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Grading for suction loss in small incision lenticule extraction
Qing Huang1, Lina Liu2, Pingqi Ma1
1Department of Ophthalmology, Army Medical University of People's Liberation Army, Chongqing, China.
International Ophthalmology
|August 31, 2022
Summary
Progressive suction loss is common in small-incision lenticule extraction (SMILE). Grading this suction loss helps understand its causes and guides interventions to improve SMILE safety and effectiveness.
Area of Science:
- Ophthalmology
- Surgical Technology
- Refractive Surgery
Background:
- Suction loss during small-incision lenticule extraction (SMILE) can impact procedure outcomes.
- Understanding suction ring stability is crucial for preventing complications.
Purpose of the Study:
- To characterize suction loss in SMILE procedures.
- To analyze factors influencing suction ring stability.
- To classify and grade suction loss for targeted prevention and control.
Main Methods:
- Retrospective analysis of surgical records and videos from SMILE procedures (June 2014-June 2017).
- Classification and grading of suction loss based on characteristics and eye/head movement.
- Observation of intervention effects on suction loss.
Main Results:
- Progressive suction loss occurred in 11% of cases, while sudden loss was rare (0.17%).
- The superior part was most affected by progressive suction loss (63.4%).
- Grades 1 and 2 progressive suction loss were effectively managed with intraoperative interventions.
Conclusions:
- Progressive suction loss is the predominant type during SMILE.
- A standardized grading system aids in understanding suction loss mechanisms.
- Targeted interventions based on classification can mitigate suction loss-induced damage, enhancing SMILE safety and efficacy.
