.

CONCLUSIONS

Correcting cpRNFL profile, using the retinal artery position significantly strengthened the structure-function relationship. In most optic disc sectors, using the papillomacular bundle tilt improved cpRNFL thickness measurements.

Discussion

Comments and discussion will appear here in a future update.