purpose : to offer a semi-automatic algorithm to determine the area of angiographic hyperfluorescence methods : the proposed algorithm included wavelet filter, histogram equalization and modified otsu thresholding. hyperfluorescent area of 30 angiographic images obtained from patients with leaking choroidal neovascularization (cnv) and diabetic retinopathy were evaluated and the results were co...

AIMS To determine indocyanine green (ICG) angiographic features prognostic of visual acuity loss in eyes following a natural course of exudative age related macular degeneration (AMD). METHODS 89 eyes of 72 patients (48 men, 24 women) aged between 50 and 87 years old (mean 69.5 (SD 8.8) years) with classic and/or occult choroidal neovascularisation (CNV) were reviewed. ICG angiographic featur...

PURPOSE To determine the efficacy of half-dose photodynamic therapy (PDT) in relation to indocyanine green angiography (ICGA) and optical coherence tomography (OCT) findings for treating chronic central serous chorioretinopathy (CSC). DESIGN Observational case series. METHODS Thirty-eight eyes of 37 patients with chronic CSC and symptoms for at least 6 months were recruited. PDT was perform...

One of the authors (R.K.) has described, in patients with granulomatous uveitis,' whitish lesions in the ciliary body band which showed hyperfluorescence shortly after fluorescein injection. The hyperfluorescent dots were considered to be granulomas in the ciliary body band. The purpose of this communication is to describe small, discrete, reddish lesions which have shown sharply defined hyperf...

Hyperfluorescent intensity maxima during protein unfolding titrations are often taken as a sign for a thermodynamic folding intermediate. Here we explore another possibility: that hyperfluorescence could be the signature of a "pretransition" conformationally loosened native state. To model such native states, we study mutants of a fluorescent ubiquitin variant, placing cavities at various dista...

Triplet state harvesting using thermally-activated delayed fluorescence (TADF) combined with efficient Förster resonant energy transfer (FRET) is studied quantum dynamics to understand the key properties controlling hyperfluorescence mechanism in 4th generation organic light-emitting diodes (OLEDs).

Anthracene-based non-doped OLED devices show EQE = 7.2% due to the delayed fluorescence resulting from triplet-triplet annihilation (TTA). The hyperfluorescence device, in combination with a TADF assistant dopant, provides high of 17.8%.

AIM To evaluate and compare the fluorescein (FA) and indocyanine green angiographic (ICGA) findings, and to investigate the choroidal involvement in Behçet's disease. METHODS FA and ICGA were performed on 112 eyes of 62 patients with Behçet's disease, between November 1993 and July 2002, using Topcon IMAGEnet Digital System. Patients were aged 16-50 years; 48 (77.4%) were male and 14 (22.6%) ...