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PubMed · 42715027

Viscoelastic-Assisted Patient Interface Docking: A Technical Optimization in LenSx Femtosecond Laser-Assisted Cataract Surgery.

Danmin Cao·Wenjing Luo·Juan Li·Tingting Peng·Huafang Guo·Anqi Xie·Ying Sun·Yong Wang
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Abstract

PURPOSE: To evaluate the efficacy of viscoelastic-assisted patient interface docking in LenSx (Alcon Laboratories, Inc) femtosecond laser-assisted cataract surgery (FLACS). METHODS: This was a randomized controlled trial. Patients undergoing FLACS from January to August 2025 at Aier Eye Hospital of Wuhan University were randomized via a random number table to receive balanced salt solution (BSS) or visoeleastic as the patient interface docking medium. The primary outcome was docking efficiency, measured by one-time docking success rate, the number of docking attempts, and mean docking time. Secondary outcomes included surgical safety (subconjunctival hemorrhage, capsulotomy completeness/tear rate), laser treatment duration (anterior capsulotomy time, nucleus pretreatment time, total laser emission time), and patient comfort (post-laser pain sensation). RESULTS: A total of 100 patients were enrolled, 50 in each group. Suction loss occurred in 7 patients (14%) in the BSS group and 1 patient (2%) in the viscoelastic group; the one-time docking success rate was significantly higher in the viscoelastic group (98%) than in the BSS group (86%) (chi-square = 3.93, P < .05). The viscoelastic group also had fewer mean docking attempts (1.02 &#xb1; 0.14) than the BSS group (1.16 &#xb1; 0.42), showing a significant difference (t = 2.23, P < .05). The viscoelastic group exhibited significantly shorter mean docking time (44.66 &#xb1; 4.47 seconds) compared to the BSS group (48.62 &#xb1; 3.11 seconds) (t = 2.17, P < .05). No significant differences were observed between the groups in subconjunctival hemorrhage, capsulotomy completeness/tear rate, anterior capsulotomy time, nucleus pretreatment time, total femtosecond laser emission time, or patient-reported pain sensation (all P > .05). CONCLUSIONS: Viscoelastic-assisted patient interface docking in FLACS effectively elevates one-time docking success rate, reduces docking attempts, and shortens docking time.

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HumansFemaleAgedMaleLaser TherapyMiddle AgedVisual AcuityCataract ExtractionViscoelastic SubstancesLens Implantation, IntraocularProspective StudiesPhacoemulsificationViscosupplementsJournal ArticleRandomized Controlled Trial

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Danmin Cao, Wenjing Luo, Juan Li, Tingting Peng, Huafang Guo, Anqi Xie, Ying Sun, Yong Wang. 2026-09-01. Viscoelastic-Assisted Patient Interface Docking: A Technical Optimization in LenSx Femtosecond Laser-Assisted Cataract Surgery.. https://doi.org/10.3928/1081597x-20260728-05

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Journal Article; Randomized Controlled Trial resourceAged subjectFemale subjectHumans subjectJournal Article subjectMale subjectMiddle Aged subjectRandomized controlled trials study

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