Semi | 合法醫療器材資訊網

Semi-rigidorrigidgaspermeable(RGP)lensesareindicatedforpatientswithveryhighastigmatismwhichcannotbecompensatedwithasoftlens,orthosewith ...

Astigmatism can be corrected by glasses or toric contact lens.

If the patient prefers not to wear glasses or contact lenses, surgical solutions are available. Refractive surgery[1] includes several techniques depending on the diagnosis:

Excimer laser[2]: applied to the thickness of the cornea, used to correct moderate astigmatism. Femtosecond laser[3] is often used during laser refractive procedures.

Incisional technique. (Arcuate keratotomy[4]): consisting of making incisions on the corneal surface, indicated for high astigmatism.

Toric intraocular lenses[5]: phakic (implanted between the cornea and crystalline lens) and pseudophakic (replacing the crystalline lens). It is commonly used to correct high astigmatism

The ophthalmolog...