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Toric lens features haptic that resists decentration
SAN FRANCISCO — A toric IOL featuring a novel haptic system that resists rotational forces may maintain alignment of the lens in the capsular bag.
"When the [Rayner T-flex] lens is in the bag, and the bag starts contracting, the anti-vaulting haptics contract but do not allow any of the vertical forces to be transferred to the optic, so the optic location will stay the same," Ashok Vyas, FRCS, said at the American Society of Cataract and Refractive Surgery meeting here.
The T-flex lens is available in the widest range of vision correction and is capable of correcting –10 D to +35 D of sphere and +1 D to +11 D of cylinder, Mr. Vyas said. As well, an axis mark on the anterior surface is located next to the optic-haptic junction, which aids in identification of the horizontal axis during surgery.
In a study looking at the rotational stability of the lens at 6 months in 12 eyes, all lenses were within 5° of their position measured at 1 week after implantation. High patient satisfaction and best corrected visual acuity between 20/20 and 20/30 were reported, Mr. Vyas said.