PURPOSE To evaluate the safety and efficacy of intravitreal injections of bevacizumab (Avastin((R))) as a treatment option for radiation maculopathy secondary to proton beam radiotherapy for choroidal melanoma. CASE A 61-year-old woman presented with a gradual decrease in left eye visual acuity (VA) 29 months after proton beam radiotherapy for choroidal melanoma. On presentation, her best-cor...

Purpose. To compare subfoveal choroidal, central retinal, and peripapillary nerve fiber layer (RNFL) thickness after panretinal photocoagulation (PRP) with red and green laser in diabetic patients. Study Design. Randomized clinical trial. Methods. A total of 50 patients with bilateral proliferative diabetic retinopathy and no diabetic macular edema underwent PRP. One eye was randomly assigned t...

PURPOSE Subthreshold laser treatment of diabetic macular edema (DME) may have less deleterious effects on the photoreceptors than regular continuous wave laser. This study aimed to assess whether subthreshold laser causes a long-term damage to the retinal structures, as demonstrated by spectral-domain optical coherence tomography (SD-OCT), and to evaluate the change in the axial diameter of ret...

PURPOSE To assess the effect of hemodialysis on retinal and choroidal thicknesses using spectral-domain optical coherence tomography (SD-OCT). METHODS In this prospective interventional study, 25 hemodialysis patients (17 male, 8 female) were enrolled. All participants underwent high-speed, high-resolution SD-OCT (λ=840 mm; 26.000 A-scans/s; 5 µm resolution) before and after hemodialysis. Cho...

BACKGROUND Patients with Alzheimer's disease (AD) demonstrate the narrowing of retinal veins and decreased retinal venous blood flow compared with control subjects. We assessed whether these abnormalities are present in patients with mild cognitive impairment (MCI). METHODS After the determination of the global clinical dementia rating, 52 subjects (10 AD, 21 MCI, and 21 normal controls) unde...

BACKGROUND Retinopathy of prematurity (ROP) is a condition of abnormal retinal vascular development (RVD) in premature infants. Fluorescein angiography (FA) has depicted phases (early, mid, late, and mature) of RVD in oxygen-induced retinopathy (OIR) mice. We sought to establish the relationship between retinal structural and vascular changes using simultaneous FA and spectral domain optical co...

PURPOSE To describe the efficacy and safety of a single intravitreal implant of dexamethasone in a patient affected by radiation maculopathy due to proton beam radiotherapy for choroidal melanoma. PATIENT AND METHODS Retrospective data of a 46-year-old woman treated with a single intravitreal injection of dexamethasone for radiation maculopathy due to proton beam radiotherapy were collected. ...

Purpose The purpose of this study was to measure retinal vessel caliber and to examine early changes in macular thickness using optical coherence tomography (OCT). We evaluated to what extend vascular caliber and macular thickness differed between patients with type 2 diabetes mellitus without diabetic retinopathy compared with healthy individuals. Methods 26 diabetic patients without diabeti...

CONTEXT Cortisol has been suggested as a risk factor for choroidal thickening, which may lead to retinal changes. OBJECTIVE To compare choroidal thickness measurements using optical coherence tomography (OCT) in patients with endogenous active Cushing's syndrome (CS) and to evaluate the occurrence of retinal abnormalities in the same group of patients. DESIGN Cross-sectional study. SETTIN...