In Vivo Study Of A New Type Of Scleral Fixation Lens (Carlevale ®).
Published 2025 - 43rd Congress of the ESCRS
Reference: PO438 | Type: Free paper | DOI: 10.82333/8abe-ag97
Authors: Alfonso Anton* 1 , Julia Boldu 2 , Laura Sanchez 2 , Estela Sanchez 3 , Antonio Morilla 3 , Eleonora Ayala 2 , Jose M Navero 4
1Glaucoma,Institut Catala de Retina,Barcelona,Spain;Medicina,Uiversitat Internacional de Catalunya,Barcelona,Spain, 2Glaucoma,Institut Catala de Retina,Barcelona,Spain, 3Research,Institut Catala de Retina,Barcelona,Spain, 4Glaucoma,Institut Catala de Retina,Barcelona,Spain;Oftalmologia,Hospital de Calella,Barcelona,Spain
Purpose
To study the refractive outcomes, in vivo positioning by anterior ultrasonic biomicroscopy (UBM) and complications of the Carlevale® type scleral fixation lens.
Setting
Tertiary referral hospital Fundación Jiménez Díaz, Madrid, Spain.
Methods
Retrospective study including six patients treated for aphakia with scleral fixation intraocular lens implantation (Carlevale ®) operated at the Fundación Jiménez Díaz, during the year 2022 with at least one year of follow-up. A complete examination was performed by collecting the best corrected visual acuity (BCVA), autorefractometer, subjective prescription, endothelial count (EC), macular optical coherence tomography (OCTm), corneal topography, anterior ultrasonic biomicroscopy (UBM) and slit lamp in their routine check-ups.
Results
We present 6 patients, mean age 67.5 years [range 34-90], 5 left eyes and 1 right eye. Previous BCVA was in the hand motion (HM) range at 0.7 and post-surgery between HM to 1.0. No significant astigmatism changes where found. The EC showed a variable count from 1418 to 2653 cells/mm2 with no significant loss. On OCTm, no post-surgical macular edema was observed. In the UBM, we found an adequate positioning of 100% of patients in the horizontal axis, with a tilt of less than 5º and a vertical tilt between 10 and 20º in 4 cases.
Conclusions
Scleral fixation lenses (Carlevale®) are a very good option for patients who cannot opt for other types of lenses due to a lack of zonular support or a lack of capsular bag. They usually present good visual acuity, except in cases with previous or new pathologies, not related to lens placement. Despite the slight vertical tilt found in the in vivo study, it does not affect the patient's visual acuity and refractive outcomes. No relevant intraoperative or postoperative complications were observed.