The Influence of Tilt, Decentration, and Pupil Size on the Higher-Order Aberration Profile of Aspheric Intraocular Lenses

McKelvie, James; McArdle, Brian H.; McGhee, Charles N J

doi:10.1016/j.ophtha.2011.02.025

Cited by 87 publications

(71 citation statements)

References 51 publications

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“…As indicated in previous studies, [10][11][12]22,23 increased pupil size was also found to increase the ocular aberrations. A similar phenomenon was observed in this study: all the ocular and internal HOAs were increased due to mydriasis, except internal SA, which might be neutralized by the implanted aspherical IOLs with negative SA, whose effects were much highlighted when pupil was dilated.…”

Section: Figuresupporting

confidence: 73%

“…Higher 12,20 demonstrated that increased coma aberrations could be induced if tilt or decentration happens. The IOL position involved in our study was observed by Pentacam Scheimpflug System (Oculus) and no remarkable tilt or decentration was found in either normal AL or HM groups.…”

Section: Figurementioning

confidence: 99%

“…Previous researches [10][11][12] also showed that pupil size has an effect on HOAs. For postoperative cataract patients, this means that patients may obtain variable visual quality from day to night because of such HOAs' variations.…”

Section: Introductionmentioning

confidence: 99%

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Effect of pupil size on higher-order aberrations in high-myopic pseudophakic eyes with posterior staphyloma

Zhu

Yang

et al. 2014

Eye

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Purpose To evaluate the effect of pupil size on higher-order aberrations (HOAs) in highmyopic pseudophakic eyes with posterior staphyloma using KR-1W aberrometer. Methods Forty eyes of 40 high-myopic cataract patients with posterior staphyloma and 20 eyes of 20 age-related cataract patients with normal axial length were recruited. At 1 month after phacoemulsification and intraocular lens implantation, ocular and internal HOAs as well as the visual quality data in the two groups were evaluated with KR-1W analyzer before and after mydriasis. Results Compared with normal axial length eyes, high-myopic pseudophakic eyes with posterior staphyloma had significantly lower values of internal coma both under 4-mm and 6-mm pupil sizes (Po0.001 and 0.020), as well as internal total HOAs (Po0.001) and third-order aberrations at 6-mm pupil size (P ¼ 0.018). Statistically significant differences were also found in the variation from 4-to 6-mm pupil sizes for internal coma (P ¼ 0.001), internal third-order aberrations (P ¼ 0.009), internal total HOAs (P ¼ 0.007), and ocular coma aberrations (P ¼ 0.006) between two groups. After mydriasis, Strehl ratio increased significantly in high-myopic eyes, whereas decreased slightly in normal axial length eyes (P ¼ 0.032 when compared with the variation between the two groups). Statistically significant differences were also found for the variation of modulation transfer functions (MTFs) at frequencies of 15, 30, 45, and 60 cycles/degree between the two groups (P ¼ 0.002, 0.002, 0.004, and 0.010, respectively).Conclusions High-myopic pseudophakic eyes with posterior staphyloma had significantly lower internal coma and less coma variations during mydriasis.

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Section: Figuresupporting

confidence: 73%

Section: Figurementioning

confidence: 99%

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Effect of pupil size on higher-order aberrations in high-myopic pseudophakic eyes with posterior staphyloma

Zhu

Yang

et al. 2014

Eye

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“…Our study also focused on the effect of IOL tilt and decentration because both play an important role in good visual performance after cataract surgery and IOL implantation. [18][19][20][21][22][23][24][25] …”

Section: Discussionmentioning

confidence: 99%

Visual simulation through different intraocular lenses in patients with previous myopic corneal ablation using adaptive optics: Effect of tilt and decentration

Madrid-Costa¹,

Pérez-Vives²,

Ruiz-Alcocer³

et al. 2012

Journal of Cataract and Refractive Surgery

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“…Although tilt has been shown in previous studies to be the least significant factor affecting higher-order aberrations, it has been shown to be associated with coma aberrations, a finding that is also suggested with our results. 7 Therefore, given the low theoretical levels of aberrations with the OOKP cylinder, we would not expect changes to the cylinder design itself to affect the results. Instead it is more likely that other factors such as tilt and inability to target refractive error would affect visual function given the complexity of the surgery.…”

Section: Discussionmentioning

confidence: 99%

Optical Functional Performance of the Osteo-Odonto-Keratoprosthesis

Lee

Ong

Lam

et al. 2014

Cornea

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Results: Optical analysis showed that the optical cylinder is near diffraction-limited. A reduction in median visual acuity (logMAR) with increasing glare settings was observed from 0.04 (without glare) to 0.20 (with glare at 'High' setting) and significantly reduced statistically when compared to the control group at all levels of glare (P < 0.05). Contrast sensitivity was significantly reduced when compared to age-matched controls at medium and high spatial frequencies (P < 0.05). Median Goldmann perimetry was 65 o (interquartile range 64 -74 o , V4e isopters) and 69 o excluding two glaucomatous subjects. Several vision-related VFQ-25 sub-scales correlated significantly with visual acuity at various BAT levels and contrast sensitivity at medium spatial frequencies, including Dependency, General Vision, Near and Distance Activities. Permanent repository link Conclusions:The OOKP optical cylinder provides patients with a good level of visual acuity that is significantly reduced by glare. We have shown in vivo that updates to the optical cylinder design have improved the patient's field of view. Reduction of glare and refinement of cylinder alignment methods may further improve visual function and patient satisfaction.4

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The Influence of Tilt, Decentration, and Pupil Size on the Higher-Order Aberration Profile of Aspheric Intraocular Lenses

Cited by 87 publications

References 51 publications

Effect of pupil size on higher-order aberrations in high-myopic pseudophakic eyes with posterior staphyloma

Effect of pupil size on higher-order aberrations in high-myopic pseudophakic eyes with posterior staphyloma

Visual simulation through different intraocular lenses in patients with previous myopic corneal ablation using adaptive optics: Effect of tilt and decentration

Optical Functional Performance of the Osteo-Odonto-Keratoprosthesis

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