Results 91 to 100 of about 1,248,900 (279)
Acta Ophthalmologica, EarlyView.Abstract Purpose To determine the relationship between the baseline junctional retinal sensitivity measured with microperimetry and the atrophy progression rate in eyes with geographic atrophy (GA) secondary to age‐related macular degeneration. Methods In this prospective cohort study, patients with GA were examined with fundus autofluorescence (FAF ...
Alexander Kai Thomsen +5 more
wiley +1 more source
The effect of rhegmatogenous retinal detachment on retinal oxygenation
Acta Ophthalmologica, EarlyView.Abstract Purpose Little is known about the effects of retinal detachment on oxygen extraction from retinal vessels. The role of oxygen supply from the retinal vessels in a detached area has not previously been investigated in vivo in humans. Retinal oximetry is a non‐invasive measurement of retinal oxygen saturation.
Anne‐Sofie Petri +8 more
wiley +1 more source
Retinal dystrophies simulating geographic atrophy: A diagnostic challenge
Acta Ophthalmologica, EarlyView.Abstract Geographic atrophy (GA) is the chronic loss of retinal pigment epithelium, photoreceptors and choriocapillaris, marking the dry late stage of age‐related macular degeneration (AMD). GA prevalence is expected to rise in the upcoming decades. Advanced GA leads to central scotomas, reducing visual acuity and quality of life, potentially resulting
Johanna M. Colijn +3 more
wiley +1 more source
Solar activity prediction of sunspot numbers (verification). Predicted solar radio flux; predicted geomagnetic indices Ap and Kp [PDF]
, 1980 Efforts to further verify a previously reported technique for predicting monthly sunspot numbers over a period of years (1979 to 1989) involved the application of the technique over the period for the maximum epoch of solar cycle 19. Results obtained are
Newman, S. R.
core
Regression Analysis of Sunspot Numbers for the Solar Cycle 24 in Comparison to Previous Three Cycles [PDF]
, 2014 Sunspots are temporary phenomena on the photosphere of the Sun which appear visibly as dark spots compared to surrounding regions. Sunspot populations usually rise fast but fall more slowly when observed for any particular solar cycle.
Halder, Debojyoti
core +1 more source
Three years of ocular proton therapy in the Netherlands, clinical results
Acta Ophthalmologica, EarlyView.Abstract Purpose Uveal melanoma (UM) is a rare cancer with rising number of diagnosis (143 diagnoses in 1990 to 226 in 2023) in the Netherlands. Most patients are treated locally with Ruthenium‐106 brachytherapy (±102/year). Patients were referred for proton therapy (PT) to Switzerland in the past, but PT is available in the Netherlands from January ...
C. Rasch +14 more
wiley +1 more source
High resolution power spectra of daily Zurich sunspot numbers [PDF]
, 1973 High resolution power spectra of 77 years of Zurich daily sunspot numbers were computed using various lags and data point intervals. Major harmonic peaks of the approximately 124-month period showed up strongly as well as the 27-day solar rotational ...
Euler, H. C., Jr.
core
On long-term predictions of the maximum sunspot numbers of solar cycles 21 to 23
, 2001 We have collected a set of predicted values of maximum sunspot numbers of solar cycles 22 and 23 published in the literature and examined the characteristics of predictions made by various methods.
H. S. Yun, X. M. Gu, K. J. Li
core +1 more source
Acta Ophthalmologica, EarlyView.Abstract Purpose Early diagnosis of macular telangiectasia type 2 (MacTel) remains challenging, and the contribution of genetic variation to its clinical heterogeneity is unclear. This study investigated associations between MacTel risk variants and clinical characteristics in a Slovenian cohort.
Ajda Kunčič +4 more
wiley +1 more source
Inter‐eye microvascular asymmetry across stages of diabetic retinopathy: An OCT angiography study
Acta Ophthalmologica, EarlyView.Abstract Purpose To evaluate inter‐eye asymmetry in macular microvascular parameters across different stages of diabetic retinopathy (DR) using OCT angiography, and to explore the associations with clinical factors. Methods This cross sectional study included 442 eyes of 221 patients with diabetes mellitus type 2. Central subfield thickness (CST), area
Stela Vujosevic +10 more
wiley +1 more source