The Optimization Of The Vault-Predicting Formula Based On The Anterior Segment Measurements From Artemis Insight 100
Published 2025 - 43rd Congress of the ESCRS
Reference: PP03.08 | Type: Free paper | DOI: 10.82333/t6e6-pf04
Authors: Fahri Onur Aydin* 1 , Emrullah Şimşek 1 , Burakhan Kursat Aksoy 1 , Ali Ceylan 1 , Yusuf Berk Akbas 1 , Murat Karapapak 1 , Serhat Ermiş 1 , Ece Özal 1 , Burcin KEPEZ YILDIZ 1
1Ophthalmology,Basaksehir Cam and Sakura City Hospital,Istanbul,Türkiye
Purpose
To optimize and evaluate the accuracy of the vault-predicting formula generated from a very high-frequency digital ultrasound robotic scanner (Artemis Insight 100).
Setting
This study comprised two parts. The first part was a retrospective study to optimize the formula based on the optical parameters obtained from Artemis Insight 100 VHF digital ultrasound robotic scanner (ArcScan, Inc), by comparing the predicted to the achieved vault. The second part involved a prospective study to validate the optimized formula, in which the consistency between the post-operative vault and the vault generated from the optimized formula was analyzed.
Methods
The relationship between the achieved lens vault (LVa) at one month after intraocular collamer lens (ICL) implantation surgery and the predicted vault (LVp) was analyzed by a retrospective study, and an optimized formula was built up. Then, the accuracy of the optimized vault-predicting formula was evaluated in a prospective study by comparing the LVa and the predicted vault from the optimized formula (LVop).
Results
The retrospective study included 77 patients (133 eyes) while the prospective study enrolled 90 patients (170 eyes). The difference between LVp and LVa at one month after surgery was statistically significant (P<0.05), and the linear regression analysis of LVa against LVp yielded a good fit (R2 = 0.68). The optimized vault-predicting formula was LVop (μm) = 1.21×LVp (μm) +124.73. In the validation study, the difference between LVop and LVa was not statistically significant (P=0.10), and a good agreement between LVop and LVa was shown by Bland-Altman analysis.
Conclusions
The optimized vault-predicting formula could predict the actual LV after ICL implantation surgery, help to select an appropriate ICL size and reduce the need for re-operation.