Joana Ferreira

ORCID: 0000-0002-2237-3962
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About
Contact & Profiles
Research Areas
  • Glaucoma and retinal disorders
  • Retinal Diseases and Treatments
  • Retinal Imaging and Analysis
  • Retinal and Optic Conditions
  • Ocular Diseases and Behçet’s Syndrome
  • Systemic Lupus Erythematosus Research
  • Corneal surgery and disorders
  • Retinal Development and Disorders
  • Intraocular Surgery and Lenses
  • Cerebral Venous Sinus Thrombosis
  • Cerebrovascular and Carotid Artery Diseases
  • Retinal and Macular Surgery
  • Ophthalmology and Eye Disorders
  • Ophthalmology and Visual Impairment Studies
  • Drug-Induced Ocular Toxicity
  • Corneal Surgery and Treatments
  • Ocular Surface and Contact Lens
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Neurological Disorders and Treatments
  • Peripheral Neuropathies and Disorders
  • Long-Term Effects of COVID-19
  • Intraoperative Neuromonitoring and Anesthetic Effects
  • Hemoglobin structure and function
  • Acute Ischemic Stroke Management
  • Neonatal Health and Biochemistry

University of Lisbon
2020-2025

Centro Hospitalar Lisboa Norte
2020-2025

Administração Regional de Saúde de Lisboa e Vale do Tejo
2024-2025

Hospital CUF Descobertas
2018-2024

Hospital do Desterro
2018-2024

Universidade Nova de Lisboa
2016-2024

Instituto Politécnico de Lisboa
2020-2021

CUF Porto Hospital
2020-2021

University of Minho
2021

Centro Hospitalar de Lisboa Central
2013-2020

Purpose: To compare the thickness of all retinal layers between a nondiabetic group and diabetic patients without retinopathy (DR). Methods: Cross-sectional study, in which subjects underwent an ophthalmic examination including optical coherence tomography. After automatic segmentation, each layer (eight separate overall thickness) was calculated nine Early Treatment Diabetic Retinopathy Study (ETDRS) areas. The choroidal (CT) also measured at five locations. Generalized additive regression...

10.1167/iovs.16-20215 article EN cc-by-nc-nd Investigative Ophthalmology & Visual Science 2016-11-28

To compare choroidal thickness (CT) between diabetic patients without retinopathy and a nondiabetic group. explore how CT relates to disease duration, mean arterial pressure, glycemia, glycosylated hemoglobin, intraocular ocular pulse amplitude.Choroidal was assessed using spectral-domain optical coherence tomography enhanced depth mode at 13 locations (subfoveal 3 measurements 500 μm apart in 4 directions-nasal, temporal, superior, inferior). Linear regression models were used.One hundred...

10.1097/iae.0000000000001582 article EN Retina 2017-03-07

The purpose of this study was to measure and compare macular choroidal thickness (CT) between patients with mild Alzheimer's disease (AD), without AD, elderly patients.CT measured manually in 13 locations at 500-μm intervals a horizontal vertical section from the fovea. Linear regression models were used analyze data.Fifty diagnosis AD (73.1 years), 152 (71.03 50 (82.14 years) included. In patients, CT significantly thinner all (P < .001-comparing age-match group), comparing group, more...

10.1016/j.dadm.2017.03.004 article EN cc-by-nc-nd Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring 2017-01-01

There are significant discrepancies in the optic nerve sheath diameter (ONSD) reported literature. We aimed to determine ultrasonographic imaging features of ONSD and ophthalmic vessels a healthy population, using standardized protocol, estimate effect demographics positioning changes on measurements. measured mean values supine sitting position Doppler parameters ophthalmic, central retinal short posterior ciliary arteries. Inter-observer reliability was assessed intraclass correlation...

10.1186/s13089-025-00403-x article EN cc-by The Ultrasound Journal 2025-01-16

Aims/Purpose: Report results of a novel AI‐powered population‐level glaucoma screening protocol. Methods: Individuals aged 55‐65 were invited for in primary‐care setting. Screening involved disc‐centered fundus photography and intraocular pressure (IOP) measurement. Glaucoma risk was assessed by an AI tool, MONA G‐Risk, using the images. A positive result defined either score higher than 0.73 (range 0‐1) or IOP ≥24mmHg. Participants with referred to clinic further tests, including OCT...

10.1111/aos.17105 article EN Acta Ophthalmologica 2025-01-01

To analyze the retinal ganglion cell layer (RGL) by optical coherence tomography (OCT) in toxic and nutritional optic neuropathy to correlate its thickness volume with functional damage.We conducted an observational cross-sectional study healthy subjects patients observed Neuro-Ophthalmology Department of Central Lisbon Hospital Center. Complete ophthalmologic examination, OCT (Heidelberg Spectralis), automated static perimetry were performed. Thickness macular RGL inner plexiform measured...

10.1097/wno.0000000000000229 article EN Journal of Neuro-Ophthalmology 2015-09-01

To evaluate ocular involvement in a cohort of systemic lupus erythematosus (SLE) patients tertiary referral center and to compare the results with existing literature.Patients underwent complete ophthalmological evaluation, including visual acuity, slit-lamp examination, fluorescein staining, Schirmer-I test, Goldmann applanation tonometry, fundoscopy, 10-2 automated threshold fields, fundus autofluorescence spectral-domain optical coherence tomography screen for hydroxychloroquine (HCQ)...

10.1177/0961203320903080 article EN Lupus 2020-01-28

Background Discrepancies in the literature regarding optimal optic nerve sheath diameter (ONSD) cutoffs for intracranial pressure (ICP) necessitate alternative neuroimaging parameters to improve clinical management. Purpose To evaluate diagnostic accuracy of dimensions perineural subarachnoid space ratio, measured using US, predicting increased ICP. Materials and Methods In a prospective cohort study from April 2022 December 2023, patients with suspected ICP underwent US determine arachnoid...

10.1148/radiol.240114 article EN Radiology 2024-07-01

To compare choroidal thickness (CT) between patients with systemic lupus erythematosus (SLE) without ophthalmologic manifestations and a control group. study the effects in CT of disease duration, activity index, medication comorbidities.Cross-sectional where spectral-domain optical coherence tomography enhanced depth imaging was used to measure 13 locations, subfoveally at 500-µm intervals along horizontal vertical section from fovea. Linear regression models were used.Sixty-eight SLE fifty...

10.2147/opth.s219347 article EN cc-by-nc Clinical ophthalmology 2019-08-01

Nonarteritic anterior ischemic optic neuropathy (NA-AION) is the most common nonglaucomatous in adults over 50 years of age. It usually related to cardiovascular risk factors. The primary objective this study was evaluate choroidal thickness patients with chronic NA-AION, and secondary macular these patients. This cross-sectional compared two groups: group 1 included 20 eyes 2 31 healthy controls. In both groups, measured using enhanced depth imaging program Heidelberg Spectralis® optical...

10.3109/01658107.2014.926943 article EN Neuro-Ophthalmology 2014-06-27

The purpose of this study is to evaluate the macular ganglion cell layer (GCL) and peripapillary retinal nerve fibre (RNFL) thickness in patients with unilateral posterior cerebral artery (PCA) ischaemic lesions using spectral-domain optical coherence tomography (SD-OCT). A prospective, case-control PCA lesion was conducted neuro-ophthalmology clinic Centro Hospitalar Lisboa Central. Macular SD-OCT scans were performed both eyes each patient. Twelve (stroke group) 12 healthy normal controls...

10.3109/01658107.2015.1122814 article EN Neuro-Ophthalmology 2016-01-02

Systemic lupus erythematosus (SLE) is a chronic, autoimmune and multisystemic disease. Recent studies with functional structural magnetic resonance imaging cognitive tests report an unexpectedly high frequency of central nervous system involvement, even in patients asymptomatic SLE. The purpose this study was to identify early signs retinal neurodegeneration by comparing the thickness peripapillary nerve fiber layer (pRNFL) all macular layers between SLE without ophthalmologic manifestations...

10.1186/s40942-020-00219-y article EN cc-by International Journal of Retina and Vitreous 2020-04-20

Purpose/Aim: Our study aims to evaluate corneal subbasal nerve plexus morphology by in vivo confocal microscopy (CCM) Multiple Sclerosis (MS) patients and explore its potential ability distinguish between MS healthy subjects.Materials methods: Cross-sectional study, including 60 22 subjects. Expanded Disability Status Scale (EDSS) was used assess neurological disability. All participants underwent full ophthalmology evaluation, CCM optical coherence tomography (OCT). Corneal fibre density...

10.1080/02713683.2021.1904509 article EN Current Eye Research 2021-03-18
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