A New Intraocular Lens Design to Reduce Spherical Aberration of Pseudophakic Eyes

Holladay, Jack T.; Piers, Patricia; Koranyi, Gabor; Mooren, Marrie Van der; Norrby, Nils-Erik

doi:10.3928/1081-597x-20021101-04

Cited by 474 publications

(59 citation statements)

References 30 publications

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“…>7° of IOL tilt significantly decreases visual acuity. 13 In our series, the mean IOL tilt of 2.5°±4.5° horizontally and -4.00°±2.754° vertically is within the limits to avoid visual disturbances. The two patients with replacement of IOL had a poorer spherical equivalence, probably because of the use of a new IOL, the presence of larger (2.75 mm) corneal incision, and the manipulation of IOL explantation.…”

Section: Discussionsupporting

confidence: 45%

Refixation of dislocated intraocular lens using the double needle flanged technique

Chow

Yuk

Fung

2022

Hong Kong Journal of Ophthalmology

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Purpose: To review cases of refixation of the dislocated three-piece intraocular lens (IOL) using the Yamane flanged technique. Methods: Medical charts of six patients who underwent refixation of subluxed or posteriorly dislocated threepiece IOLs using the Yamane flanged technique between January and December 2018 were retrospectively reviewed. The time from initial IOL implantation to IOL refixation, logMAR best-corrected visual acuity at baseline and months 1, 3, and 6, spherical equivalent at month 6, IOL horizontal and vertical tilt at month 6, and complications were documented. Results: The mean time from IOL implantation to IOL refixation was 12.6±9.7 years. Of the six cases, four had successful refixation of IOL and two had unsuccessful refixation of IOL and necessitated removal of the IOL and implantation of a new one. The mean logMAR best-corrected visual acuity improved from 1.48 preoperatively to 0.680 at month 1, 0.400 at month 3, and 0.320 at month 6. The mean spherical equivalent at month 6 was -0.520. In the four cases with the original IOL, at month 6 the IOL horizontal tilt was 2.5°±4.5° and the vertical tilt was -4.00°±2.754°. Conclusion:Using the Yamane flanged technique to refixate the dislocated IOL achieves good stability and spherical equivalent of the IOL. Intra-operative assessment of the IOL and correct angulation and manipulation of the haptics are crucial for the success of surgery.

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Section: Discussionsupporting

confidence: 45%

Refixation of dislocated intraocular lens using the double needle flanged technique

Chow

Yuk

Fung

2022

Hong Kong Journal of Ophthalmology

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“…The effect of the IOL design on aberrations was reported by Holladay et al [19]. Since the Trinova IOL is a diffractive IOL, more aberrations would be expected.…”

Section: Discussionmentioning

confidence: 79%

Comparison of Sinusoidal Vision Trifocal Intraocular Lens(IOL) with Monofocal Extended Depth of Focus (EDOF) IOL After Cataract Surgery

Arslan

Duru

2022

Preprint

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Purpose: To evaluate and compare the clinical results of sinusoidal vision trifocal intraocular lens (IOL) (AcrivaUD Trinova) and monofocal extended depth of focus (EDOF) IOL (Tecnis Eyhance ICB00) Methods: This study included 98 eyes of 65 patients implanted with sinusoidal vision trifocal IOL and 79 eyes of 53 patients implanted with monofocal EDOF IOL. The following were evaluated; Uncorrected distance(UDVA), intermediate (UIVA), near visual acuity (UNVA), corrected distance(CDVA), intermediate(CIVA) , near visual acuity (CNVA), halo, glare, ocular aberrations, contrast sensitivity. In addition, The National Eye Institute 25-Item Visual Function Questionnaire (NEI-VFQ 25) results of patients were analysed.Results: Three months postoperatively, there were no differences between the groups in terms of UDVA and UIVA(respectively, p=0.780 and p=0.317). Near vision was found to be better for the Trinova group than for the Eyhance group(p<0.001). Trinova IOL provided better contrast sensitivity at all spatial frequencies than Eyhance IOL (p<0,001). Halo perception was reported for only six eyes, all of which were in the Trinova group (6.9%). Glare perception was found to be more common in the Trinova group (15 eyes(17.2%)), than in the Eyhance group(four eyes(5.3%)). With regard to the composite score of NEI-VFQ 25, no significant difference was found between the groups. In the analyses of subgroups, the near activities score was higher in the Trinova group, but distance activities and driving scores were higher in the Eyhance group (p=0.201).Conclusion: Both lenses have been shown to have satisfactory levels of distance and intermediate vision, with high levels of patient satisfaction.

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“…Previous studies indicated that decentration would induce coma, astigmatism and defocus (14). It has been (15) reported that visual function of aspheric IOLs is worse than spherical IOLs when the tilt is more than 7 • or when decentration is more than 0.4 mm. Another study (14) based on the Liou-Brennan model eye found that the aspherical IOLs are more sensitive to decentration and tilt than spherical IOLs.…”

Section: Discussionmentioning

confidence: 99%

Stability of Intraocular Lens With Different Haptic Design: A Swept-Source Optical Coherence Tomography Study

et al. 2021

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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.

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A New Intraocular Lens Design to Reduce Spherical Aberration of Pseudophakic Eyes

Cited by 474 publications

References 30 publications

Refixation of dislocated intraocular lens using the double needle flanged technique

Refixation of dislocated intraocular lens using the double needle flanged technique

Comparison of Sinusoidal Vision Trifocal Intraocular Lens(IOL) with Monofocal Extended Depth of Focus (EDOF) IOL After Cataract Surgery

Stability of Intraocular Lens With Different Haptic Design: A Swept-Source Optical Coherence Tomography Study

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