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. 2024 Jun;13(6):1527-1535.
doi: 10.1007/s40123-024-00933-y. Epub 2024 Apr 6.

Dynamic Changes of Capsular-Intraocular Lens Adhesion in Plate-Haptic Hydrophilic and Loop-Haptic Hydrophobic Eyes

Yinying Zhao  1   2 , Zhewen Zhang  1   2 , Fuman Yang  1   2 , Pingjun Chang  1   2 , Dandan Wang  1   2 , Feng Huang  1   2 , Yune Zhao  3   4
Affiliations

Dynamic Changes of Capsular-Intraocular Lens Adhesion in Plate-Haptic Hydrophilic and Loop-Haptic Hydrophobic Eyes

Yinying Zhao et al. Ophthalmol Ther. 2024 Jun.

Abstract

Introduction: The aim of this work is to investigate the dynamic changes of capsular-intraocular lens (IOL) adhesion in plate-haptic hydrophilic and loop-haptic hydrophobic eyes.

Methods: Cataract eyes that met the inclusion criteria were randomly assigned to receive implantation of a plate-haptic hydrophilic or loop-haptic IOL. The anterior capsular adhesion, posterior capsular adhesion, and the configurations of the capsular bend were evaluated using swept-source optical coherence tomography at 1 day, 1 week, 1 month, and 3 months postoperatively.

Results: In total, 66 eyes of 66 patients were eligible for the analysis: 33 in the plate-haptic group and 33 in the loop-haptic group. The contact between the anterior capsule and IOL in the plate-haptic group was earlier than that in the loop-haptic group upon comparing the measurements taken at 1 day and 1 week (p = 0.001, p = 0.003, respectively). The complete attachment of the posterior capsule and IOL in the plate-haptic group was significantly greater at 1 week, 1 month, and 3 months (p = 0.001, p = 0.000, p = 0.001, respectively). The capsular bend index of the plate-haptic group was significantly greater than that of the loop-haptic group at each time points except at 1 day (p = 0.007, p = 0.049, p = 0.005, respectively). Furthermore, a new type of capsular bend, "cocked adhesion," was observed in the plate-haptic eyes.

Conclusions: The plate-haptic IOL demonstrated excellent capsular adhesion compared to the loop-haptic IOL, which was probably attributed to haptic compressibility. A special cocked configuration of the capsular bend in plate-haptic IOL was observed for the first time. Further studies are warranted to confirm the effect of the new type of capsular bend.

Keywords: Capsular adhesion; Intraocular lens; Loop-haptic; Plate-haptic.

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Conflict of interest statement

All named authors confirm that they have no competing interests to declare.

Figures

Fig. 1
Fig. 1
The position of the scanning: perpendicular to the haptic as 0° and ± 30° of three optic districts
Fig. 2
Fig. 2
Number (%) of eyes with anterior capsule-intraocular lens adhesion at each follow-up between the plate-haptic and loop-haptic groups. *Statistically significant differences among groups (p value < 0.05). NS no significance (p value > 0.05)
Fig. 3
Fig. 3
Number (%) of eyes with posterior capsule-intraocular lens (IOL) adhesion at each follow-up between the plate-haptic and loop-haptic groups. N-A non-attached, I-A incomplete attachment, C-A completed attachment, NS no significance (p value > 0.05); **Statistically significant differences among groups (p value < 0.01). ***Statistically significant differences among groups (p value < 0.01)
Fig. 4
Fig. 4
Post-operative optical coherence tomography images of the plate-haptic and loop-haptic intraocular lenses and capsules
See this image and copyright information in PMC

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