: Involutional changes of lid structures often induce horizontal lid laxity; this can result in a reduction of Meibomian gland expression, potentially leading to symptoms of dry eye. The aim of this study was to evaluate the effect of tightening the lower eyelid via a lateral canthal sling (LCS) procedure on dry eye parameters.: Patients with Meibomian Gland Dysfunction (MGD), lower lid laxity (positive Snap-back Test and positive Pinch Test) and no previous lid surgery were evaluated before and 3 months after LCS procedure for symptoms by OSDI.
View Article and Find Full Text PDFIntroduction: Dry eye disease (DED) is a multifactorial disease of the ocular surface characterized by loss of homeostasis of the tear film. Epidemiological studies suggest it occurs more frequently in women than men. The aim of this retrospective analysis was to determine whether patients with DED show gender-specific differences in symptoms and signs.
View Article and Find Full Text PDFIn 2015, the first revision of the international classification of corneal dystrophies (IC3D) has been published. According to this latest version of the IC3D the dystrophies of the cornea are divided into · epithelial and subepithelial dystrophies,. · epithelial-stromal TGFBI dystrophies,.
View Article and Find Full Text PDFThe corneal epithelium is the most important structure of the ocular optical system. Recurrent corneal erosions can result from inflammation, trauma, degeneration and dystrophies. Epithelial basement membrane dystrophy (EBMD), epithelial recurrent erosion dystrophy (ERED) and Francheschetti and Meesmann's epithelial corneal dystrophy (MECD) can all - besides other signs and symptoms - result in more or less frequent corneal erosions.
View Article and Find Full Text PDFThe objectives of the study were to investigate the value of optical coherence tomography in detecting papilledema in patients with idiopathic intracranial hypertension (IIH), a disease which is difficult to monitor and which can lead to permanent visual deficits; to analyze retinal changes over time. In this non-interventional case-control study, spectral-domain optical coherence tomography (SD-OCT) was used to analyze the retinal and optic nerve head (ONH) morphology of 21 patients with IIH and 27 age- and sex-matched healthy controls over time. We analyzed the ONH volume using a custom-made algorithm and employed semi-automated segmentation of macular volume scans to assess the macular retinal nerve fiber layer (RNFL) and ganglion cell layer and inner plexiform layer complex as well as the total macular volume.
View Article and Find Full Text PDFBackground: A characteristic disease pattern may be reflected by retinal layer thickness changes in non-arteritic anterior ischaemic optic neuropathy measured using spectraldomain optical coherence tomography. Retinal layer segmentation is enabled by advanced software. In this study, retinal layer thicknesses in acute and chronic non-arteritic anterior ischaemic optic neuropathy were compared.
View Article and Find Full Text PDFBackground: To identify the disease-causing mutation in a consanguineous family of Morrocan origin with syndromic autosomal recessive (ar) cone-rod dystrophy (CRD) in two patients and describe genotype-phenotype correlations.
Materials And Methods: Genome-wide homozygosity mapping and direct sequencing of C8orf37, located in a homozygous interval, was performed in the family. mRNA analysis revealed the effect of the newly identified splice-site mutation.
Unlabelled: Fingolimod is a potent drug in relapsing forms of multiple sclerosis. Visual impairment due to fingolimod-associated macular edema (FAME) usually leads to discontinuation of fingolimod therapy.
Methods: We report on a 24-year old woman with bilateral FAME.
Objective: The aim of this non-interventional study was to characterize retinal layer pathology in Susac syndrome (SuS), a disease with presumably autoimmune-mediated microvessel occlusions in the retina, brain, and inner ear, in comparison to the most important differential diagnosis multiple sclerosis (MS).
Methods: Seventeen patients with SuS and 17 age- and sex-matched patients with relapsing-remitting MS (RRMS) and healthy controls (HC) were prospectively investigated by spectral-domain optical coherence tomography (OCT) including intraretinal layer segmentation in a multicenter study. Patients with SuS additionally received retinal fluorescein angiography (FA) and automated perimetry.
Objective: To investigate whether patients with moyamoya angiopathy without obvious retinal pathologies such as retinal infarctions or the congenital morning glory anomaly may have subtle subclinical retinal changes.
Methods: In this cross-sectional study, spectral domain optical coherence tomography was used to analyze the retinal morphology of 25 patients with idiopathic moyamoya angiopathy and 25 age- and sex-matched healthy controls. We analyzed the retinal vasculature with blue laser autofluorescence, lipofuscin deposits with MultiColor confocal scanning laser ophthalmoscopy, and the optic nerve head (ONH) volume with a custom postprocessing algorithm.
Aim. The aim of this study was to determine the intra- and interobserver variability of two Scheimpflug based camera systems, Pentacam and Sirius. In addition, the comparability of the measurements was tested in healthy subjects, subjects with regular astigmatism, and keratoconus patients.
View Article and Find Full Text PDFAmyotrophic lateral sclerosis (ALS) is characterized by neuro-ophthalmological abnormalities beyond disturbed oculomotor control such as decreased visual acuity and disturbed visual evoked potentials. Here we report retinal alterations in a cohort of 24 patients with clinically definite (n = 20) or probable (n = 4) ALS as compared to matched controls. High-resolution spectral domain optical coherence tomography with retinal segmentation revealed a subtle reduction in the macular thickness and the retinal nerve fiber layer (RNFL) as well as a marked thinning of the inner nuclear layer (INL).
View Article and Find Full Text PDFAmniotic membrane (AM) transplantation is the clinical standard for ocular surface reconstruction, however recently keratin film (KF) has been proposed as an alternative material. Aim of the current study was to evaluate corneal biocompatibility of KF in a rabbit model. Forty-six New Zealand white rabbits underwent dissection of a corneal intrastromal pocket in which an AM or KF implant was inserted and observed for 10 days and for 4 weeks.
View Article and Find Full Text PDFAims: The main purpose of this study was to investigate the relationship between Meibomian gland atrophy (meiboscore) and Meibomian gland expressibility. In addition, the local distribution of Meibomian gland loss was analyzed.
Methods: A retrospective analysis of 128 patients (92 women and 36 men, 57 ± 17 years) from our dry eye clinic was performed.
Purpose: The aim of this study was to evaluate the 6-month effect of a single automated thermodynamic treatment (LipiFlow) and implications of meibomian gland atrophy on treatment efficacy 6 months after application.
Methods: We analyzed the data of 26 subjects with meibomian gland dysfunction before and 6 months after treatment. Investigated parameters included subjective symptoms, lipid layer thickness, meibomian gland assessment, tear osmolarity, corneal and conjunctival staining, lid margin parallel conjunctival folds, Schirmer test values, bulbar redness, tear meniscus height, meibomian gland atrophy, and noninvasive tear break-up time.
Purpose: To compare the effectiveness of a single LipiFlow(®) treatment with combined lid warming and massage in patients with meibomian gland dysfunction (MGD).
Methods: In this prospective, randomized, crossover, observer-masked clinical trial, subjects were randomized to receive either a single 12-min LipiFlow-LipiFlow Thermal Pulsation (LTP) system treatment or to perform combined twice-daily lid warming and massage for 3 months. All subjects were examined before, and 1 and 3 months after initiation of treatments.
Purpose: The LipiView interferometer (TearScience Inc, Morrisville, NC) is capable of delivering quantitative values of the tear-film lipid layer thickness (LLT). The purpose of this study was to investigate whether there is a correlation between the LLT and other diagnostic criteria for Meibomian gland dysfunction (MGD).
Methods: We performed a retrospective analysis of 110 patients (199 eyes) from our dry eye clinic.
Background/objective: In addition to cirrhosis of the liver, Wilson's disease leads to copper accumulation and widespread degeneration of the nervous system. Delayed visual evoked potentials (VEPs) suggest changes to the visual system and potential structural changes of the retina.
Methods: We used the latest generation of spectral domain optical coherence tomography to assess the retinal morphology of 42 patients with Wilson's disease and 76 age- and sex-matched controls.
Susac syndrome, a rare but probably underdiagnosed combination of encephalopathy, hearing loss, and visual deficits due to branch retinal artery occlusion of unknown aetiology has to be considered as differential diagnosis in various conditions. Particularly, differentiation from multiple sclerosis is often challenging since both clinical presentation and diagnostic findings may overlap. Optical coherence tomography is a powerful and easy to perform diagnostic tool to analyse the morphological integrity of retinal structures and is increasingly established to depict characteristic patterns of retinal pathology in multiple sclerosis.
View Article and Find Full Text PDFA single-dose ingestion of flavanol-rich cocoa acutely reverses endothelial dysfunction. To investigate the time course of endothelial function during daily consumption of high-flavanol cocoa, we determined flow-mediated dilation (FMD) acutely (for up to 6 hours after single-dose ingestion) and chronically (administration for 7 days). The study population represented individuals with smoking-related endothelial dysfunction; in addition to FMD, plasma nitrite and nitrate were measured.
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