AIM: To characterise measurement variability in scanning laser tomography of the optic nerve head. METHODS: 21 normal and 21 glaucoma subjects underwent same and separate day test-retest Heidelberg retina tomograph imaging by the same and different operators. RESULTS: Rim area was most reproducible among parameters. Its variability tended to be highest temporally and increased (p<0.05) with testing involving different operators and visits. Nature of regional variability differed between glaucoma and normal eyes and between standard and 320 micro m reference planes. CONCLUSIONS: Rim area is reproducible and potentially useful as a marker of progression. Pattern of variability and the influence of different reference planes, disease, operators, and visits should be considered when evaluating progression.
AIM: To characterise measurement variability in scanning laser tomography of the optic nerve head. METHODS: 21 normal and 21 glaucoma subjects underwent same and separate day test-retest Heidelberg retina tomograph imaging by the same and different operators. RESULTS:Rim area was most reproducible among parameters. Its variability tended to be highest temporally and increased (p<0.05) with testing involving different operators and visits. Nature of regional variability differed between glaucoma and normal eyes and between standard and 320 micro m reference planes. CONCLUSIONS:Rim area is reproducible and potentially useful as a marker of progression. Pattern of variability and the influence of different reference planes, disease, operators, and visits should be considered when evaluating progression.
Authors: R O Burk; K Vihanninjoki; T Bartke; A Tuulonen; P J Airaksinen; H E Völcker; J M König Journal: Graefes Arch Clin Exp Ophthalmol Date: 2000-05 Impact factor: 3.117
Authors: C P Jonescu-Cuypers; G Thumann; R D Hilgers; K U Bartz-Schmidt; R Krott; G K Krieglstein Journal: Graefes Arch Clin Exp Ophthalmol Date: 1999-03 Impact factor: 3.117
Authors: Neil O'Leary; David P Crabb; Steven L Mansberger; Brad Fortune; Michael D Twa; Michael J Lloyd; Aachal Kotecha; David F Garway-Heath; George A Cioffi; Chris A Johnson Journal: Arch Ophthalmol Date: 2010-05
Authors: Alexander A Shpak; Maria K Sevostyanova; Svetlana N Ogorodnikova; Irina N Shormaz Journal: Graefes Arch Clin Exp Ophthalmol Date: 2011-09-01 Impact factor: 3.117
Authors: Nicholas G Strouthidis; Hongli Yang; Brad Fortune; J Crawford Downs; Claude F Burgoyne Journal: Invest Ophthalmol Vis Sci Date: 2008-08-08 Impact factor: 4.799