This prospective comparative cohort study evaluates and compares postoperative rotational stability and time-course dynamics of three commercially available toric intraocular lenses (TECNIS Toric II \[ZCU\], AcrySof IQ Toric, and AT TORBI 709M) after phacoemulsification cataract surgery. Rotation is quantified by registering postoperative retroillumination photographs to the end-of-surgery baseline using iris/scleral landmarks, with follow-up at postoperative day 1, day 3, week 1, week 2, month 1, and month 3. Associations between rotational outcomes and ocular biometric parameters are analyzed using linear mixed-effects models to inform individualized IOL selection and perioperative management.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
400
Using TECNIS Toric II (ZCU) intraocular lens during standard phacoemulsification cataract surgery.
Using AcrySof IQ Toric intraocular lens during standard phacoemulsification cataract surgery.
Using the AT TORBI 709M intraocular lens during standard phacoemulsification cataract surgery.
Eye and ENT hospital of Fudan University
Shanghai, Shanghai Municipality, China
RECRUITINGAbsolute rotational misalignment of toric intraocular lens (IOL) measured in degrees
Absolute rotation of the implanted toric intraocular lens (IOL) relative to the intended axis, measured in degrees. Rotation will be quantified by registering postoperative retroillumination images to the end-of-surgery baseline frame using iris or scleral landmarks. The absolute rotation angle will be calculated for each follow-up visit.
Time frame: Postoperative day 1, day 3, week 1, week 2, month 1, and month 3.
Uncorrected and corrected distance visual acuity (UDVA and CDVA)
Uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA) measured using a standardized logarithm of the minimum angle of resolution (logMAR) visual acuity chart during follow-up.
Time frame: postoperatively on 1 day, 3 days, 1 week, 2 weeks, 1 month and 3 months
Postoperative residual refractive astigmatism measured in diopters
Residual refractive astigmatism measured by manifest refraction during follow-up visits and reported in diopters (D).
Time frame: Postoperative day 1, day 3, week 1, week 2, month 1, and month 3.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.