Advances in ophthalmology practice and research · 2025
The influence of a modified haptic on preventing toric IOL rotation in high rotation risk eyes.
СтатьяНазвание и аннотация: Перевод в очереди
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Liu Shuyu, Chen Chao, Zhou Jitong, Cheng Kaiwen, Du Yu, Meng Jiaqi, Lu Yi, He Wenwen, Zhu Xiangjia
Аннотация
PURPOSE: To evaluate the rotational stability and astigmatic correction of a C-loop frosted haptic toric intraocular lens (IOL) compared with a plate-haptic toric IOL with/without capsular tension ring (CTR) implantation in cataractous eyes with high rotation risk due to large white-to-white (WTW) distance.
METHODS: This retrospective cohort study included 90 cataractous eyes with WTW > 11.8 mm, which received implantation of either a C-loop frosted haptic toric IOL (Group ZCU), a plate-haptic toric IOL (Group 709), or a plate-haptic toric IOL with CTR (Group 709 + CTR). IOL rotation and residual astigmatism were assessed one month postoperatively.
RESULTS: Group ZCU demonstrated significantly better rotational stability, with a mean rotation of 1.87° ± 1.03°, compared to 4.63° ± 2.12° in Group 709 and 4.13° ± 1.86° in Group 709 + CTR (both P < 0.05). Residual astigmatism was also significantly lower in Group ZCU (0.36 ± 0.26 D), compared to Group 709 (0.54 ± 0.43 D) and Group 709 + CTR (0.65 ± 0.27 D; both P < 0.05). A positive correlation between WTW and IOL rotation was found in Group 709 (r = 0.419, P = 0.021) and Group 709 + CTR (r = 0.403, P = 0.027), but not in Group ZCU (r = -0.180, P = 0.341). Lens thickness and WTW were identified as independent predictors of rotation in Group 709, whereas only WTW was significant in Group 709 + CTR.
CONCLUSIONS: In eyes with high rotation risk due to large WTW (> 11.8 mm), the ZCU IOL exhibits superior rotational stability and astigmatic correction compared to the 709 IOL, regardless of whether CTR is used.
METHODS: This retrospective cohort study included 90 cataractous eyes with WTW > 11.8 mm, which received implantation of either a C-loop frosted haptic toric IOL (Group ZCU), a plate-haptic toric IOL (Group 709), or a plate-haptic toric IOL with CTR (Group 709 + CTR). IOL rotation and residual astigmatism were assessed one month postoperatively.
RESULTS: Group ZCU demonstrated significantly better rotational stability, with a mean rotation of 1.87° ± 1.03°, compared to 4.63° ± 2.12° in Group 709 and 4.13° ± 1.86° in Group 709 + CTR (both P < 0.05). Residual astigmatism was also significantly lower in Group ZCU (0.36 ± 0.26 D), compared to Group 709 (0.54 ± 0.43 D) and Group 709 + CTR (0.65 ± 0.27 D; both P < 0.05). A positive correlation between WTW and IOL rotation was found in Group 709 (r = 0.419, P = 0.021) and Group 709 + CTR (r = 0.403, P = 0.027), but not in Group ZCU (r = -0.180, P = 0.341). Lens thickness and WTW were identified as independent predictors of rotation in Group 709, whereas only WTW was significant in Group 709 + CTR.
CONCLUSIONS: In eyes with high rotation risk due to large WTW (> 11.8 mm), the ZCU IOL exhibits superior rotational stability and astigmatic correction compared to the 709 IOL, regardless of whether CTR is used.