6 results on '"Schöpfer, K."'
Search Results
2. Position-dependent accommodative shift of retropupillary fixated iris-claw lenses.
- Author
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Schöpfer K, Berger A, Korb C, Stoffelns BM, Pfeiffer N, and Sekundo W
- Subjects
- Adult, Aged, Aged, 80 and over, Anterior Chamber pathology, Cataract Extraction, Female, Humans, Iris surgery, Male, Middle Aged, Refraction, Ocular physiology, Retrospective Studies, Visual Acuity physiology, Accommodation, Ocular physiology, Head physiology, Lens Implantation, Intraocular, Lenses, Intraocular, Posture physiology, Pseudophakia physiopathology, Refractive Errors physiopathology
- Abstract
Purpose: After implantation of retropupillary fixated iris-claw lenses, changes of the objective refraction can occur depending on the patients' position. The purpose of this study was to evaluate and quantify these changes as well as the influencing factors., Methods: Within a retrospective study, postoperative refraction visual, acuity and anterior chamber depth after implantation of a retropupillary fixated iris-claw lens (Artisan® / Verisyse®) were measured in 51 eyes (49 patients) depending on their head position. These parameters were determined with the assistance of a mobile auto-refractometer, acoustic biometry, IOL-Master, chart projector and accommodometer in primary position, as well as in forward- and backward-tilted head position., Results: The data analysis indicated a position-dependent change of the anterior chamber depth, which was largest in the backward-tilted head position (median: 4.25 mm/min.: 3.39 mm/max.: 5.37 mm). In comparison to the primary position (4.15 mm), it decreased in a forward-tilted position of the head (4.08 mm). A significant difference in anterior chamber depth was verified for backward- and forward-tilted heads (median: 0.155 mm). Refraction showed a significant difference (0.37 D) between forward- and backward-tilted head position. In comparison to the back-tilted head position (mean: -0.065 D), a smaller spherical equivalent could be demonstrated by bending the head forward (mean: -0.438 D). In addition, no correlation was found between lens movement and other continuous attributes., Conclusions: Significant changes in anterior chamber depth and refraction due to the iris-claw lens shift were found, depending on head position. The phenomenon of pseudophakic accommodation is explained by pseudo-myopia and pseudo-hyperopia. A considerable influence on visual acuity depending on patients´ head position could not be verified.
- Published
- 2012
- Full Text
- View/download PDF
3. Intravitreal ranibizumab treatment of retinal angiomatous proliferation.
- Author
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Kramann CA, Schöpfer K, Lorenz K, Zwiener I, Stoffelns BM, and Pfeiffer N
- Subjects
- Aged, Aged, 80 and over, Angiomatosis diagnosis, Angiomatosis physiopathology, Female, Humans, Intravitreal Injections, Male, Middle Aged, Ranibizumab, Retinal Neovascularization diagnosis, Retinal Neovascularization physiopathology, Retreatment, Retrospective Studies, Tomography, Optical Coherence, Treatment Outcome, Visual Acuity physiology, Wet Macular Degeneration diagnosis, Wet Macular Degeneration physiopathology, Angiogenesis Inhibitors therapeutic use, Angiomatosis drug therapy, Antibodies, Monoclonal, Humanized therapeutic use, Retinal Neovascularization drug therapy, Wet Macular Degeneration drug therapy
- Abstract
Purpose: To determine the efficacy of intravitreal injections of ranibizumab in the treatment of retinal angiomatous proliferation (RAP) in neovascular age-related macular degeneration., Methods: Retrospective, consecutive case series of 26 eyes (26 patients) treated with intravitreal injections of 0.5 mg ranibizumab for RAP. Patients received intravitreal injections at monthly intervals during upload phase for a 3-month period., Results: Mean visual acuity before treatment was 0.75 ± 0.38logMAR (mean ± SD, n = 26). In the upload phase, mean visual acuity improved 4 weeks after the initial injection to 0.6 ± 0.37logMAR (n = 26) and to 0.53 ± 0.34logMAR (n = 26) 4 weeks after the third monthly intravitreal injection of ranibizumab. The mean optical coherence tomography (OCT) central foveal thickness reduced from 345 ± 55 μm at baseline to 215 ± 87 μm at 3 months. In the maintenance phase, mean visual acuity after 6 months was 0.66 ± 0.38logMAR (n = 12) and 0.7 ± 0.37logMAR after 9 months (n = 6). The mean OCT central foveal thickness was 259 ± 59 μm (n = 13) at 6 months and 280 ± 127 μm (n = 6) at nine-month follow-up., Conclusion: Intravitreal ranibizumab resulted in an improvement of visual acuity 4 weeks after the first injection but was more pronounced after 3 months. A reduction in leakage and OCT central foveal thickness was seen 3 months after the commencement of treatment., (© 2010 The Authors. Journal compilation © 2010 Acta Ophthalmol.)
- Published
- 2012
- Full Text
- View/download PDF
4. [Lysosomal storage diseases - update and new therapeutic options].
- Author
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Schöpfer K, Miebach E, Beck M, and Pitz S
- Subjects
- Eye Diseases, Hereditary etiology, Humans, Lysosomal Storage Diseases complications, Eye Diseases, Hereditary diagnosis, Eye Diseases, Hereditary therapy, Lysosomal Storage Diseases diagnosis, Lysosomal Storage Diseases therapy
- Abstract
Lysosomal storage diseases represent a group of about 50 genetic disorders. The deficiencies of lysosomal and non-lysosomal proteins cause an accumulation of compounds which are normally degraded within the lysosome. There are currently no therapeutic options to cure patients suffering from a lysosomal storage disease. Due to their progressive nature there is considerable morbidity and mortality. Thus, an early treatment to maintain major systemic functions is of utmost importance. While so far only symptomatic therapies are in use, the newly available enzyme replacement therapies offer a real causal approach for selected storage diseases. Many of these disorders are characterised by pathognomonic eye findings. Therefore, the ophthalmological examination provides the opportunity for an early and non-invasive diagnosis and a chance to initiate early treatment. This review is intended to give a survey of the most common lysosomal storage diseases, particularly with regard to ophthalmological changes as well as illustrate new therapeutic options., (© Georg Thieme Verlag KG Stuttgart · New York.)
- Published
- 2011
- Full Text
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5. [Pseudomelanomas of the choroid].
- Author
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Stoffelns BM, Schöpfer K, and Kramann C
- Subjects
- Comorbidity, Diagnosis, Differential, Female, Germany, Humans, Male, Prevalence, Risk Factors, Choroid Neoplasms diagnosis, Choroid Neoplasms epidemiology, Macular Degeneration diagnosis, Macular Degeneration epidemiology, Melanoma diagnosis, Melanoma epidemiology, Risk Assessment methods
- Abstract
Background: The aim of this study was to evaluate what are the most frequent ocular diseases that were suspected for choroidal melanoma ("pseudo melanoma")., Patients and Methods: The data of all patients who were seen in the University Hospital of Mainz under the suspicion of choroidal melanoma between 1.1.1994 and 1.1.2004 and underwent ultrasound examination, fluorescein angiography or fundus photography, were analysed retrospectively. Among 458 examined eyes a choroidal melanoma was diagnosed in 212 cases. In 246 cases the diagnosis was "pseudomelanoma"., Results: The most frequent ocular diseases suspected for choroidal melanoma were "suspicious nevi" in 31 % of the cases and "disciforme macula degeneration" in 34 %. Less frequently we found hyperplasty of pigment epithelium (5 %), melanocytoma (10 %), choroidal haemangioma (6 %), choroidal detachment (7 %) and retinal macroaneurysma with epi-/subretinal haemorrhages (3 %). Rare diagnoses were orbital tumour, scleritis posterior and a combined hamartoma of retina and pigment epithelium (4 % at all). In 58 eyes without a fundus view, ultrasound revealed an intraocular tumour. In these cases vitrectomy/cataract extraction was performed and we found a choroidal melanoma in 5 eyes, a disciforme macula degeneration in 48 eyes and in 5 eyes a retinal macroaneurysma., Conclusions: Age-related macula degeneration (AMD) is the cause for one third of all pseudomelanomas. Because of its increasing incidence in the future, more attention must be paid to AMD in the differential diagnosis of chorioretinal lesions suspicious of melanoma.
- Published
- 2007
- Full Text
- View/download PDF
6. [Prospective nonrandomised analysis of "Sandwich Therapy" for malignant melanoma of the choroid].
- Author
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Stoffelns BM, Kutzner J, Schöpfer K, and Frising M
- Subjects
- Adult, Aged, Choroid Neoplasms diagnosis, Combined Modality Therapy, Female, Fluorescein Angiography, Humans, Male, Melanoma diagnosis, Middle Aged, Ruthenium Radioisotopes therapeutic use, Treatment Outcome, Brachytherapy, Choroid Neoplasms therapy, Hyperthermia, Induced, Melanoma therapy
- Abstract
Background: To evaluate the effectiveness of transpupillary thermotherapy (TTT) as an adjunct to ruthenium brachytherapy for treatment of choroidal melanoma with reduced radioactive dose., Patients and Methods: In a prospective nonrandomised analysis 15 eyes with primary malignant melanoma of the choroid (posterior to the equator, thickness = 4.5 and base = 12 mm) were treated with TTT (diode laser at 810 nm, spot size 2 - 3 mm, energy 0.3 - 0.9 watt, exposure time 21 - 45 minutes) in conjunction with an attenuated ruthenium plaque (radioactive dose to the tumour apex 100 Gy). Follow-up was at least 12 months., Results: The mean tumour thickness before therapy was 3.2 mm (1.2 - 4.5 mm), the mean tumour regression 3 months postoperatively 2.1 mm (0.5 - 4.5 mm). 12 months postoperatively all tumours were regressed through a completely flattened chorioretinal scar. In 5 eyes visual acuity improved. The main reason for visual decrease in 7 eyes was subfoveal tumour location in 4 eyes, development of macular oedema in 2 eyes and epiretinal gliosis in one eye. Neither occlusion of retinal vessels nor radiation retinopathy/optic neuropathy were observed. Despite complete tumour regression clinically and fluoresceinangiographically, ICG-angiography revealed persistence of choriocapillary vessels especially at the posterior margin of the treatment zone in all eyes. No tumour regrowth or metastatic disease were recorded., Conclusions: Our 12-month results of TTT complementary to ruthenium brachytherapy with an attenuated tumour apex dose of 100 Gy for posterior choroidal melanoma with thickness = 4.5 mm are comparable to findings after TTT alone, especially in regard to regression course, low rate of sideeffects and visual results. ICG angiography might be a useful tool to monitor an eventual tumour regrowth in the choriocapillary layer. For evaluation of sideeffects of brachytherapy a postradiation follow-up of at least 2 - 5 years is mandatory.
- Published
- 2002
- Full Text
- View/download PDF
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