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Deze abstract is toegekend aan sessie OB Free papers 4 - Glaucoma
TitelThe range of Waveform score of ocular response analyzer (ORA) in healthy subjects: Interim analysis
DoelTo assess the range of waveform score in IOP measurements with ocular response analyzer (ORA, Reichert) in healthy subjects.
MethodesProspective study including both eyes of healthy subjects with no ocular pathology or previous refractive surgery
The IOP measurements with ORA were performed. The inclusion criteria of the measurements were based on good waveforms. The waveform score (W.S.) of 3 measurements were included for statistical analysis. Other parameters including age, central corneal thickness (CCT) and axis length were also analysed to evaluate possible correlations. Spearman correlation coefficient was used to assess the correlation.The Anova test was used to assess the variance in repeated measurements.
ResultatenTo date, right eyes of 53 healthy subjects are included (Mean age: 46.6 ± 14.3 yrs, Axial length: 23.7 ± 1.1, CCT: 554 ± 34 µm).
The mean W.S. from the first IOP measurement were 5.1±2.3 and for the 2de and 3th respectively 5.2±1.9 and 5.±2.1 (p= 0.74, not significantly different).
The mean W.S. of 159 signals (one eye and 3 measurements) was 4.2±2.1 and ranged from 1.2 to 9.6. Considering the best signal value per patient, the mean of all best signal values was 5.5±2.0 and it ranged from 1.9 to 9.5. The lowest 10% of all the best signal value was 3.35.
ConclusieThe waveform score is a new parameter indicating the reliability of each measurement signal. The best signal value indicates the best measurements of each session (Not the mean of the measurements). To date, results show that the lower 10% percentile is 3.35. This could suggest that the measurements with waveform score lower than 3 should be discarded.
Auteur 1
NaamVANTOMME
InitialenM
InstituutCliniques Univ. St-Luc, UCL
StadWoluwe-St-Lambert
Auteur 2
NaamPOURJAVAN
InitialenS
InstituutCliniques Univ. St-Luc, UCL
StadWoluwé-St-Lambert
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