Article Text

Download PDFPDF
Peripapillary fundus perimetry in eyes with glaucoma
  1. E Convento1,
  2. E Midena2,
  3. M T Dorigo1,
  4. V Maritan1,
  5. F Cavarzeran1,
  6. I A Fregona1
  1. 1Department of Ophthalmology, University of Padova, Padova, Italy
  2. 2Fondazione GB Bietti per l’Oftalmologia, IRCCS, Roma, Italy
  1. Correspondence to: E Convento Department of Ophthalmology, University of Padova, Via Giustiniani, 2, Padova 35128, Italy; enrica_convento{at}


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° 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) μm, 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.

  • AROC, area under the receiver operating characteristic curve
  • DLT, differential light threshold
  • IOP, intraocular pressure
  • OCT, optical coherence tomography
  • OHT, ocular hypertension
  • ONH, optic nerve head
  • RNFL, retinal nerve fibre layer
  • ROC curve, receiver operating characteristic curve

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.


  • Published Online First 29 June 2006

  • Competing interests: None.