Femtosecond laser-assisted cataract surgery (FLACS)
Eye Care
≈ ¥18000-35000
(≈ $2500-5000)
30 min
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Description
Estimated cost for Femtosecond laser-assisted cataract surgery (FLACS) at general public hospitals in China is about ¥12600-28000, and at Grade 3A hospitals about ¥18000-35000, varying by hospital tier and region.
Main Uses
FLACS is primarily used to enhance precision and reproducibility in key steps of cataract surgery: 1) Creating corneal incisions (main and side ports) with customizable architecture and self-sealing geometry; 2) Performing circular, centered, and appropriately sized anterior capsulotomies (typically 5.0–5.2 mm diameter); 3) Fragmenting the crystalline lens nucleus to reduce phacoemulsification energy and time; 4) Treating preexisting corneal astigmatism via arcuate or limbal relaxing incisions (LRIs); 5) Improving safety and outcomes in complex cases (e.g., Fuchs endothelial dystrophy, shallow anterior chamber, or intumescent cataracts).
Normal Range
Not applicable —飞秒激光辅助白内障手术 (Femtosecond Laser-Assisted Cataract Surgery, FLACS) is a surgical procedure, not a diagnostic laboratory test. It has no numerical 'normal range' or quantitative biomarker values. Surgical outcomes are assessed qualitatively and quantitatively via postoperative metrics (e.g., corrected distance visual acuity ≥20/25, corneal incision accuracy within ±50 µm, capsulotomy centration error <0.25 mm, effective phacoemulsification time <1.5 min), but these are procedural performance indicators—not patient lab values.
Low Values - Possible Causes
N/A — FLACS does not produce 'low values' in the clinical laboratory sense. However, suboptimal procedural outcomes (e.g., low visual acuity gain, high residual astigmatism, or incomplete capsulotomy) may result from: 1) Poor patient fixation or intraoperative eye movement; 2) Inadequate corneal docking due to shallow anterior chamber or buphthalmos; 3) Opaque cornea or dense cataract limiting laser visualization; 4) Operator inexperience with laser platform calibration or treatment planning; 5) Undiagnosed zonular instability leading to capsular complications.
High Values - Possible Causes
N/A — FLACS is not a quantitative assay with 'high values'. However, elevated procedural risks or adverse events may correlate with: 1) Excessive laser energy causing corneal stromal gas bubbles or transient endothelial cell loss (>10% at 1 month); 2) Overly aggressive fragmentation pattern increasing cumulative dissipated energy (CDE >15 units); 3) High preoperative corneal astigmatism (>3.0 D) complicating toric IOL alignment; 4) Advanced pseudoexfoliation syndrome increasing risk of zonular dehiscence; 5) Prior ocular surgery (e.g., vitrectomy) altering anterior segment anatomy and laser coupling.