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Implantable Collamer Lens (ICL) implantation

Eye Care estimated about CNY 30000-45000

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Description

A refractive surgical procedure involving the insertion of a phakic intraocular lens into the eye without removing the natural crystalline lens, used to correct myopia, hyperopia, or astigmatism.

Main Uses

Primary clinical use is correction of moderate-to-high myopia (−3.00 D to −18.00 D), hyperopia (+3.00 D to +10.00 D), and astigmatism (up to −6.00 D) in patients unsuitable for LASIK/SMILE due to thin corneas, dry eyes, or high refractive error. It is a reversible, additive refractive procedure preserving natural lens and corneal integrity.

Normal Range

ICL implantation is a surgical procedure, not a laboratory test with numerical values; therefore, there is no 'normal range' of quantitative indicators. Preoperative eligibility is determined by qualitative and quantitative anatomical criteria: anterior chamber depth ≥2.8 mm, endothelial cell count ≥2,000 cells/mm², stable refraction (≤0.5 D change in past year), and adequate vault (250–750 µm postoperatively). No serum or biochemical 'values' are measured.

Low Values - Possible Causes

N/A — ICL is not a diagnostic assay yielding low/high numerical results. However, preoperative contraindications that may preclude surgery include: insufficient anterior chamber depth (<2.8 mm), low endothelial cell density (<2,000 cells/mm²), narrow anterior chamber angle (<30° on gonioscopy), active uveitis, uncontrolled glaucoma, and cataract formation.

High Values - Possible Causes

N/A — ICL is not a quantitative test. 'High' values do not apply. However, relative contraindications include excessive vault (>1,000 µm) causing pupillary block or lens touch, high myopia (>−18.00 D) exceeding ICL power limits, large white-to-white corneal diameter (>13.0 mm) increasing dislocation risk, and elevated intraocular pressure postoperatively due to steroid response or angle closure.

ENT surgery refractive surgery phakic IOL

estimated about CNY 30000-45000