#laser surgery
- Aberrometer — A high-precision clinical diagnostic device used in ophthalmology to automatically measure and record the total optical aberrations of the eye (both lower-order aberrations like myopia and astigmatism, and higher-order ones like coma or trefoil). The device operates based on wavefront analysis, projecting a harmless laser beam onto the retina and measuring light distortions as it exits the eye, providing an essential digital map for customized refractive surgery.
- Arytenoidectomy — A high-precision surgical intervention consisting of the partial or total excision of one or both arytenoid cartilages of the larynx. This structural surgical procedure is primarily performed to treat bilateral vocal cord paralysis in abduction (median position), aiming to widen the restricted glottic space and alleviate severe respiratory insufficiency, thereby restoring a functional airway without completely compromising phonation.