Research progress on effect of Toric intraocular lens decentration,tilt and rotation on visual quality

Abstract

With the development of refractive cataract surgery,Toric intraocular lens(Toric IOL)has been widely used as a functional IOL in the clinical practice. The implantation of Toric IOL in cataract patients can effectively correct preoperative corneal astigmatism and reduce postoperative residual astigmatism, thus obtaining better uncorrected visual acuity and visual quality. Mild decentration, tilt and rotation of Toric IOL do not cause significant subjective discomfort in patients. However, a certain degree of decentration, tilt and rotation of Toric IOL can increase astigmatism and higher-order aberration, resulting in decreased visual acuity and visual quality. Based on relevant results at home and abroad, this article reviewed the influence of the decentration, tilt and rotation of Toric IOL on visual quality at both basic and clinical levels and discussed the existing problems and prospects.

Keywords

• astigmatism
• intraocular lens
• decentration
• tilt
• rotation
• visual quality