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. 2006 Nov;90(11):1398-403.
doi: 10.1136/bjo.2006.092973. Epub 2006 Jun 29.

Peripapillary fundus perimetry in eyes with glaucoma

E Convento  1 , E Midena, M T Dorigo, V Maritan, F Cavarzeran, I A Fregona
Affiliations

Peripapillary fundus perimetry in eyes with glaucoma

E Convento et al. Br J Ophthalmol. 2006 Nov.

Abstract

Aims: To evaluate, with fundus perimetry, the peripapillary differential light threshold (DLT) in eyes with glaucoma and ocular hypertension (OHT), and compare it with peripapillary retinal nerve fibre layer (RNFL) thickness.

Methods: 35 glaucomatous, 29 OHT and 24 control eyes were included. Peripapillary DLT at 1 degrees from the optic nerve head was quantified with fundus perimetry; peripapillary RNFL thickness was measured over the same area by optical coherence tomography.

Results: Mean (SD) peripapillary DLT was 19.2 (1.7), 17.6 (4.2) and 10.1 (6.9) dB in control, OHT and glaucomatous eyes, respectively (p<0.001). Mean (SD) RNFL thickness was 98.4 (35.3), 83.9 (35.1) and 55.8 (28.2) microm, respectively (p<0.001). Mean peripapillary DLT showed higher sensitivity and specificity in differentiating the three groups compared with RNFL thickness.

Conclusion: Progressive, significant reduction of peripapillary DLT was documented in OHT and glaucomatous eyes compared with controls (p<0.001). DLT reduction parallels RNFL reduction.

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Conflict of interest statement

Competing interests: None.

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