The Impact on Vision of Aspheric to Spherical Monofocal Intraocular Lenses in Cataract Surgery

Schuster, Alexander K.; Tesarz, Jonas; Vossmerbaeumer, Urs

doi:10.1016/j.ophtha.2013.04.011

Cited by 72 publications

(55 citation statements)

References 62 publications

(86 reference statements)

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“…The improvement of contrast sensitivity with aspheric intraocular lenses was small but significant compared to that of a spherical IOL, which is in accordance with the literature (Schuster et al. ; Crnej et al. ).…”

Section: Discussionsupporting

confidence: 91%

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Index of contrast sensitivity (ICS) in pseudophakic eyes with different intraocular lens designs

Eppig

Filser

Goeppert

et al. 2014

Acta Ophthalmologica

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ABSTRACT.Purpose: To evaluate the index of contrast sensitivity (ICS) in eyes after cataract surgery with various intraocular lens designs and to compare with the area under log contrast sensitivity curve (AULCSF). Methods: The study comprised 395 eyes of 198 patients in the age of 73.1 AE 7.86 years receiving 11 different aspheric IOL designs (aberration-free and correcting) and a spherical (IOL) as control group. Follow-up examination after bilateral cataract surgery was completed within 71 AE 21.4 days after second IOL implantation. Patients underwent complete examination and biometry before surgery. The follow-up examination included visual acuity, pupil diameter, residual spherical aberration and mesopic as well as photopic contrast sensitivity (CS) measured with the Optec 6500 Functional Vision Analyzer. From the contrast sensitivity, we calculated the ICS according to Haughom and Strand. Results: The median mesopic ICS was À144, À131 and À85, and the median photopic ICS was À289, À285 and À212 for the spherical, aberration-free and aberration-correcting IOL group, respectively. While we could not detect a significant difference between the aberration groups in some spatial frequencies, the ICS showed a significant difference between the aberration-correcting and the aberration-free or the spherical group, respectively. No significant difference was found between the aberration-free and the spherical group. Conclusions: The ICS is a useful index for evaluation of overall CS and comparison of different patient groups. With aberration-correcting IOLs, ICS was statistically better than with aberration-free or spherical IOLs, whereas the latter two showed no significant difference.

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Section: Discussionsupporting

confidence: 91%

“…Schuster et al. () reported a high variability among the reported contrast sensitivity results of pseudophakic eyes. This is supported by our ICS data.…”

Section: Discussionmentioning

confidence: 99%

Index of contrast sensitivity (ICS) in pseudophakic eyes with different intraocular lens designs

Eppig

Filser

Goeppert

et al. 2014

Acta Ophthalmologica

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“…Visual acuity and quality outcomes after cataract surgery have improved greatly over the past few decades owing primarily to advances in intraocular lens (IOL) designs (1,2). While IOLs with spherical optics were traditionally used in cataract surgery, increased awareness about their contribution to post-operative degradation of visual quality led to the creation of aspheric IOLs (3)(4)(5).…”

Section: Introductionmentioning

confidence: 99%

Clinical outcomes of a new aspheric monofocal intraocular lens

Toygar¹

2018

Beyoglu Eye J

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This study aims to evaluate the clinical outcomes of a new aberration-free aspheric monofocal intraocular lens (IOL). Methods: This single-center retrospective study included eyes of cataract patients implanted with a new aberration-free aspheric IOL. Medical records of patients who were followed for 6 months were reviewed. Data on visual acuity (distance, intermediate, and near), refractive error (sphere, cylinder, and manifest spherical equivalent [MSE]), contrast sensitivity, and adverse events were collected and analyzed. Results: A total of 38 eyes of 30 patients with a mean age of 65.7±10.6 years were included in the study. At 6-month post-operative, 100% of the eyes had achieved a corrected distance visual acuity of 0.2 logMAR or better, 89% of the eyes had achieved a corrected intermediate visual acuity of 0.2 logMAR or better, and 89% of the eyes had achieved a corrected near visual acuity of J3 or better. Postoperatively, there was a significant reduction in the spherical (p<0.01) and cylindrical (p=0.01) refraction compared to baseline with a mean final MSE of-0.03±0.40 diopters. Post-operative low contrast (10%) visual acuity remained stable (p=0.54) through follow-up visits with a mean of 0.35±0.17 logMAR at the 6-month visit. There were no adverse events associated with the study IOL. Conclusion: The study IOL was safely implanted without any adverse events and improved visual acuity in cataract surgery patients while preserving visual quality over the 6-month follow-up period. Further studies with larger study groups and long-term follow-up are necessary to confirm these results.

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“…IOL is used after surgery to replace the natural lenses that were removed (10) . New materials and different IOL models have been developed and improved to promote better acuity and visual function without the need for glasses (11,12) .…”

Section: Introductionmentioning

confidence: 99%

Preoperative automatic visual behavioural analysis as a tool for intraocular lens choice in cataract surgery

Nogueira¹,

Alves²,

Schor³

2015

Arquivos Brasileiros De Oftalmologia

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Purpose: Cataract is the main cause of blindness, affecting 18 million people worldwide, with the highest incidence in the population above 50 years of age. Low visual acuity caused by cataract may have a negative impact on patient quality of life. The current treatment is surgery in order to replace the natural lens with an artificial intraocular lens (IOL), which can be mono-or multifocal. However, due to potential side effects, IOLs must be carefully chosen to ensure higher patient satisfaction. Thus, studies on the visual behavior of these patients may be an important tool to determine the best type of IOL implantation. This study proposed an anamnestic add-on for optimizing the choice of IOL. Methods: We used a camera that automatically takes pictures, documenting the patient's visual routine in order to obtain additional information about the fre quency of distant, intermediate, and near sights. Results:The results indicated an estimated frequency percentage, suggesting that visual analysis of routine photographic records of a patient with cataract may be useful for understanding behavioural gaze and for choosing visual management strategy after cataract surgery, simultaneously stimulating interest for customized IOL manufacturing according to individual needs.

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The Impact on Vision of Aspheric to Spherical Monofocal Intraocular Lenses in Cataract Surgery

Cited by 72 publications

References 62 publications

Index of contrast sensitivity (ICS) in pseudophakic eyes with different intraocular lens designs

Index of contrast sensitivity (ICS) in pseudophakic eyes with different intraocular lens designs

Clinical outcomes of a new aspheric monofocal intraocular lens

Preoperative automatic visual behavioural analysis as a tool for intraocular lens choice in cataract surgery

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