All Articles from Guido Di Marzio -Optical Coherence Tomography News

Articles from Guido Di Marzio

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1. Cone Dystrophies: An Optical Coherence Tomography Angiography Study
  
  Explore MDPI Open Access Journals Platform May 21 2020 Ophthalmology
  
  Background: This study investigates the relationship between retinal vascularization and macular function in patients with cone dystrophies (CDs). Methods: Twenty CD patients (40 eyes) and 20 healthy controls (20 eyes) were enrolled in this prospective case-control study. Patients underwent full ophthalmological examination, microperimetry, full-field, pattern and multifocal electroretinogram (ERG, PERG, mfERG) and optical coherence tomography angiography (OCTA). Main outcome measures were as follows: foveal and parafoveal inner and outer retinal thickness; microperimetry sensitivity in the central 4° and 8°, ERG b wave amplitudes and peak times, PERG P50 and N95 amplitudes and latencies, and mfERG N1 to P1 amplitudes; and ...
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  Mentions: San Raffaele Scientfic Institute
2. Functional and Structural Reliability of Optic Nerve Head Measurements in Healthy Eyes by Means of Optical Coherence Tomography Angiography
  
  Explore MDPI Open Access Journals Platform Jan 25 2020 Ophthalmology
  
  Background and Objectives : the aim of the study was to evaluate the repeatability and reproducibility of optical microangiography (OMAG)-based optical coherence tomography angiography (OCTA) in the optic nerve head (ONH) and radial peripapillary capillary (RPC) perfusion assessment of healthy eyes. Materials and Methods : in this observational study, a total of 40 healthy subjects underwent ONH evaluation, using an OMAG-based OCTA system at baseline (T 0 ), after 30 min (T 1 ), and after 7 days (T 2 ). The main outcome measures were the vessel density (VD) and flux index (FI) of the RPCs, as well as peri-papillary retinal nerve fibre ...
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3. Widefield Swept Source OCTA in Retinitis Pigmentosa
  
  Explore MDPI Open Access Journals Platform Jan 19 2020 Ophthalmology
  
  1) Background: To evaluate superficial capillary plexus (SCP), deep capillary plexus (DCP), choriocapillaris (CC), perfusion density (PD), and vessel length density (VLD) in macular and near/mid periphery regions in patients with retinitis pigmentosa (RP) using widefield swept source optical coherence tomography angiography (WSS-OCTA). (2) Methods: Twelve RP patients (20 eyes) and 20 age-matched subjects (20 eyes) were imaged with the SS-OCTA system (PLEX Elite 9000, Carl Zeiss Meditec Inc., Dublin, CA, USA). Quantitative analysis was performed in the macular and peripheral regions. The main outcome measures were SCP, DCP, CC, PD, and VLD in central and peripheral areas. (3 ...
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  Mentions: Carl Zeiss Meditec
4. Early retinal flow changes after vitreoretinal surgery in idiopathic epiretinal membrane using swept source optical coherence tomography angiography
  
  Explore MDPI Open Access Journals Platform Nov 29 2019 Ophthalmology
  
  (1) Background: The aim of this observational cross-sectional work was to investigate early retinal vascular changes in patients undergoing idiopathic epiretinal membrane (iERM) surgery using swept source optical coherence tomography angiography (SS-OCTA); (2) Methods: 24 eyes of 24 patients who underwent vitrectomy with internal limiting membrane (ILM) peeling were evaluated pre- and postoperatively using SS-OCTA system (PLEX Elite 9000, Carl Zeiss Meditec Inc., Dublin, CA, USA). For each eye, five 6x6-mm OCTA volume scans were acquired by two observers independently. The en face images of superficial capillary plexus (SCP) were then exported to imageJ and a semi-automated algorithm was used ...
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  Mentions: Carl Zeiss Meditec
5. Foveal avascular zone area and parafoveal vessel density measurements in different stages of diabetic retinopathy by optical coherence tomography angiography
  
  Explore 欢迎访问国际眼科杂志编辑部 Oct 28 2017 Ophthalmology
  
  AIM : To investigate foveal avascular zone (FAZ) and parafoveal vessel densities (PRVD) by means of optical coherence tomography angiography (OCTA) in diabetic patients with or without diabetic retinopathy (DR) and to assess the reproducibility of FAZ and PRVD measurements. METHODS : Sixty diabetic patients (60 eyes) with different stage of DR (graded according to the International Clinical Severity Scale for DR) and 20 healthy subjects underwent FAZ area and PRVD measurements using OCTA by two experienced examiners. FAZ area in all patients was also assessed using fluorescein angiography (FA). RESULTS : In subject with proliferative DR and with moderate-severe non proliferative DR ...
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6. The Role of Diagnostic Imaging Techniques in the Management of Retinal Detachment Due to Macular Hole in High Myopia
  
  Explore Ophthalmic Surgery, Lasers and Imaging Nov 26 2009 Ophthalmology
  
  After preoperative assessment revealed anomalous posterior vitreous detachment, a 75-year-old woman affected with retinal detachment due to macular hole was scheduled to undergo the posterior episcleral buckling procedure. Preoperative microperimetry showed unstable eccentric fixation with a dense scotoma within the central 8°. One month postoperatively, best-corrected visual acuity increased from 1.70 to 0.88 logarithm of the minimum angle of resolution. Ultrasonography and optical coherence tomography revealed the indentation of the posterior scleral profile due to the buckle. The retina appeared fully attached and a macular hole with flattened edges was still detectable. Microperimetry showed stable central fixation with ...
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