Purpose To examine the retinal vasculature in patients with obstructive sleep apnea-hypopnea syndrome (OSAS) and to determine the correlation between retinal vascularity and the severity of OSAS. Design Prospective, cross-sectional study. Methods Sixty-nine consecutive subjects who underwent polysomnography were enrolled. Patients were divided into three groups according to the severity of ...

PURPOSE To establish, using adaptive optics scanning laser ophthalmoscopy (AOSLO), that the retinal parafoveal capillary network is altered before the onset of diabetic retinopathy in adult patients with type 2 diabetes. METHODS AOSLO videos were acquired in the parafoveal region of one eye from control subjects and from patients with type 2 diabetes and no retinopathy. Detailed images of the...

BACKGROUND to assess vessel density of superficial capillary plexus (SCP), deep capillary plexus (DCP) and choriocapillaris (CC) in advanced Stargardt disease (STGD) using optical coherence tomography angiography (OCTA) and correlate these findings with macular function using pattern electroretinogram (PERG) and multifocal electroretinogram (mfERG). METHODS Twelve patients (24 eyes) with adva...

A cavernous pulmonary telangiectasis is a wide peripheral communication between a dilated, tortuous, thin-walled pulmonary artery and the corresponding pulmonary veins. It is part of a more or less generalized condition of telangiectasia in which small telangiectases are scattered in variable distribution and numbers in the lungs and elsewhere in the body. The striking appearance and obvious cl...

Parafoveal preprocessing is an important factor for efficient reading and, in eye-movement studies, is typically investigated by means of parafoveal masking: Valid previews are compared to instances in which masks prevent preprocessing. A long-held assumption was that parafoveal preprocessing, as assessed by this technique, only reflects facilitation (i.e., a preview benefit). Recent studies, h...

PURPOSE To analyze the correlation between morphological and functional results 12 months after epiretinal membrane (ERM) surgery. METHODS 31 eyes from 31 consecutive patients with metamorphopsia and best corrected visual acuity (BCVA) below 20/32 underwent a transconjunctival 23- gauge vitrectomy with ERM and internal limiting membrane peeling. Preoperatively and 3, 6 and 12 months postopera...

AIMS To investigate swept-source optical coherence tomography (OCT) angiography in the optic nerve head (ONH) and parafoveal regions in patients with multiple sclerosis (MS). METHODS Fifty-two MS eyes and 21 healthy control (HC) eyes were included. There were two MS subgroups: 38 MS eyes without an optic neuritis (ON) history (MS -ON), and 14 MS eyes with an ON history (MS +ON). The OCT image...