Performance einer neuen 7-mm-Intraokularlinse mit Nachbeobachtung über 1,5 Jahre

Schrecker, Jens; Seitz, Berthold; Langenbucher, Achim

doi:10.1007/s00347-021-01504-3

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…In non-toric IOLs is also important to assess the rotational stability in order to study how the physical shape and haptic design (friction between the haptic and the capsular bag) are important factors that may affect its stability. Schrecker et al 22 analyzed the same lens with a large follow-up period (1.5 years) on a sample of 55 eyes, finding that the lens was stable over the postoperative course as decentration was <0.02 mm and tilt <5.5°, with a median rotation of 1.8° within the first postoperative week, which was not significantly different from the rotation between surgery and at 1.5 years (median 1.4°). They concluded that the lens shows good position stability in the capsular bag, thus highlighting the advantages of a 7.0 mm optic in the diagnostics and treatment of peripheral retinal pathologies.…”

Section: Dovepressmentioning

confidence: 99%

Clinical Performance of a New Trifocal IOL with a 7.0 mm Optical Zone

Pastor-Pascual,

Orts-Vila,

Tañá-Sanz

et al. 2023

OPTH

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To evaluate the refractive and visual outcomes following cataract surgery and implantation of a diffractive trifocal intraocular lens (IOL) with a 7.0 mm optical zone. Methods: A total of 23 patients who underwent bilateral implantation with the Triva-aXAY IOL were analyzed at 6 months postsurgery. The main outcome measures were refractive error, monocular and binocular uncorrected and corrected-distance visual acuity (UDVA, CDVA), uncorrected and corrected-distance intermediate visual acuity (UIVA, CDIVA) at 60 cm, uncorrected and correcteddistance near visual acuity (UNVA, CDNVA) at 40 cm, and binocular defocus curve. Patients also completed the Catquest-9SF questionnaire.Results: All eyes were within ±1.00D, and 91.30% of eyes within ±0.50D, with a mean postoperative spherical equivalent of -0.14 ±0.29D. Similarly, 95.65% of patients showed a binocular UDVA ≥20/25, compared to 100% for CDVA, and the mean binocular UDVA and CDVA were 0.02±0.06 and 0.00±0.05 logMAR, respectively. At intermediate vision, 65.22% of patients showed a binocular UIVA ≥20/25, compared to 86.96% for CDIVA, and the mean binocular UIVA and CDIVA were 0.07±0.06 and 0.06 ±0.06 logMAR, respectively. At near, 95.65% of patients showed a binocular UNVA and CDNVA ≥20/25, with a mean binocular UDNVA and CDNVA of 0.04±0.07 and 0.02±0.05 logMAR, respectively. Finally, 95.65% of patients reported being quite satisfied to very satisfied with their vision and about 74% did not report any difficulty with their vision in their everyday life. Between 65.22% and 100% of patients reported no difficulty performing different tasks. Conclusion:Our study shows good visual and refractive outcomes with high satisfaction in patients implanted with the Triva-aXAY IOL with a 7.0 mm optical zone.

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Section: Dovepressmentioning

confidence: 99%

Clinical Performance of a New Trifocal IOL with a 7.0 mm Optical Zone

Pastor-Pascual,

Orts-Vila,

Tañá-Sanz

et al. 2023

OPTH

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Efficacy of Large Optic Intraocular Lenses in Myopic Eyes with Posterior Segment Pathology

Borkenstein

2021

Ophthalmol Ther

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We report a case series of patients with high myopia (axial length 25.04-27.59 mm) diagnosed with cataract and maculopathy who underwent a combined procedure of phacoemulsification with implantation of a large optic intraocular lens (IOL) and intravitreal injection. Six patients with a mean (± standard deviation) age of 73.20 ± 7.19 years received the 7.0-mm optic ASPIRA-aXA IOL (Hu-manOptics AG, Erlangen, Germany) and intravitreal injection of aflibercept at the end of the surgery. The corrected distance visual acuity (CDVA) improved significantly (p = 0.001) from a preoperative logMAR of 0.87 ± 0.28 logMAR to 0.49 ± 0.18 logMAR at 10 weeks postoperatively. Even though all patients had a persisting central scotoma due to their maculopathy, there was a significant improvement in their subjective quality of life and self-autonomy. Patients reported no postoperative dysphotopsia. During surgery and postoperative examinations, the wide IOL optic permitted an enhanced view of the fundus. The IOLs remained stable after implantation, especially during the intravitreal injection at the end of the surgery. No IOL displacement or shift of the lens was observed. Retinal diseases are sightthreatening and diminish the patient's quality of life due to reduced visual acuity and visual field defects. When cataract surgery is performed in this patient group, a reduced prognosis can be assumed. Our results show that implantation of the large optic IOL enables a wide view of the fundus during and after surgery without any additional risks or negative effects. It may also reduce the risk of dysphotopsia in cases of IOL decentration in large capsular bags, but comparative studies with a higher number of cases are needed to confirm this. A large rhexis and large IOL optic seem to be advantageous for the retinal surgeon in follow-up surgeries on the posterior segment of the eye.

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A Novel 3D High Resolution Imaging Method Using Correlative X-Ray and Electron Microscopy to Study Neodymium-Doped Yttrium Aluminum Garnet Laser-Induced Defects in Intraocular Lenses

Borkenstein,

Mikitisin,

Schwedt

et al. 2024

Ophthalmic Res

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Introduction: Cataract extraction is the most frequently performed ophthalmological procedure worldwide. Posterior capsule opacification (PCO) remains the most common consequence after cataract surgery and can lead to deterioration of the visual performance with cloudy, blurred vision and halo, glare effects. Nd:YAG laser capsulotomy is the gold standard treatment and a very effective, safe and fast procedure in removing the cloudy posterior capsule. Damaging the intraocular lens during the treatment may occur due to wrong focus of the laser beam. These YAG-pits may lead to a permanent impairment of the visual quality. Methods: In an experimental study, we intentionally induced YAG pits in hydrophilic and hydrophobic acrylic intraocular lenses (IOLs) using a photodisruption laser with 2.6mJ. This experimental study established a novel 3D imaging method using correlative X-Ray and scanning electron microscopy to characterize these damages. By integrating the information obtained from both X-ray microscopy and SEM, a comprehensive picture of the materials structure and performance could be established. Results: It could be revealed that although the exact same energies were used to all samples, the observed defects in the tested lenses showed severe differences in shape and depth. While YAG pits in hydrophilic samples range from 100 to 180 µm depth with a round shape tip, very sharp tipped defects up to 250 µm in depth were found in hydrophobic samples. In all samples, particles/fragments of the IOL material were found on the surface that were blasted out as a result of the laser shelling. Conclusion: Defects in hydrophilic and hydrophobic acrylic materials differ. Material particles can detach from the IOL and were found on the surface of the samples. The results of the laboratory study illustrate the importance of a precise and careful approach to Nd:YAG capsulotomy in order to avoid permanent damage to the IOL. The use of an appropriate contact glass and posterior offset setting to increase safety should be carried out routinely.

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Performance einer neuen 7-mm-Intraokularlinse mit Nachbeobachtung über 1,5 Jahre

Cited by 5 publications

References 18 publications

Clinical Performance of a New Trifocal IOL with a 7.0 mm Optical Zone

Clinical Performance of a New Trifocal IOL with a 7.0 mm Optical Zone

Efficacy of Large Optic Intraocular Lenses in Myopic Eyes with Posterior Segment Pathology

A Novel 3D High Resolution Imaging Method Using Correlative X-Ray and Electron Microscopy to Study Neodymium-Doped Yttrium Aluminum Garnet Laser-Induced Defects in Intraocular Lenses

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