scholarly journals Clinical outcomes after mix-and-match implantation of diffractive multifocal intraocular lenses with +2.75 and +4.00 diopter add powers

2019 ◽  
Author(s):  
Jae Hyuck Lee ◽  
Hun Lee ◽  
Jin Ah Lee ◽  
Aeri Yoo ◽  
Jae Yong Kim ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Clinical Outcomes ◽  
Intraocular Lenses ◽  
Distance Visual Acuity ◽  
Multifocal Intraocular Lenses ◽  
Uncorrected Distance Visual Acuity ◽  
High Satisfaction ◽  
Manifest Refraction ◽  
Mix And Match

Abstract Background To evaluate the clinical outcomes of bilateral mix-and-match implantation of diffractive multifocal intraocular lenses (IOLs) with different add powers. Methods We retrospectively reviewed the medical records of 18 patients who underwent bilateral mix-and-match implantation of diffractive multifocal IOLs with different add powers. Multifocal IOLs with add powers of +2.75 diopters (D) and +4.00 D were implanted into the patients’ dominant and nondominant eyes, respectively. At 1 and 3-month postoperatively, monocular and binocular visual acuity was measured using logMAR charts and manifest refraction was performed. Specifically, logMAR charts were used to measure uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), and corrected distance visual acuity (CDVA). Defocus curves, contrast sensitivity, and patient satisfaction were assessed at 3-month postoperatively. Results Binocular logMAR measurements (mean ± standard deviation) at 3-month postoperatively were 0.01±0.04 (UDVA), 0.16±0.05 (UIVA), and 0.11±0.07 (UNVA). Postoperative spherical equivalent was -0.43±0.35 D and -0.39±0.21 D in the dominant and nondominant eyes, respectively. Defocus curves showed significant differences between -1.50 and -4.00 D among binocular, dominant, and nondominant eye measurements, except between -2.50 and -3.00 D. Eyes implanted with +2.75 and +4.00 D IOLs showed good contrast sensitivity under photopic and mesopic conditions. Over 80% of patients reported high satisfaction with their near vision. Conclusions Bilateral mix-and-match implantation of diffractive multifocal IOLs with add powers of +2.75 D and +4.00 D showed good near, intermediate, and far vision.

scholarly journals Clinical outcomes after mix-and-match implantation of diffractive multifocal intraocular lenses with +2.75 and +4.00 diopter add powers

2020 ◽  
Author(s):  
Jae Hyuck Lee ◽  
Hun Lee ◽  
Jin Ah Lee ◽  
Aeri Yoo ◽  
Jae Yong Kim ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Clinical Outcomes ◽  
Information Service ◽  
Intraocular Lenses ◽  
Research Information ◽  
Distance Visual Acuity ◽  
Multifocal Intraocular Lenses ◽  
Control And Prevention ◽  
Mix And Match

Abstract Background: To evaluate the clinical outcomes of bilateral mix-and-match implantation of diffractive multifocal intraocular lenses (IOLs) with different add powers.Methods: We retrospectively reviewed the medical records of 18 patients who underwent bilateral mix-and-match implantation of diffractive multifocal IOLs with different add powers. Multifocal IOLs with add powers of +2.75 diopters (D) and +4.00 D were implanted into the patients’ dominant and nondominant eyes, respectively. At 1 and 3-month postoperatively, monocular and binocular visual acuity was measured using logMAR charts and manifest refraction was performed. Specifically, logMAR charts were used to measure uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), and corrected distance visual acuity (CDVA). Defocus curves, contrast sensitivity, and patient satisfaction were assessed at 3-month postoperatively.Results: Binocular logMAR measurements (mean ± standard deviation) at 3-month postoperatively were 0.01±0.04 (UDVA), 0.16±0.05 (UIVA), and 0.11±0.07 (UNVA). Postoperative spherical equivalent was -0.43±0.35 D and -0.39±0.21 D in the dominant and nondominant eyes, respectively. Defocus curves showed significant differences between -1.50 and -4.00 D among binocular, dominant, and nondominant eye measurements, except between -2.50 and -3.00 D. Eyes implanted with +2.75 and +4.00 D IOLs showed good contrast sensitivity under photopic and mesopic conditions. Over 80% of patients reported high satisfaction with their near vision.Conclusions: Bilateral mix-and-match implantation of diffractive multifocal IOLs with add powers of +2.75 D and +4.00 D showed good near, intermediate, and far vision.Trial registration: Clinical Research Information Service[Internet]; Osong(Chungcheongbuk-do): Korea Centers for Disease Control and Prevention, Ministry of Health and Welfare (Republic of Korea), KCT0003945, Registered 20 May 2019 – Retrospectively registered, https://cris.nih.go.kr/cris/search/search_result_st01_kren.jsp?seq=13946&sLeft=2&ltype=my&rtype=my

Photopic and Mesopic Performance of 2 Different Trifocal Diffractive Intraocular Lenses

2016 ◽  
Vol 27 (1) ◽  
pp. 26-30 ◽  
Author(s):  
Jose M. Martinez-de-la-Casa ◽  
Jesús Carballo-Alvarez ◽  
Javier Garcia-Bella ◽  
Jose M. Vazquez-Molini ◽  
Laura Morales ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Visual Quality ◽  
Intraocular Lenses ◽  
High Contrast ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Study Test ◽  
Distance Correction

Purpose To assess photopic and mesopic vision in patients implanted with 2 different trifocal intraocular lenses (IOLs). Methods Fifty patients with cataract in both eyes had surgery with bilateral implantation of a trifocal FineVision (FV, n = 25) or AT LISA tri 839MP (LisaTri, n = 25) IOL. Three months after surgery, high-contrast photopic uncorrected distance visual acuity and corrected distance visual acuity (CDVA) were determined using the Early Treatment Diabetic Retinopathy Study test. Intermediate (65 cm) and near (40 cm) visual acuity were also measured, both with best distance correction (DCIVA and DCNVA, respectively). The CSV1000 test chart was used for binocular and monocular contrast sensitivity. Defocus curves were constructed under photopic and mesopic conditions. Results Mean patient age was 68.4 ± 5.5 years (FV) and 67.3 ± 5.6 years (LisaTri) (p = 0.540). No differences were found in terms of visual acuity between the groups. The CDVA, DCIVA, and DCNVA were 0.05 ± 0.06, 0.25 ± 0.10, and 0.13 ± 0.10 logMAR for FV and -0.04 ± 0.11, 0.32 ± 0.09, and 0.12 ± 0.11 logMAR for LisaTri, respectively (p = 0.09, p = 0.08, and p = 0.12). Photopic and mesopic defocus curves were comparable between the 2 IOL groups (p>0.05). Mesopic values were significantly worse than photopic in both groups for all the measured values (p<0.001). No differences in contrast sensitivity were observed between the 2 IOL groups (p>0.05). Conclusions Both trifocal diffractive IOLs provided good visual quality with a statistically significant decrease in mesopic conditions.

scholarly journals Three-year Clinical Outcomes of Aspheric Micro-monovision LASIK for Correction of Presbyopia and Myopic Astigmatism

2020 ◽  
Author(s):  
Fang Liu ◽  
Ting Zhang ◽  
Quan Liu
Keyword(s):  
Visual Acuity ◽  
Spherical Equivalent ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
High Satisfaction ◽  
Manifest Refraction ◽  
Corrected Distance Visual Acuity ◽  
Uncorrected Visual Acuity ◽  
Registration Number ◽  
Myopic Astigmatism

Abstract Background: To investigate the long-term safety and efficacy of aspheric micro-monovision LASIK for the correction of presbyopia and myopic astigmatism. Methods: In total, 114 eyes of 57 patients with a mean age of 48 ± 4.05 years (range: 43 to 62 years) who were undergoing aspheric micro-monovision LASIK treatment were enrolled. Visual acuity, manifest refraction, amplitude of accommodation, contrast sensitivity, entire eye aberrations and patients’ subjective ratings were evaluated from 1 day to 3 years postoperatively. Results: None of the eyes showed a spherical equivalent change of over 0.75 D between 3 months and 3 years, while 95% of the eyes were within ±0.50 D of the target correction of the spherical equivalent. The percentage of patients showing monocular uncorrected distance visual acuity ≥20/20 was 95%, and all eyes achieved a visual acuity of 20/25 or better. The percentage of patients showing binocular uncorrected near visual acuity ≥J2 was 93%, and all patients achieved a visual acuity of J4 or better. Ninety-one percent of the patients had an uncorrected visual acuity of 20/20 in both eyes and J2 or better binocular visual acuity. Six of 108 eyes (6%) lost 1 line, and no eyes lost 2 lines of corrected distance visual acuity. The overall satisfaction score for surgery was 93 ± 6. Conclusions: Aspheric micro-monovision LASIK using the Carl Zeiss Meditec MEL 80 Platform was an efficacious option for older myopic patients with presbyopia. Three-year postoperative outcomes in the Chinese population indicated improvements in uncorrected binocular vision at far and near distances with high satisfaction. Trial registration: The registration number is ChiCTR-IPC-15005842, and the date of registration is January 16, 2015.

scholarly journals 3 Years Clinical Outcomes of Aspheric Micro-monovision LASIK for Correction of Presbyopia and Myopic Astigmatism

2019 ◽  
Author(s):  
Fang Liu ◽  
Ting Zhang ◽  
Quan Liu
Keyword(s):  
Visual Acuity ◽  
Subjective Rating ◽  
Spherical Equivalent ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
High Satisfaction ◽  
Manifest Refraction ◽  
Corrected Distance Visual Acuity ◽  
Near Visual Acuity

Abstract Background: To investigate long term safety and efficacy of aspheric micro-monovision LASIK for correction of presbyopia and myop ic astigmatism. Methods: One hundred and fourteen eyes of 57 patients with a mean age 48 ± 4.05 years (range: 43 to 62 years) undergoing aspheric micro-monovision LASIK treatment using the MEL 80 excimer laser (Carl Zeiss Meditec AG, Jena, Germany) were enrolled. Visual acuity, manifest refraction, amplitude of accommodation and patients’ subjective rating was evaluated from 1 day to 3 years postoperatively. Results: There were no eyes in which spherical equivalent changed by over 0.75D between 1 day and 3 years. Ninety five percent of eyes were within ±0.50 D of target correction of spherical equivalent. The percentage of monocular uncorrected distance visual acuity ≧20/20 was 95%,and all eyes achieved 20/25 or better. The percentage of binocular uncorrected near visual acuity ≧J2 was 93%,and all patients achieved J4 or better. Ninety one percent of the patients could see uncorrected both 20/20 and J2 or better binocularly. Six percent (6/108) eyes lost 1 line and no eyes lost 2 lines of corrected distance visual acuity. The overall satisfaction score for surgery was 93±6. Conclusions: The aspheric micro-monovision LASIK using the Carl Zeiss Meditec MEL 80 Platform was an efficacious option for older myopia patients with presbyopia. Three years postoperative outcomes in Chinese population indicated improvements in uncorrected binocular vision at far and near distances with high satisfaction.

Efficacy of progressive thickness intrastromal corneal ring segments in the treatment of duck phenotype keratoconus

2021 ◽  
pp. 112067212110017
Author(s):  
Juan G Arbelaez ◽  
Maria C Arbelaez
Keyword(s):  
Visual Acuity ◽  
Clinical Outcomes ◽  
Effective Means ◽  
Study Cohort ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
Intrastromal Corneal Ring ◽  
Manifest Refraction ◽  
Corrected Distance Visual Acuity ◽  
Belo Horizonte

Purpose:To evaluate clinical outcomes in patients with asymmetric duck phenotype keratoconus implanted with asymmetric progressive thickness intrastromal corneal ring segments (PT-ICRS, Keraring AS, Mediphacos, Belo Horizonte, Brazil), and to demonstrate improved visual acuity and symmetry in corneal flattening.Methods:This single-center, retrospective, observational study evaluated the clinical outcomes at 1, 3, and 6 months after implantation of PT-ICRS in patients with duck phenotype keratoconus. After creating the intrastromal tunnel with a femtosecond laser, one 160-degree arc length PT-ICRS, either 150/250 µm or 200/300 µm, was implanted. Changes in uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction (MR), manifest refraction spherical equivalent (MRSE), mean keratometry (Kmean), maximum keratometry (Kmax), Coma@5mm, and manifest and topographical astigmatism were documented.Results:The study cohort included 23 eyes of 17 patients with a mean age of 24.6 years. From baseline to 6 months following implantation, mean UDVA improved from 0.70 logarithm of the minimum angle of resolution (logMAR) (20/100 Snellen) to 0.22 logMAR (20/33 Snellen), CDVA improved from 0.33 logMAR (20/42 Snellen) to 0.14 logMAR (20/27 Snellen), the mean sphere and MRSE decreased from −1.05 diopters (D) and −2.70 D to −0.25 D and −0.80 D, respectively, and the Kmean and Kmax improved from 46.5 D and 53.7 D to 44.6 D and 48.7 D, respectively.Conclusions:The Keraring AS ICRS offers a safe, effective means of improving visual acuity while reducing refractive error, mean and max keratometry, and aberrations in patients with duck phenotype keratoconus.

scholarly journals Comparison of Clinical Outcomes, Visual Quality and Visual Function of Two Presbyopia-Correcting Intraocular Lenses Made from the Same Material, but with Different Design and Optics

2021 ◽  
Vol 10 (15) ◽  
pp. 3268
Author(s):  
Ladislav Viktor Nováček ◽  
Marie Němcová ◽  
Kateřina Tyx ◽  
Kristýna Lahodová ◽  
Leoš Rejmont ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Clinical Outcomes ◽  
Visual Function ◽  
Comparative Investigation ◽  
Optical Quality ◽  
Intraocular Lenses ◽  
Refractive Outcomes ◽  
Uncorrected Distance Visual Acuity ◽  
Near Visual Acuity

This semi-prospective, parallel, comparative investigation evaluated the clinical outcomes and quality of vision (contrast sensitivity, visual function, dysphotopsia, spectacle use, overall satisfaction) after mono- or bilateral implantation of two presbyopia-correcting intraocular lenses (IOL)—the Liberty® 677MY or the AT LISA® tri 839M—in 50 eyes of 25 cataract patients. Clinical outcomes were assessed 3 and 12 months postoperatively. Eighty-nine percent of eyes implanted with the Liberty IOL and 59% of eyes implanted with the AT LISA IOL achieved a refractive outcome ±0.5 diopters of the target (emmetropia). Refractive outcomes were stable with both lenses. The proportions of eyes with 20/20 uncorrected distance visual acuity (UDVA) and 20/20 uncorrected near visual acuity (UNVA) were higher in the Liberty group than in the AT LISA group (UDVA: 56% vs. 41%; UNVA: 83% vs. 66%). Optical quality assessment results were comparable for the two IOLs. Superior photopic contrast sensitivity was found with the Liberty lens. The rate of Nd:YAG capsulotomy at the 12-month follow-up was 16.7% in the Liberty group and 40.6% for the AT LISA IOL. Considering that both lenses are made from the same material, we propose that the noted differences in clinical outcomes may derive from differences in design and optical surface between the two IOLs.

scholarly journals Evaluation of Different Power of Near Addition in Two Different Multifocal Intraocular Lenses

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Ugur Unsal ◽  
Gonen Baser
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Intraocular Lenses ◽  
Near Vision ◽  
Distance Visual Acuity ◽  
Multifocal Intraocular Lenses ◽  
Uncorrected Distance Visual Acuity ◽  
Quality Of Vision ◽  
Corrected Distance Visual Acuity ◽  
Near Visual Acuity

Purpose.To compare near, intermediate, and distance vision and quality of vision, when refractive rotational multifocal intraocular lenses with 3.0 diopters or diffractive multifocal intraocular lenses with 2.5 diopters near addition are implanted.Methods.41 eyes of 41 patients in whom rotational +3.0 diopters near addition IOLs were implanted and 30 eyes of 30 patients in whom diffractive +2.5 diopters near addition IOLs were implanted after cataract surgery were reviewed. Uncorrected and corrected distance visual acuity, intermediate visual acuity, near visual acuity, and patient satisfaction were evaluated 6 months later.Results. The corrected and uncorrected distance visual acuity were the same between both groups (p=0.50andp=0.509, resp.). The uncorrected intermediate and corrected intermediate and near vision acuities were better in the +2.5 near vision added intraocular lens implanted group (p=0.049,p=0.005, andp=0.001, resp.) and the uncorrected near vision acuity was better in the +3.0 near vision added intraocular lens implanted group (p=0.001). The patient satisfactions of both groups were similar.Conclusion. The +2.5 diopters near addition could be a better choice in younger patients with more distance and intermediate visual requirements (driving, outdoor activities), whereas the + 3.0 diopters should be considered for patients with more near vision correction (reading).

scholarly journals Long-term Stability of Ectasia in a Young Patient with Asymmetric Keratoconus

2015 ◽  
Vol 4 (2) ◽  
pp. 66-68
Author(s):  
Rosane de Oliveira Corrêa ◽  
Ana Laura Caiado Canedo ◽  
Rozalia Beildeck ◽  
Marcella Quaresma Salomão ◽  
Penelope Burle de Politis
Keyword(s):  
Visual Acuity ◽  
Young Patient ◽  
Distance Visual Acuity ◽  
Long Term Stability ◽  
Uncorrected Distance Visual Acuity ◽  
Manifest Refraction ◽  
Corrected Distance Visual Acuity ◽  
Ring Segment ◽  
Intracorneal Ring Segment ◽  
The Right

ABSTRACT Purpose To report the clinical course of a typical young patient presenting with asymmetric keratoconus (KC), that demonstrates that stabilization of the ectatic process is possible without cross-linking (CXL) procedure. Methods Case report and review of the literature. Results A 17-year-old male patient was referred due to the diagnosis of keratoconus. Patient complained of loss of vision in the left eye (OS). Uncorrected distance visual acuity (UDVA) was 20/25+ in the right eye (OD) and 20/80 in the left eye; wavefront-assisted manifest refraction gave best corrected distance visual acuity (CDVA) of 20/20 in OD and 20/40 in OS. The diagnosis of keratoconus was confirmed with Placido disk-based topography (Oculus Keratograph 4), and Pentacam HR corneal tomography (Oculus Optikgeräte GmbH, Wetzlar, Germany). Femtosecond laser-assisted intracorneal ring segment (ICRS) implantation was performed in the left eye and treatment for allergy was prescribed for both eyes, along with patient education and advice not to rub the eyes. After 3 months, significant improvement was observed on UDVA (20/30) and CDVA (20/20) in the left eye. Topometric and tomographic stability of ectasia was observed in the right eye in a 4-year follow-up. Conclusion Intracorneal ring segment caused significant regularization of the corneal shape and improvement on visual acuity. Ectasia stability was achieved with no need for CXL, despite the patient's young age. This case raises the point that the indication of CXL for every keratoconic patient should be reconsidered. How to cite this article de Oliveira Corrêa R, Canedo ALC, Beildeck R, Salomão MQ, de Politis PB, Ambrósio R Jr. Longterm Stability of Ectasia in a Young Patient with Asymmetric Keratoconus. Int J Kerat Ect Cor Dis 2015;4(2):66-68.

scholarly journals Visual performance in a flight simulator: multifocal intraocular lenses in pilots

2018 ◽  
Vol 3 (1) ◽  
pp. e000139
Author(s):  
Lee Lenton
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Luminance Contrast ◽  
Intraocular Lenses ◽  
Visual Performance ◽  
Flight Simulator ◽  
Night Time ◽  
Multifocal Intraocular Lenses ◽  
Low Luminance ◽  
Visual Tasks

ObjectiveTo compare the performance of adults with multifocal intraocular lenses (MIOLs) in a realistic flight simulator with age-matched adults with monofocal intraocular lenses (IOLs).Methods and AnalysisTwenty-five adults ≥60 years with either bilateral MIOL or bilateral IOL implantation were enrolled. Visual function tests included visual acuity and contrast sensitivity under photopic and mesopic conditions, defocus curves and low luminance contrast sensitivity tests in the presence and absence of glare (Mesotest II), as well as halo size measurement using an app-based halometer (Aston halometer). Flight simulator performance was assessed in a fixed-based flight simulator (PS4.5). Subjects completed three simulated landing runs in both daytime and night-time conditions in a randomised order, including a series of visual tasks critical for safety.ResultsOf the 25 age-matched enrolled subjects, 13 had bilateral MIOLs and 12 had bilateral IOLs. Photopic and mesopic visual acuity or contrast sensitivity were not significantly different between the groups. Larger halo areas were seen in the MIOL group and Mesotest values were significantly worse in the MIOL group, both with and without glare. The defocus curves showed better uncorrected visual acuity at intermediate and near distances for the MIOL group. There were no significant differences regarding performance of the vision-related flight simulator tasks between both groups.ConclusionsThe performance of visually related flight simulator tasks was not significantly impaired in older adults with MIOLs compared with age-matched adults with monofocal IOLs. These findings suggest that MIOLs do not impair visual performance in a flight simulator.

Comparison of Visual Outcomes after Bilateral Implantation of Extended Range of Vision and Trifocal Intraocular Lenses

2017 ◽  
Vol 27 (4) ◽  
pp. 460-465 ◽  
Author(s):  
Ramón Ruiz-Mesa ◽  
Antonio Abengózar-Vela ◽  
Ana Aramburu ◽  
María Ruiz-Santos
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Intraocular Lenses ◽  
Patient Questionnaire ◽  
Visual Outcomes ◽  
Uncorrected Distance Visual Acuity ◽  
Extended Range ◽  
Near Visual Acuity ◽  
Group 2 ◽  
Group 1

Purpose To compare visual outcomes after cataract surgery with bilateral implantation of 2 intraocular lenses (IOLs): extended range of vision and trifocal. Methods Each group of this prospective study comprised 40 eyes (20 patients). Phacoemulsification followed by bilateral implantation of a FineVision IOL (group 1) or a Symfony IOL (group 2) was performed. The following outcomes were assessed up to 1 year postoperatively: binocular uncorrected distance visual acuity (UDVA), binocular uncorrected intermediate visual acuity (UIVA) at 60 cm, binocular uncorrected near visual acuity (UNVA) at 40 cm, spherical equivalent (SE) refraction, defocus curves, mesopic and photopic contrast sensitivity, halometry, posterior capsule opacification (PCO), and responses to a patient questionnaire. Results The mean binocular values in group 1 and group 2, respectively, were SE -0.15 ± 0.25 D and -0.19 ± 0.18 D; UDVA 0.01 ± 0.03 logMAR and 0.01 ± 0.02 logMAR; UIVA 0.11 ± 0.08 logMAR and 0.09 ± 0.08 logMAR; UNVA 0.06 ± 0.07 logMAR and 0.17 ± 0.06 logMAR. Difference in UNVA between IOLs (p<0.05) was statistically significant. There were no significant differences in contrast sensitivity, halometry, or PCO between groups. Defocus curves were similar between groups from 0 D to -2 D, but showed significant differences from -2.50 D to -4.00 D (p<0.05). Conclusions Both IOLs provided excellent distance and intermediate visual outcomes. The FineVision IOL showed better near visual acuity. Predictability of the refractive results and optical performance were excellent; all patients achieved spectacle independence. The 2 IOLs gave similar and good contrast sensitivity in photopic and mesopic conditions and low perception of halos by patients.

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