Publications by authors named "Dirk Dekowski"

Purpose: Patients with incurable corneal diseases experience visual impairment (VI) despite having a healthy retina and optic pathway. Low-vision aids (LVAs) can optimize the use of remaining vision through magnification and contrast enhancement, but do not harness the full visual capacity because they rely on the optic media. Therefore, we investigated a novel laser eyewear (LEW) technology that bypasses the anterior segment of the eye.

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Purpose: Patients with vertical strabismus and consecutive diplopia due to Graves' orbitopathy (GO) might need recession of the rectus superior muscle. The aim of this retrospective analysis is to provide dose-effect values and motility analysis for these patients.

Methods: Dose-effect relations (deviation reduction in primary position per amount of recession in mm), monocular excursions and size of the field of binocular single vision (BSV) were evaluated in three different groups of patients.

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Purpose: We conducted this trial to investigate a new wearable laser-eyewear (LEW). Images of an integrated camera are projected to the retina by a RGB-Laser (<1µW) and MEMS-mirror system. This enables a full-color live video as augmented reality embedded in the field of vision of the wearer.

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Introduction: High myopic eyes grow in length (> 0.35 mm/dpt) more than in height and width leading to a disturbing unilateral exophthalmos in patients with anisomyopia and - more rarely - a bilateral exophthalmos in high myopia affecting both eyes. Secondary consequences are sicca symptoms and painful eye mobility due to a large bulbus in a too small bony orbit.

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Background: Although most patients with visual impairment due to corneal diseases can be treated successfully with surgery, some require visual rehabilitation to restore reading ability. To evaluate the best LVAs especially in terms of reading speed and characterize this specific patient group we performed a prospective, randomized cross-over trial.

Methods: All 34 patients underwent a detailed examination (slit-lamp, funduscopy, SD-OCT, ETDRS) as screening.

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Article Synopsis
  • This article reviews diagnostic and treatment options for common malignant tumors affecting the eye, including basal cell carcinoma, conjunctival lymphoma, squamous cell carcinoma, and conjunctival melanoma.
  • Key diagnostic steps include a detailed patient history, slit lamp exam, and photo documentation, with regular follow-ups needed to monitor for potential recurrences.
  • Treatment strategies vary by tumor type, including surgical excision for basal cell carcinoma, irradiation for lymphoma, and specialized therapies like mitomycin C or brachytherapy for squamous cell carcinoma and conjunctival melanoma.
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Article Synopsis
  • The article reviews diagnostic and treatment options for common epibulbar malignant tumors, including basal cell carcinoma, conjunctival lymphoma, squamous cell carcinoma, and conjunctival melanoma, emphasizing the need for detailed patient history and follow-up.
  • Basal cell carcinoma, the most common periocular skin tumor, is treated through total excision, while lymphomas are treated primarily with percutaneous irradiation.
  • Squamous cell carcinoma requires excision, but larger tumors may need additional treatments like mitomycin C, brachytherapy, or proton therapy, whereas conjunctival melanoma, although rare, necessitates excision and further therapies due to its aggressive nature.
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Purpose: Ocular surface squamous neoplasia, including intraepithelial neoplasia (CIN) and invasive squamous cell carcinoma (SCC), are one of the most common malignant tumors of the conjunctiva. Little is known of the genetic alterations involved in their pathogenesis. Promoter mutations in telomerase reverse transcriptase (TERT) have been identified in various cancers, including many associated with ultraviolet (UV) exposure.

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Purpose: To evaluate the technique, safety, and efficacy of the retropupillary implantation of iris-claw intraocular lenses in a long-term follow-up study.

Patients And Methods: This retrospective study included 31 eyes of 31 patients who underwent an Artisan aphakic intraocular lens implantation between January 2006 and February 2011 at the University Hospital Essen, Essen, Germany and at the Zentrum für Augenheilkunde PD Dr Laube, Düsseldorf, Germany. Preoperative data collected included demographics, etiology of aphakia, previous surgeries, preoperative eye pathology, intraocular pressure, clinical signs of endothelial cell loss, and best corrected visual acuity.

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Background: Glaucomatous optic neuropathy is characterized by a progressive loss of retinal ganglion cells (RGCs). The defects in the peripapillary retinal nerve fiber layer (RNFL) have been reported to be the earliest sign of glaucoma. We determined the agreement between RNFL thickness assessments from spectral-domain OCT (Spectarlis HRA + OCT; Heidelberg Engeneering, Heidelberg, Germany), scanning laser polarimetry (SLP) with variable cornea compensation (GDxVCC; Carl Zeiss Meditec, Dublin, CA, USA), and SLP with enhanced cornea compensation (GDxECC; Carl Zeiss Meditec, Dublin, CA, USA) in glaucomatous patients.

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