Agreement Of White-To-White And Anterior Chamber Depth Measurements Using Two Optical Biometers In Myopic Eyes
Published 2023
- 41st Congress of the ESCRS
Reference: PO1000
| Type: Free paper
| DOI:
10.82333/9hnq-kf41
Authors:
Salvador Aguilar Corcoles* 1
, Cristina Tello-Elordi 1
, María Ramos 1
, Pedro Tañá-Sanz 1
, Santiago Tañá-Sanz 1
, Pedro Tañá-Rivero 1
1Oftalvist,Alicante,Spain
Purpose
To analyze the agreement in white-to-white (WTW) and anterior chamber depth (ACD) distances measurements between the IOLMaster 500 and 700 optical biometers in myopic eyes.
Setting
Oftalvist, Alicante, Spain
Methods
One-hundred eyes of 100 myopic patients aged between 21 to 60 years were included in this study. Measurements of WTW and ACD distances were taken with each biometer for all patients in the same session. A t test and a p-value less than 0.05 was considered statistically significant when the measurements were compared. The agreement between biometers was studied by applying a Bland–Altman analysis.
Results
The mean WTW values obtained using the IOLMaster 500 and 700 biometers were 12.27±0.34 mm and 12.14±0.34 mm, respectively. The mean ACD distance values were 3.63 ±0.27 mm and 3.63±0.29, for the IOLMaster 500 and 700, biometers respectively. There were statistically significant differences between both devices only for WTW measurements (p<0.001), but not for ACD measurements (p=0.45). The limits of agreement obtained were wide in both types of measurements, being 0.429 mm for the WTW distance and 0.393 mm for the ACD distance.
Conclusions
There were statistically significant differences between the IOLMaster 500 and 700 biometers regarding WTW but not in ACD measurements in healthy myopic eyes. These differences could be clinically significant in some cases.