ESCRS - PO107 - Evaluation Of Ss-Oct And Pci Optical Biometry In Eyes With Dense Cataract

Evaluation Of Ss-Oct And Pci Optical Biometry In Eyes With Dense Cataract

Published 2022 - 40th Congress of the ESCRS

Reference: PO107 | Type: Free paper | DOI: 10.82333/1a96-8g77

Authors: Paz Paz Orts-Vila* 1 , Pedro Taña-Sanz 1 , Robert Montes-Mico 2 , Salvador Aguilar-Córcoles 1 , Pedro Tañá-Rivero 1

1Oftalvist,Alicante,Spain, 2University of Valencia,Valencia,Spain

Purpose

The objective of this study was to compare the acquisition rate between two optical biometers, based on different optical technologies, in eyes with dense cataracts as well as to compare the values of axial length obtained. In addition, a measurement was also made using an ultrasonic contact biometer as well as the evaluation of lens dysfunction with the Itrace device.

Setting

Oftalvist, Alicante, Spain

Methods

Eyes with nuclear, cortical, or posterior subcapsular cataracts with grade ≥3 considering the LOCS III classification, and a dysfunctional lens index (DLI) ≤5 were included. This study was approved by the ethics committee of the Hospital Clínico San Carlos and registered in the clinicaltrials.gov (NCT05239715). The measurements obtained with the Argos and Pentacam AXL, and the ultrasonic biometer OcuScan RxP were analyzed. In addition, a measurement of the DLI was carried out with the Itrace equipment and the Pentacam Nucleus Staging (PNS) value with the Pentacam AXL as objective metrics to assess the degree of cataract. The optical biometer measurement sequence was random and the ultrasonic biometer was the last measurement carried out.

Results

In this preliminary study, 21 eyes have been analyzed. The mean value of the DLI was 3.13±1.17, the PNS was 2.33±0.96 and the visual acuity with the best-distance correction was 0.38±0.22 Snellen decimal. The average value of the axial length for the 3 devices was 24.05±1.86 mm, 24.07±2.17 mm and 23.98±1.85 mm, for the Argos, Pentacam and OcuScan, respectively. The agreement study for the axial length measurements between the biometers revealed that the mean difference between the OcuScan and Argos biometers was -0.09±0.31 mm, between the OcuScan and Pentacam was -0.18±0.28 mm and between the Argos and the Pentacam was 0.02±0.06 mm. In relation to the acquisition rate, this was 100% for the Argos and OcuScan and 66.66% for the Pentacam.

Conclusions

The results obtained in this study show differences between the measurements obtained using the three biometers. The Argos optical biometer based on SS-OCT technology shows, with the OcusScan ultrasonic biometer, a higher acquisition rate than the Pentacam AXL optical biometer based on PCI technology in eyes with dense cataracts.