Abstract
Purpose: To investigate the stability of intraocular lens (IOLs) with different haptics by swept-source anterior-segment optical coherence tomography (AS-OCT).Methods: Sixty-eight eyes from 55 patients received the implantation of Rayner 920H (Closed C-loop Group), Zeiss 509M (Plate Group) or Lenstec SOFTEC HD (C-loop Group) IOLs. The tilt and decentration of IOLs were evaluated using AS-OCT at least 1 month postoperatively.Results: Mean decentration and tilt of IOLs were 0.18 ± 0.12 mm (range 0.02 to 0.59 mm) and 5.63 ± 1.65° (range 2.2 to 9.6°) respectively. Decentration was significantly smaller in the plate haptic group (0.12 ± 0.06 mm) as compared to the C-loop group (0.22 ± 0.13 mm, P = 0.02). The tilt of IOL was also significantly smaller in the plate haptic group (4.96 ± 0.89°) as compared to the C-loop group (6.28 ± 1.83°, P = 0.01). There was marginal difference between the Closed C-loop group (5.52 ± 1.74°) and C-loop group (6.28 ± 1.83°, P = 0.07).Conclusions: The Plate-haptic IOLs should have better stability for the decentration and tilt than the C-loop design IOLs.
Highlights
IntroductionPhacoemulsification with foldable intraocular lens (IOLs) implantation is still the main treatment for cataract [3]
Cataract is the leading cause of reversible blindness in the world [1, 2]
Decentration was significantly smaller in the plate haptic group (0.12 ± 0.06 mm) as compared to the C-loop group (0.22 ± 0.13 mm, P = 0.02)
Summary
Phacoemulsification with foldable intraocular lens (IOLs) implantation is still the main treatment for cataract [3]. The positions of IOLs are crucial for visual outcome after cataract surgeries. Any decentration and tilt of IOLs would induce wavefront aberrations and affect visual performance [7]. The maintenance of IOL stability relies on the support of the haptics in the capsular bag [8]. Using OPD-Scan III aberrometer (Nidek Co, Ltd., Gamagori, Japan), another study reported that the Plate-haptic IOLs show better stability than the C-loop IOLs in myopic eyes [8]. Both studies measured decentration and tilt of IOLs manually
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