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result(s) for
"Böhm, Myriam"
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Visual performance of an extended depth of focus intraocular lens for treatment selection
2019
PurposeTo evaluate the visual performance of an extended depth of focus (EDOF) intraocular lens (IOL) for patient selection.MethodsThis prospective non-comparative case series evaluated fifty-two eyes (26 patients) after bilateral implantation of the Tecnis Symfony IOL. Exclusion criteria were previous ocular surgeries, corneal astigmatism of >1.5 diopter, and ocular pathologies or corneal abnormalities. Uncorrected (UCVA) and distance-corrected (DCVA) visual acuity (VA) in 4 m, 80 cm, 60 cm and 40 cm (logMAR), defocus curve, contrast sensitivity (CS) and a questionnaire on subjective quality of vision (QoV) were assessed after 3 months.ResultsUCVA was −0.02 ± 0.071 logMAR at 4 m, 0.01 ± 0.077 logMAR at 80 cm, 0.08 ± 0.187 logMAR at 60 cm and 0.22 ± 0.153 logMAR at 40 cm. Defocus curve testing showed a flat VA range from 0.00 to −1.50 D (−0.05–0.02 logMAR). At near distance from −2.0 to −2.5 D a dip of DCVA was observed (0.14–0.28 logMAR). CS under photopic and mesopic conditions without and with glare was 1.56 logCS, 0.86 logCS, 0.78 logCS, respectively. Spectacle independence was achieved in 100% for distance and intermediate vision and 71% of patients at near distance.ConclusionThis EDOF IOL provides excellent intermediate and far (<0.1 logMAR) and acceptable near UCVA (<0.3 logMAR). Defocus curve testing confirmed an EDOF between far and intermediate distance and showed a dip at near distance. It provides good QoV, CS, high spectacle independence, perception of few optical phenomena, and particularly good night-driving capabilities.
Journal Article
Visual Outcomes and Safety of a Refractive Corneal Inlay for Presbyopia: One-Year Results
2024
Purpose:
To determine the visual outcomes and safety 12 months after implantation of the Presbia Flexivue Microlens refractive corneal inlay.
Methods:
In this prospective, non-randomized trial, 22 patients with a mean age of 52.54 ± 2.86 years were implanted with the Flexivue Microlens refractive corneal inlay in the non-dominant eye at the Department of Ophthalmology, Goethe University, Frankfurt, Germany. Corrected near, intermediate, and distance (CNVA, CIVA, and CDVA) visual acuity and uncorrected near, intermediate, and distance (UNVA, UIVA, and UDVA) visual acuity, manifest refraction, subjective quality of vision, endothelial cell count, and contrast sensitivity were measured 1 day, 1 week, and 1, 3, 6, and 12 months postoperatively.
Results:
For binocular CDVA, no patient lost two or more lines and 30% lost only one line at the 12-month visit. In the eye that had surgery, 85% of the patients lost two or more lines of UDVA, which was statistically significant. Sixty-five percent of the patients gained one or more lines in binocular UIVA, and 80% achieved 20/40 or better in DCIVA. UNVA showed a statistically significant improvement, with 90% of the patients achieving 20/40 or better 12 months after implantation. A total of 85% gained two or more lines in binocular UNVA.
Conclusions:
This refractive corneal inlay showed an improvement in binocular UNVA, UIVA, CNVA, and CIVA, whereas binocular CDVA and UDVA were not statistically affected.
[J Refract Surg. 2024;40(1):e1–e9.]
Journal Article
Cost-effectiveness analysis of preloaded versus non-preloaded Descemet membrane endothelial keratoplasty for the treatment of Fuchs endothelial corneal dystrophy in an academic centre
2022
AimsTo determine the cost-effectiveness of preloaded Descemet membrane endothelial keratoplasty (pDMEK) versus non-preloaded DMEK (n-pDMEK) for the treatment of Fuchs endothelial corneal dystrophy (FECD).MethodsFrom a societal and healthcare perspective, this retrospective cost-effectiveness analysis analysed a cohort of 58 patients with FECD receiving pDMEK (n=38) or n-pDMEK (n=30) from 2016 to 2018 in the Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, USA. Exclusion criteria were previous ocular surgeries (other than uncomplicated cataract surgery), including other keratoplasty procedures, ocular pathological conditions as glaucoma, amblyopia, laser treatments, or any retinal or corneal disease. The main outcome parameters were the incremental cost-utility ratio (ICUR) and net monetary benefit (NMB).ResultspDMEK was less costly compared with n-pDMEK (healthcare: $13 886 vs $15 329; societal: $20 805 vs $22 262), with a slighter greater utility (QALY 0.6682 vs QALY 0.6640) over a time horizon of 15 years. pDMEK offered a slightly higher clinical effectiveness (+0.0042 QALY/patient) at a lower cost (healthcare: –$1444 per patient; societal: –$1457 per patient) in improving visual acuity in this cohort of patients with FECD. pDMEK achieved a favourable ICUR and NMB compared with n-pDMEK. Based on sensitivity analyses performed, the economic model was robust.ConclusionsFrom the societal and healthcare perspective, pDMEK was less costly and generated comparable utility values relative to n-pDMEK. Therefore, pDMEK appears to be cost-effective and cost saving with respect to n-pDMEK. Further long-term follow-up data are needed to confirm these findings.
Journal Article
Impact of Pseudoexfoliative Syndrome on Effective Lens Position, Anterior Chamber Depth Changes, and Visual Outcome After Cataract Surgery
by
Shajari, Mehdi
,
Kohnen, Thomas
,
Pawlowicz, Katarzyna
in
anterior depth changes
,
Cataract
,
cataract surgery
2021
To compare the effective lens position (ELP), anterior chamber depth (ACD) changes, and visual outcomes in patients with and without pseudoexfoliation syndrome (PEX) after cataract surgery.
Prospective, randomized, fellow-eye controlled clinical case series.
This prospective comparative case series enrolled 56 eyes of 56 consecutive patients with (n = 28) or without PEX (n = 28) and clinically significant cataract who underwent standard phacoemulsification and were implanted with single-piece acrylic posterior chamber intraocular lenses (IOLs). The primary outcome parameters were the ACD referring to the distance between the corneal anterior surface and the lens anterior surface, which is an indicator of the postoperative axial position of the IOL (the so-called ELP) and distance corrected visual acuity (DCVA).
Before surgery, the ACD was 2.54 ± 0.42 mm in the PEX group and 2.53 ± 0.38 mm in the control group (p = 0.941). Postoperatively, the ACD was 4.29 ± 0.71 mm in the PEX group and 4.33 ± 0.72 mm in the normal group, respectively (p = 0.533). There was no significant difference in ACD changes between groups (PEX group: 1.75 ± 0.74 mm, control group: 1.81 ± 0.61 mm, p = 0.806) and DCVA pre- (p = 0.469) and postoperatively (PEX group: 0.11 ± 0.13 logMAR, control group: 0.09 ± 0.17 logMAR, p = 0.245) between groups.
Preoperative and postoperative ACD, as an indicator of ELP, between PEX eyes and healthy eyes after cataract surgery showed no significant difference. Phacoemulsification induced similar changes in eyes with PEX compared to healthy eyes.
Journal Article
Effects of Pupil Size on Functional Outcomes of a Simultaneous Vision Intraocular Lens
2025
Purpose
To evaluate the relationship between pupil size and subjective visual quality after implantation of a simultaneous vision intraocular lens (IOL).
Methods
Patients after bilateral implantation of a trifocal, diffractive IOL were prospectively included. Three months postoperatively, subjective refraction, UDVA, and axis deviation were measured. Pupil size was obtained with an infrared-based pupillometer (PupilX; Albomed) in scotopic, mesopic, and photopic conditions. Subjective impairment with optical phenomena was surveyed in different lighting conditions.
Results
Fifty-two patients (mean age: 68 years) were included; 54 eyes received non-toric IOLs and 50 eyes received toric IOLs. Preoperative spherical equivalent (SE) was −0.914 diopters (D) (range: −10.00 to +5.92 D) and SE and lens torus were 20.3 D (range: 9.00 to 32.00 D) and 1.65 D (range: 1.00 to 3.75 D), respectively. Three months postoperatively pupil size was 5.42 mm (range: 2.60 to 7.50 mm) in scotopic, 4.24 mm (range: 2.60 to 6.10 mm) in mesopic, and 3.38 mm (range: 1.20 to 5.60 mm) in photopic conditions, spherical manifest refractive error 0.14 D (range: −0.75 to 1.25 D), SE 0.034 D (range: −1.13 to +1.13 D), and UDVA 20/22.4 (range: 20/63 to 20/12.5). In low light conditions, halos correlated weakly with scotopic (r = 0.268, P = .006) and mesopic (r = 0.298, P = .002) pupil size and double-contour with scotopic pupil size (r = 0.234, P = .018). Glare, starbursts, and blurred vision were not influenced in any condition. Further significant influential factors were postoperative spherical manifest refractive error (P = .014), SE (P = .007) and lens torus (P = .029) for halos and preoperative SE (P = .019), postoperative UDVA (P = .035), and lens SE (P = .023) for double-contour. In multiple regression analysis, lens torus, mesopic pupil size, preoperative SE, and postoperative UDVA remained significant.
Conclusions
Pupil size did not play a major role in disturbance with optical phenomena after implantation of a trifocal diffractive IOL.
[J Refract Surg. 2025;41(7):e645–e654.]
Journal Article
Presbyopia Correction in Astigmatic Eyes Using a Toric Trifocal Intraocular Lens With Quadrifocal Technology
by
Kohnen, Thomas
,
Ahmad, Wasim
,
Pawlowicz, Katarzyna
in
Care and treatment
,
Cataracts
,
Contact lenses
2020
To evaluate the visual performance after bilateral implantation of a toric diffractive aspheric multifocal intraocular lens (IOL) with a +2.17 diopters (D) (60 cm) intermediate and a +3.25 D (40 cm) addition (add) power. This prospective single-arm study was conducted at the Department of Ophthalmology, Goethe University, Frankfurt, Germany. Twenty-five patients (50 eyes) received bilateral implantation of the toric PanOptix IOL (AcrySof IQ PanOptix; Alcon Research LLC) before enrollment. Exclusion criteria were previous ocular surgeries excluding lens surgery and ocular pathologies or corneal abnormalities. Examination at 3 months postoperatively included manifest refraction; monocular and binocular uncorrected distance (UDVA) and distance-corrected (DCVA) visual acuity at 4 m and 80, 60, and 40 cm; and slit-lamp examination. At 3 months postoperatively, monocular and binocular defocus, binocular contrast sensitivity under photopic and mesopic conditions, and optical phenomena, and spectacle independence were evaluated. Mean refractive spherical equivalent was 0.12 ± 0.380 D and mean refractive cylinder was −0.21 ± 0.237 D at 3 months postoperatively. A significant decrease in refractive cylinder was observed postoperatively (P <.05), with 98% showing a postoperative astigmatism below 0.75 D. Monocular UDVA was better than 0.14 logMAR in all distances. Binocular defocus curve showed peaks at 0.00 D (−0.09 logMAR) and −1.50 and −2.00 D (−0.02 and 0.00 logMAR). The worst values between far (4 m) and near (40 cm) distance were 0.04 logMAR at −1.00 D. Despite some optical phenomena, 92% of patients would choose the same IOL again and recommend it to others. The visual performance of the toric PanOptix IOL showed good visual acuity at all distances; more than 90% achieved a decrease of refractive cylinder below 0.75 D, high patient satisfaction despite some optical phenomena, and high spectacle independence 3 months postoperatively.
Journal Article
Corneal densitometry after accelerated corneal collagen cross-linking in progressive keratoconus
2019
PurposeTo analyze changes in corneal densitometry 3 months after accelerated corneal collagen cross-linking (CXL) measured with Scheimpflug tomography.MethodsIn this study we reviewed charts and anterior segment data of patients who had undergone accelerated pulsed epithelium-off CXL (30 mW/cm2 for 4 min, 8 min total radiation time) for treatment of progressive keratoconus in the Department of Ophthalmology, Goethe University, Frankfurt, Germany. Visual, topographic, pachymetric and densitometric data were extracted before surgery and at the 3-month follow-up. Corneal densitometry measurements from different corneal layers and zones obtained using Scheimpflug tomography (Pentacam HR, Oculus).ResultsThe study investigated 12 eyes of 12 patients. The anterior (120 μm) stromal layer within the 0.0 to 2.0 mm and 2.0 to 6.0 mm concentric zones showed a significant elevation of mean densitometry 3 months post-surgery (P = 0.045; P = 0.015) compared to baseline. A mean stromal demarcation line was apparent at a depth of 203.00 μm ± 13.53 (SD). After accelerated CXL, no change in mean corrected distance visual acuity (LogMAR) was observed but a thinning of the cornea measured by a significant reduction in central pachymetry (μm).ConclusionAccelerated CXL results in an increase in corneal densitometry, particularly in the anterior stromal layer within the two central concentric zones (0.0 to 2.0 mm and 2.0 to 6.0 mm) of the cornea at 3 months postoperatively. The changes in corneal densitometry of the anterior stromal layer did not correlate with postoperative visual acuity or central pachymetry.
Journal Article
Liposomal Nasal Spray versus Guideline-Recommended Steroid Nasal Spray in Patients with Chronic Rhinosinusitis: A Comparison of Tolerability and Quality of Life
by
Glowania, Andreas
,
Eitenmüller, Anna
,
Shah-Hosseini, Kija
in
Clinical Study
,
Drug therapy
,
Health aspects
2014
Objective. To investigate the tolerability and impact on quality of life of liposomal nasal spray compared to guideline-recommended steroid-based therapy in patients with chronic rhinosinusitis. Symptom reduction and use of antisymptomatic medication were also examined. Methods. In this monocenter, prospective, controlled, open, and noninterventional study, 60 patients with chronic rhinosinusitis were treated with liposomal nasal spray and 30 patients received steroid-based therapy. The study comprised five visits occurring at intervals of two to four weeks. Efficacy was determined according to the sinusitis symptom score documented daily. The polyp score was recorded at the initial and final visits. Tolerability was determined through the Nasal Spray Evaluation Questionnaire, and quality of life was ascertained with the SNOT-20 Score. Results. Both treatments achieved a significant reduction of sinusitis symptoms (P<0.05) and also rhinoscopic improvement (P<0.05). The majority of patients assessed the treatments as “good” or “very good,” and the quality of life improved significantly (P<0.05). There was no significant difference in symptom reduction, QoL, and endoscopic exams between both treatments. Conclusion. The treatment of chronic rhinosinusitis with liposomal nasal spray results in a similar, significant reduction of symptoms and significant improvement in quality of life as guideline-recommended treatment and is therefore a comparable alternative.
Journal Article
What matters in mental health care? A co-design approach to developing clinical supervision tools for practitioner competency development
by
Karimet, Myriam
,
Keane, Gregory
,
Böhm, Bettina
in
Accreditation
,
Capacity building approach
,
Clinical skills
2022
BackgroundSpecialised mental health (MH) care providers are often absent or scarcely available in low resource and humanitarian settings (LRHS), making MH training and supervision for general health care workers (using task-sharing approaches) essential to scaling up services and reducing the treatment gap for severe and common MH conditions. Yet, the diversity of settings, population types, and professional skills in crisis contexts complicate these efforts. A standardised, field tested instrument for clinical supervision would be a significant step towards attaining quality standards in MH care worldwide.MethodsA competency-based clinical supervision tool was designed by Médecins Sans Frontières (MSF) for use in LRHS. A systematic literature review informed its design and assured its focus on key clinical competencies. An initial pool of behavioural indicators was identified through a rational theoretical scale construction approach, tested through waves of simulation and reviewed by 12 MH supervisors in seven projects where MSF provides care for severe and common MH conditions.ResultsQualitative analysis yielded two sets of competency grids based on a supervisee's professional background: one for ‘psychological/counselling’ and another for ‘psychiatric/mhGAP’ practitioners. Each grid features 22–26 competencies, plus optional items for specific interventions. While the structure and content were assessed as logical by supervisors, there were concerns regarding the adequacy of the tool to field reality.ConclusionsHumanitarian settings have specific needs that require careful consideration when developing capacity-building strategies. Clinical supervision of key competencies through a standardised instrument represents an important step towards ensuring progress of clinical skills among MH practitioners.
Journal Article