关键词: 白内障, 角膜散光, 散光矫正

Abstract: Approximately 40% of cataract patients have preoperative corneal astigmatism exceeding 1 diopter（D）. For correcting corneal astigmatism during cataract surgery, the methods include corneal incision correction and implantation of Toric intraocular lenses. Corneal incisional methods, such as clear corneal incisions, limbal relaxing incisions, and corneal relaxing incisions, which is effective for low to moderate astigmatism, offering advantages in ease of operation and cost-effectiveness. However, their long-term stability is somewhat limited due to factors such as age-related astigmatic changes, surgically induced astigmatism, and regression of the astigmatic correction. This makes precise calculation and personalized incision design essential for optimal outcomes. In contrast, Toric IOL provide reliable correction for various types and magnitudes of astigmatism but carry the risk of postoperative axis rotation. For patients with significant preoperative biometric errors (e.g. high myopia or keratoconus), the newer generation of light-adjustable intraocular lenses may be a preferable option.

Key words: Cataract, Corneal astigmatism, Astigmatism correcting