Mini-haptics to improve capsular fixation of plate-haptic silicone intraocular lenses

Kent, David; Peng, Qun; Isaacs, Robert T.; Whiteside, Stephen B.; Barker, Derek L.; Apple, David J.

doi:10.1016/s0886-3350(98)80263-0

Cited by 13 publications

(2 citation statements)

References 7 publications

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“…24 Polyimide loops added to silicone haptics increase the stability of an IOL in the capsular bag. 25 This might explain why we found less rotation of the Trulign toric IOL than that reported for other toric IOL models. Furthermore, the size of the IOL relative to the capsular bag diameter is important for stability because a shorter length might allow more rotation before the capsular bag shrinks.…”

Section: Discussionmentioning

confidence: 43%

Safety and effectiveness of a new toric presbyopia-correcting posterior chamber silicone intraocular lens

Pepose¹,

Hayashida²,

Hovanesian³

et al. 2015

Journal of Cataract and Refractive Surgery

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Section: Discussionmentioning

confidence: 43%

Safety and effectiveness of a new toric presbyopia-correcting posterior chamber silicone intraocular lens

Pepose¹,

Hayashida²,

Hovanesian³

et al. 2015

Journal of Cataract and Refractive Surgery

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“…14 Simply increasing the size of a plate haptic is not a solution as this can cause distortion of the capsular bag and zonules 15 and a reliable relationship between the capsular bag and ocular biometry has not been established. 16 Kent et al 17 demonstrated, in animal eyes, that the addition of mini polyimide haptics to a plate haptic significantly improved capsular bag fixation. These findings were supported by a large in-vivo study involving a presbyopia correcting IOL with mini polyimide haptics (Trulign toric) which exhibited high levels of rotational stability.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of a One-Piece Aberration Neutral Hydrophobic Acrylic Toric Intraocular Lens

Buckhurst¹,

Lau²,

Williams³

et al. 2022

OPTH

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Purpose To assess the refractive outcomes, intraocular centration and rotational stability of the enVista toric intraocular lens (IOL). Patients and Methods This study was a prospective, multi-centre, double-masked, partially randomized and partially controlled clinical trial. A total of 191 participants were implanted with toric IOL (1.25, 2.00, or 2.75D) or non-toric IOL (control). The lowest range of corneal astigmatic eyes were randomized to 1.25D toric or control. Higher astigmatic powers were allocated to the treatment arm. Subjects were assessed immediately postoperatively, 1–2 (V1), 7–14 (V2), 30–60 (V3) and 120–180 (V4) days postoperatively. Unaided (UDVA) and distance corrected visual acuity (CDVA), manifest refraction and corneal curvature were assessed. Vector analysis was used to calculate surgically induced refractive correction (SIRC), correction ratio (CR), error magnitude (EM) and error vector (EV). Slit-lamp photography was used to measure centration and rotational stability. Results UDVA was better in the low toric IOL group in comparison with the control group at V4 (p<0.001). There was an undercorrection in the control group, whereas the average CR for all toric subjects was 1.00 ± 0.32: V2, 0.98 ± 0.34: V3 and 0.98 ± 0.35: V4. The absolute IOL rotational stability in comparison to the position of the IOL at V1 was 1.35° ± 0.97°: V2, 1.35° ± 1.07°: V3 and 1.38° ± 1.25°: V4. Decentration was generally inferior (V1: 0.04 ± 0.22mm, V2: 0.05± 0.20mm, V3: 0.08 ± 0.22mm, V4: 0.04 ± 0.21mm) and nasal (V1: 0.19 ± 0.23mm, V2: 0.20 ± 0.20mm, V3: 0.20 ± 0.21mm, V4: 0.17 ± 0.22mm). Conclusion Participants with low levels of corneal astigmatism achieved superior vision and refractive outcomes in the low toric group over the control. Moderate and high levels of astigmatism achieved excellent refractive outcomes. The toric IOL demonstrated high levels of both rotational and centrational stability.

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Evolution of Intraocular Lens Implantation

Werner¹,

Izak²,

Isaacs³

et al. 2009

Ophthalmology

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Mini-haptics to improve capsular fixation of plate-haptic silicone intraocular lenses

Abstract: Lens epithelial cell proliferation around the mini-haptics significantly improved capsular bag fixation of the plate-haptic silicone IOL. This should decrease the incidence of clinical decentration and dislocation.

Cited by 13 publications

References 7 publications

Safety and effectiveness of a new toric presbyopia-correcting posterior chamber silicone intraocular lens

Safety and effectiveness of a new toric presbyopia-correcting posterior chamber silicone intraocular lens

Efficacy of a One-Piece Aberration Neutral Hydrophobic Acrylic Toric Intraocular Lens

Evolution of Intraocular Lens Implantation

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