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).

A comparative study of the visual outcomes between a new trifocal and an extended depth of focus intraocular lens

2017 ◽  
Vol 28 (2) ◽  
pp. 182-187 ◽  
Author(s):  
Ramón Ruiz-Mesa ◽  
Antonio Abengózar-Vela ◽  
María Ruiz-Santos
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Intraocular Lens ◽  
Distance Visual Acuity ◽  
Visual Outcomes ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Near Visual Acuity ◽  
Reading Distance ◽  
Continuous Range

Purpose: To evaluate and compare the visual outcomes and ocular optical performance of the PanOptix trifocal intraocular lens (IOL) and Symfony extended range of vision IOL. Methods: Sixty-eight eyes of 34 patients were divided into 2 groups: 20 patients with the PanOptix IOL and 14 patients with the Symfony IOL. Binocular uncorrected distance visual acuity, best-corrected distance visual acuity (BCDVA), distance-corrected intermediate visual acuity (DCIVA) at 80 and 60 cm, and distance-corrected near visual acuity (DCNVA) at 40 cm were evaluated. Additionally, preferred reading distance with best-corrected distance and visual acuity at that distance, binocular defocus curves, mesopic and photopic contrast sensitivity, photic phenomena, and monocular total higher order aberrations (HOAs) were also measured. Results: The visual outcomes for PanOptix and Symfony IOL groups, respectively, were as follows: BCDVA: -0.03 ± 0.03 and -0.02 ± 0.03 logMAR; DCIVA at 80 cm: 0.06 ± 0.06 and 0.06 ± 0.04 logMAR; DCIVA at 60 cm: 0.06 ± 0.10 and 0.05 ± 0.04 logMAR; DCNVA: 0.04 ± 0.06 and 0.20 ± 0.07 logMAR (p<0.001). Similar preferred reading distances were found for both groups (37.0 ± 4.6 and 38.9 ± 5.7 cm, respectively). The visual acuities at those distances were 0.09 ± 0.08 and 0.19 ± 0.08 logMAR (p<0.001), respectively. The defocus curves showed significantly better outcomes for the PanOptix IOL from -2.0 to -4.0 D (p<0.001). No significant differences were found for contrast sensitivity, halometry, or HOAs between the groups. Conclusions: The PanOptix and Symfony IOLs showed comparable visual performance at distance and intermediate. However, the PanOptix IOL provided better near and preferred reading distance VAs and showed a more continuous range of vision than the Symfony IOL.

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 Toric phakic IOLs in keratoconus—evaluation of preoperative parameters on the outcome of phakic anterior chamber lens implantation in patients with keratoconus

2021 ◽  
Author(s):  
Isaak R. Fischinger ◽  
Jascha Wendelstein ◽  
Kristin Tetz ◽  
Matthias Bolz ◽  
Manfred R. Tetz
Keyword(s):  
Visual Acuity ◽  
Anterior Chamber ◽  
Intraocular Lenses ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
Significant Difference ◽  
Corrected Distance Visual Acuity ◽  
Lens Implantation ◽  
Efficacy Index ◽  
The Mean

Abstract Purpose To evaluate the influence of the type of the keratectasia and preoperative keratometry readings on the efficacy of implantation of iris-fixated phakic anterior chamber intraocular lenses (pIOL) in patients with keratoconus. Methods In this retrospective study, iris-fixated pIOLs (Artisan/Artiflex (Ophtec®), Verisyse/Veriflex (AMO®)) were implanted in 38 eyes of 22 patients with stable keratoconus. Thirty-six eyes underwent corneal crosslinking (CXL) prior to the lens implantation. The refractive outcome was evaluated 6 weeks postoperatively and the influence of preoperative refraction and topo- and tomographical factors were analyzed. Results The mean postoperative uncorrected distance visual acuity (UDVApost) was 0.25 ± 0.15 logMAR and was not statistically different from the mean preoperative corrected distance visual acuity (CDVApre), which was 0.24 ± 0.13 logMAR. Twenty-seven eyes (71%) reached UDVApost/CDVApre ≥ 1 (efficacy index), whereas patients with PMD-like ectasia (n = 14) showed significantly (p = 0.003) higher efficacy index (100%) than patients diagnosed with keratoconus (n = 24) (54%). Higher eccentricity of the maximum posterior elevation showed a significant beneficial influence on the efficacy index (p = 0.021). Furthermore, a higher Amsler-Krumeich stage and preoperative MAE were correlated with a worse UDVApost. The mean absolute spherical equivalent was significantly decreased from 5.71 ± 4.96 D to 1.25 ± 1.20 D (p < 0.001). No significant difference was found in endothelial cell count. Conclusion The results indicate that the implantation of phakic iris-fixated anterior chamber IOLs is a reasonable refractive option for patients with keratoconus. Keratoconus patients with a pellucidal marginal degeneration (PMD)-like appearance ectasia seem to benefit most from such procedures.

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.

scholarly journals Comparison of Visual Performance between Refractive and Diffractive Multifocal Intraocular Lenses

2019 ◽  
Author(s):  
Lingying Ye ◽  
Tianyu Chen ◽  
Zhixiang Hu ◽  
Qiudong Su ◽  
Jin Li
Keyword(s):  
Visual Acuity ◽  
Life Quality ◽  
Optical Quality ◽  
Intraocular Lenses ◽  
Visual Performance ◽  
Distance Visual Acuity ◽  
Multifocal Intraocular Lenses ◽  
Good Visual Acuity ◽  
Significant Difference ◽  
Near Visual Acuity

Abstract AIM To compare the visual performance of asymmetric refractive multifocal intraocular lenses (MIOLs) with all optic zone diffractive MIOLs.METHODS A prospective study. Patients underwent phacoemulsification were divided into two groups according to the type of MIOLs: 25 patients were implanted with asymmetric refractive MIOLs and 25 patients with all optic zone diffractive MIOLs. Visual acuity, refraction, defocus curves, objective optical quality and the questionnaire of life quality were measured 3 months after surgery.RESULTS There was no significant difference between two groups in uncorrected distance visual acuity、uncorrected near visual acuity、best corrected distance visual acuity or distance corrected near visual acuity. However, the uncorrected intermediate visual acuity was 0.24±0.10 in refractive group and 0.31±0.13 in diffractive group (P<0.05); the distance corrected intermediate visual acuity was 0.22±0.09 in refractive group and 0.31±0.14 in diffractive group (P<0.05). Defocus curves showed two crests in both groups. However, the curve between two crests of refractive group was smoother than diffractive group. The Modulated transfer function cut-off frequency was (22.74±12.29)c/d in refractive group and(30.50±10.04)c/d in diffractive group (P<0.05); the OQAS values 100% (OV100%) were 0.75±0.41 in refractive group and 1.02±0.34 in diffractive group(P<0.05),OV20% were 0.52±0.34 in refractive group and 0.71±0.25 in diffractive group (P<0.05).There was no significant difference between two groups at overall satisfaction, independence spectacles ratio or visual interference phenomenon.CONCLUSIONS Both MIOLs achieve good visual acuity at distance and near. The asymmetric refractive MIOLs show better intermediate visual acuity, and the all optic zone diffractive MIOLs appear to have better objective visual quality.

scholarly journals One Year Outcome and Satisfaction of Presbyopia Correction Using the PresbyMAX® Monocular Ablation Profile

2020 ◽  
Vol 7 ◽  
Author(s):  
Dan Fu ◽  
Jing Zhao ◽  
Li Zeng ◽  
Xingtao Zhou
Keyword(s):  
Visual Acuity ◽  
Final Visit ◽  
Great Satisfaction ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Dominant Eye ◽  
Ablation Profile ◽  
Near Visual Acuity ◽  
One Year

Purpose: To explore the safety, efficacy, and satisfaction of the PresbyMAX monocular mode for the correction of presbyopia.Methods: Prospective study. Twenty-two patients (mean age 50.6 ± 6.2 years, 11 myopia patients and 11 hyperopia patients) were enrolled. The dominant eye was fully corrected for distance vision; the non-dominant eye was corrected using central PresbyMAX monocular mode. Binocular uncorrected distance visual acuity (BUDVA), near visual acuity (BUNVA), intermediate visual acuity (BUIVA), corrected distance visual acuity (CDVA), and mean spherical equivalent (SE) were tested at 1 day, 1 week, 1 month, 3 months, and 1 year postoperatively. Questionnaire was performed preoperatively, 1 month, 3 months, and 1 year after surgery.Results: At the final visit, the mean safety index was 1.03 ± 0.14. There were 85.7% eyes with the same or better CDVA than the preoperative value, and 17.1% and 2.9% eyes gained 1 line and 2 lines of CDVA, respectively. All treated eyes achieved 20/25 or better BUDVA, and 95.5% achieved 20/32 or better BUNVA, which improved significantly compared with preoperative values (P &lt; 0.001). BUDVA maintained stability from 1 month postoperatively, BUNVA and BUIVA kept stable since 1 week after surgery. Overall satisfaction was 95.5% (21/22) at 3 months visit, and 100% at the last visit. No differences in terms of visual acuity and satisfaction were found between the myopia and hyperopia groups.Conclusion: The PresbyMAX monocular ablation profile was safe and effective in treating presbyopia, with great satisfaction achieved at postoperative 1 year.

scholarly journals Secondary multifocal intraocular lens implantation: A novel management strategy for white cataracts

2018 ◽  
Vol 6 ◽  
pp. 2050313X1775033
Author(s):  
Jiawen Ling ◽  
Yiyong Qian ◽  
Peirong Lu
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Management Strategy ◽  
Intraocular Lenses ◽  
Intraocular Lens Implantation ◽  
Multifocal Intraocular Lens ◽  
Multifocal Intraocular Lenses ◽  
Lens Implantation ◽  
Near Visual Acuity ◽  
Cataract Patients

Objectives: This study was designed to analyse the outcomes of secondary multifocal intraocular lens implantation in eyes with white cataracts. Methods: White cataract patients undergoing secondary multifocal intraocular lens implantation between June 2014 and January 2015 were evaluated prospectively. As opposed to a conventional primary intraocular lens implantation for an optimal patient, the white cataract was first extracted, followed by optical biometry measurements. Whether or not the patient had adequate visual acuity was identified, and the multifocal intraocular lens was implanted secondarily. A total of five appropriate white cataract patients were enrolled in this secondary multifocal intraocular lens implantation study and were retrospectively reviewed. Results: All five secondary implantations of the multifocal intraocular lenses were successful, without obvious adverse events. The uncorrected near visual acuity LogMAR was 0.4–0.5, and the distance visual acuity was −0.1 to 0.1 after 12 months of the multifocal intraocular lens implantation. All patients achieved satisfactory near and distance visual acuities and spectacle freedom. Conclusion: Two-stage multifocal intraocular lens implantation is a safe and novel technique for the management of white cataract patients to optimise near and distance visual acuities.

scholarly journals Small incision lenticule extraction (SMILE) monovision for presbyopia correction

2017 ◽  
Vol 28 (3) ◽  
pp. 287-293 ◽  
Author(s):  
Nikolaus Luft ◽  
Jakob Siedlecki ◽  
Walter Sekundo ◽  
Christian Wertheimer ◽  
Thomas C. Kreutzer ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Small Incision Lenticule Extraction ◽  
Distance Visual Acuity ◽  
Small Incision ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Effective Option ◽  
Near Visual Acuity ◽  
Lenticule Extraction ◽  
Target Refraction

Purpose: To evaluate the outcomes of myopic small incision lenticule extraction (SMILE) monovision in presbyopic patients. Methods: This study included 49 presbyopic patients older than 45 years seeking surgical correction of myopia or myopic astigmatism who underwent bilateral SMILE with planned monovision in the SMILE Eyes Clinic Linz, Austria. Target refraction was plano for dominant (distance) eyes and ranged between -1.25 and -0.50 D for nondominant (near) eyes. Best-corrected distance visual acuity, uncorrected distance visual acuity (UDVA), uncorrected near visual acuity, as well as spectacle dependence were assessed after a mean postoperative period of 7.2 ± 4.8 months. Results: Mean age was 49 ± 3 years and female to male ratio was 30:19. Distance eyes achieved a spherical equivalent correction of ±0.50 D from target refraction in 80% of patients and 96% were within ±1.0 D. Binocular UDVA of 20/20 or better was achieved by 90% of patients and all patients achieved 20/25 or better. The proportion of patients with a binocular UDVA of 20/20 or better who could read J2 or better amounted to 84%. Complete spectacle independence was achieved by 84% of patients and independence from reading glasses was achieved in 92% of cases. No patient requested refractive enhancement or monovision reversal. Conclusions: This first evaluation of SMILE monovision endorses the approach as a safe and effective option for the correction of presbyopia in myopic patients seeking refractive surgery.

Comparative evaluation of visual outcomes after bilateral implantation of an advanced or conventional monofocal intraocular lens

2021 ◽  
pp. 112067212199534
Author(s):  
Diogo Lopes ◽  
Tomás Loureiro ◽  
Rita Carreira ◽  
Sandra Rodrigues Barros ◽  
João Nobre Cardoso ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Life Quality ◽  
Mean Value ◽  
Control Group ◽  
Retrospective Case ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Intermediate Distance

Purpose: To assess the clinical outcomes and patient satisfaction of the Tecnis Eyhance, an advanced monofocal intraocular lens (IOL), compared to a conventional monofocal IOL. Design: Retrospective case-control study. Methods: This study included 120 eyes of 60 patients (30 patients in each group) who underwent bilateral cataract surgery either with the implantation of conventional monofocal IOLs (Tecnis PCB00), as a control group, or advanced monofocal IOLs (Tecnis Eyhance ICB00). Ophthalmological evaluation included the measurement of binocular corrected distance visual acuity (CDVA), monocular and binocular uncorrected distance visual acuity (UDVA), and uncorrected intermediate VA (UIVA). In addition the binocular defocus curve was analyzed. Furthermore a subjective questionnaire (Catquest-9SF) was used to assess vision and life quality. Results: The average binocular UDVA was 20/22 in the ICB00 group and 20/20 in the PCB00 model ( p = 0.62). The average monocular UIVA was 20/32 in the ICB00 group and 20/40 in the control group ( p < 0.001). We found the binocular UIVA, had a mean value of 20/30 in the ICB00, compared to 20/40 in the control group ( p < 0.001). The reported dysphotopsia was not significantly different between both groups ( p = 0.56). Regarding the life quality questionnaire, the ICB00 group showed less difficulty in activities requiring intermediate vision. Conclusion: Our results demonstrated a significant improvement in visual acuity for intermediate distance in the ICB00 group compared to the control group, without compromising distance visual acuity. We also found a greater capability for intermediate distance activities (namely for computer use and reading price tags) when comparing ICB00 patients with the control group.

scholarly journals Comparison of Visual Performance between Refractive and Diffractive Multifocal Intraocular Lenses

2020 ◽  
Author(s):  
Lingying Ye ◽  
Tianyu Chen ◽  
Zhixiang Hu ◽  
Qiuwen Yang ◽  
Qiudong Su ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Optical Quality ◽  
Intraocular Lenses ◽  
Visual Performance ◽  
Interference Phenomenon ◽  
Distance Visual Acuity ◽  
Multifocal Intraocular Lenses ◽  
Significant Difference ◽  
Near Visual Acuity ◽  
Two Peaks

Abstract BACKGROUND: To compare the visual performance of asymmetric refractive multifocal intraocular lenses (MIOLs) with all optic zone diffractive MIOLs. METHODS: A prospective study. Patients underwent phacoemulsification were divided into two groups according to the type of MIOLs: 25 patients were implanted with asymmetric refractive MIOLs and 25 patients with all optic zone diffractive MIOLs. Visual acuity, refraction, defocus curves, objective optical quality and the questionnaire of life quality were measured 3 months after surgery. RESULTS: There was no significant difference between two groups in uncorrected distance visual acuity、uncorrected near visual acuity、best corrected distance visual acuity or distance corrected near visual acuity. However, the uncorrected intermediate visual acuity was 0.24±0.10 in refractive group and 0.31±0.13 in diffractive group (P<0.05); the distance corrected intermediate visual acuity was 0.22±0.09 in refractive group and 0.31±0.14 in diffractive group (P<0.05). Defocus curves showed two peaks of maximum vision in both groups. However, the curve between two peaks of refractive group was smoother than diffractive group. The Modulated transfer function cut-off frequency was （22.74±12.29）c/d in refractive group and（30.50±10.04）c/d in diffractive group (P<0.05); the OQAS values 100% (OV100%) were 0.75±0.41 in refractive group and 1.02±0.34 in diffractive group（P<0.05），OV20% were 0.52±0.34 in refractive group and 0.71±0.25 in diffractive group （P<0.05）.There was no significant difference between two groups at overall satisfaction, independence spectacles ratio or visual interference phenomenon. CONCLUSIONS: Both MIOLs achieve good visual acuity at distance and near. The asymmetric refractive MIOLs show better intermediate visual acuity, and the all optic zone diffractive MIOLs appear to have better objective visual quality.

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