Comparison Of The Argos And Iolmaster 700 Ss-Oct Based Biometers In Eyes With Long Axial Length

Published 2026 - 44th Congress of the ESCRS

Reference: POCAT303 | Type: Poster | DOI: 10.82333/d793-5r80

Authors: Dr Juan Álvarez De Toledo* ¹ , Dr María Isabel Canut ¹ , Dr Clara Álvarez de Toledo ¹ , Dr Pedro Tañá-Sanz ¹ , Dr Santiago Tañá-Sanz ¹

¹Oftalvist Barcelona,Barcelona,Spain

Purpose

The aim of the current study was to assess the agreement between two swept-source optical coherence tomography (SS-OCT) based biometers, the Argos and the IOLMaster 700, in eyes with long axial length.

Setting

Oftalvist Clinic center (Barcelona, Spain).

Methods

This was single-centre, cross-sectional prospective, comparative study approved by the Ethics Committee of the Hospital Clínico San Carlos (Madrid, Spain) and registered at the public German Clinical Trials (DRKS00033316). Inclusion criteria were: age from 50 to 85 years, patients with clinically significant cataract graded by the LOCS III 3 or higher and axial length >25 mm. The exclusion criteria were: ocular trauma, intraocular lens surgery, poor fixation, corneal disease and any other corneal alteration that may affect the measurement process, eyes with a history of moderate to severe dry eye syndrome, any pathology of the anterior segment that may significantly affect the results among others.

Results

One-hundred and twenty-six eyes from 126 patients were recruited and analysed in the present clinical study. The mean and standard deviation of LOCS III grade for the study sample was 2.33±0.78. The mean and standard deviation of patient age was 65.21±7.86 years, ranging from 50 to 81. The acquisition success rate for both biometers was 100%. There were statistically significant differences between the two SS-OCT biometers for all the parameters evaluated (p < 0.001) except WTW (p = 0.088). The mean differences for K1, K2, CCT, WTW, ACD, LT and axial length were 0.102D, 0.133D, −14.224 μm, −0.018 mm, 0.108 mm, 0.029 mm, and −0.102 mm, respectively. No adverse events were reported in any patients during the measurement process

Conclusions

This study shows that the measurements obtained using two optical biometers for ocular biometers in eyes with long axial length should be assessed carefully when compared.