YAG laser capsulotomy
Eye Care
estimated about CNY 800-1500
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Description
A non-invasive outpatient procedure using a neodymium-doped yttrium aluminum garnet (YAG) laser to create an opening in the opacified posterior lens capsule following cataract surgery.
Main Uses
Primary clinical use is treatment of posterior capsule opacification (PCO) — the most common long-term complication after cataract surgery — to restore visual clarity without invasive surgery. Indicated when PCO causes significant visual symptoms (e.g., glare, blur, decreased contrast sensitivity) and best-corrected visual acuity declines to ≤20/40 despite refractive correction. Also used in select cases of secondary membrane-induced pupillary block or aphakic glaucoma.
Normal Range
YAG laser posterior capsulotomy is a surgical procedure, not a laboratory test with numerical values; therefore, there is no 'normal range' or quantitative reference interval. Success is assessed clinically by restoration of clear visual axis and improvement in visual acuity (typically ≥20/40 Snellen), absence of intraocular complications (e.g., IOP spike >30 mmHg, cystoid macular edema, retinal detachment), and complete opening of the opacified posterior capsule (typically 3–4 mm diameter).
Low Values - Possible Causes
N/A — This is not a quantitative diagnostic test; 'low values' do not apply. Clinical failure (e.g., incomplete capsulotomy, persistent visual impairment) may result from inadequate laser energy, poor patient fixation, dense fibrosis, anterior capsule involvement, or operator inexperience.
High Values - Possible Causes
N/A — This is not a quantitative diagnostic test; 'high values' do not apply. Adverse outcomes (e.g., elevated intraocular pressure, macular edema, retinal tear) are complication-related, not value-based. Excessive laser energy or excessive shot count (>100 pulses) may increase risk of IOP spike, lens pitting, or vitreous disturbance.
estimated about CNY 800-1500
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