1,720,964 research outputs found
The Effects of Phacoemulsification and Intraocular Lens Implantation on Anatomical and Functional Parameters in Patients with Primary Angle Closure: A Prospective Study. (An American Ophthalmological Society Thesis)
No full textTo investigate the clinical, anatomical, and patient-reported outcomes of phacoemulsification (PE) with intraocular lens implantation performed to treat primary angle closure (PAC) and primary angle-closure glaucoma (PACG)
Clinical evaluation of a novel device for anterior chamber angle photography
No full textObiettivi: valutazione della goniofotografia automatica (AGP) - immagini a colori dell’angolo camerulare (ACA) - nell’identificazione delle strutture anatomiche angolari e dei reperti patologici o post-chirurgici. Metodi: lo strumento GS-1 (Gonioscope GS-1; NIDEK Technologies Srl) è stato utilizzato per acquisire immagini a 360 gradi dell’ACA in entrambi gli occhi di 50 pazienti. L’inserzione apparente dell’iride per ogni quadrante ed eventuali altri reperti dell’ACA sono stati registrati. Tutti i pazienti sono stati sottoposti anche alla gonioscopia standard e l’angolo è stato valutato utilizzando la classificazione di Spaeth. La concordanza tra i due strumenti è stata determinata utilizzando il coefficiente di Cohen's pesato linearmente κ (KW). Risultati: dei 400 quadranti fotografati, 339 (84.8%) erano di qualità sufficiente per le analisi. L’età media (DS) era 56 (14.2) anni e 29 (58%) erano donne. La concordanza tra AGP con GS-1 e gonioscopia standard è risultata essere buona (KW, 0.65; 95% CI, 0.51 to 0.78). Non ci sono state differenze tra AGP e gonioscopia circa l’identificazione di reperti anormali quali: XEN gel stent, dispositivo Ex-PRESS, tubicino di impianto drenante, trabeculectomia, IOL a supporto angolare. Nessun evento avverso relativo alla gonioscopia o al GS-1 è stato osservato.Purpose: To assess Automatic GonioPhotography (AGP) - true color images of the anterior chamber angle (ACA) - for identifying angle anatomical structures and pathological or post-surgical findings. Methods: GS-1 (Gonioscope GS-1; NIDEK Technologies Srl) was used to acquire 360-degree images of the ACA on both eyes of 50 patients. Apparent iris insertion for each quadrant and others ACA’s findings were recorded. All patients underwent standard gonioscopy and the angle was graded using the Spaeth Classification. Inter-device agreement was determined by using Cohen's linearly weighted κ (KW) coefficient of concordance. Results: Of the 400 quadrants imaged, 339 (84.8%) were of sufficient quality for analysis. The mean (SD) patients’ age was 56 (14.2) years and 29 (58%) were women. AGP with GS-1 and standard gonioscopy showed good inter-device agreement on apparent iris insertion evaluation (KW, 0.65; 95% CI, 0.51 to 0.78). No differences between AGP and gonioscopy were observed in detecting findings such as XEN gel stent, Ex-PRESS device, long tube, trabeculectomy, anglesupported IOL. No adverse events related to gonioscopy or GS-1 examination were observed. Conclusions: AGP using the GS-1 is a reliable method for assessing apparent iris insertion and proved useful in detecting pathological and post-surgical ACA findings
Interobserver and interdevice agreement for the assessment of anterior chamber angle potography with an automated gonioscope.
No full textInterobserver and interdevice agreement for the assessment of anterior chamber angle potography with an automated gonioscope.
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Ocular involvement in systemic sclerosis: A systematic literature review, it's not all scleroderma that meets the eye
No full textObjectives: Systemic sclerosis (SSc) is a rare and complex autoimmune disorder characterized by microvascular damage and progressive fibrosis which affects the skin and multiple other organs. Much of the published data concerning SSc and the eye consists of single case reports or small case studies. This systematic review aims to provide an overview of the current level of evidence for SSc-related ocular changes.
Materials and methods: A systematic literature review was conducted using 3 electronic databases, according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. A combination of following keywords was used: “Systemic Sclerosis” and ophthalmology-related search terms, including the keywords “Eye”, “Ocular” and “Ophthalmic”. All articles were screened by 2 independent reviewers at title, abstract and full text level. We solely included case-control studies that investigated specific ocular findings in SSc patients compared to healthy controls.
Results: Nine of 270 articles were retained. Dry eye symptoms are associated with SSc, whereas objective signs (Schirmer I testing) show conflicting results. There is insufficient evidence of SSc-related changes to the central corneal thickness. In terms of posterior segment involvement, choroidal vasculature appears to be affected to greater extent than the retinal microcirculation. However, the limited number of patients included in the studies renders it hazardous to draw overall conclusions.
Conclusions: There is a paucity of well-designed case-control studies investigating possible ocular involvement in SSc. Our systematic review demonstrates limited proven associations between SSc and ocular abnormalities, mainly in terms of dry eye symptoms and choroidal thickness. Future standardized prospective studies are needed to clarify the impact of the disease on the eye
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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