Choroidal structure in subtypes of polypoidal choroidal vasculopathy determined by binarization of optical coherence tomographic images

2019 ◽  
Vol 47 (5) ◽  
pp. 631-637 ◽  
Author(s):  
Bing Liu ◽  
Xiongze Zhang ◽  
Lan Mi ◽  
Yuting Peng ◽  
Feng Wen
Keyword(s):  
Polypoidal Choroidal Vasculopathy ◽  
Optical Coherence ◽  
Tomographic Images ◽  
Choroidal Structure ◽  
Choroidal Vasculopathy

scholarly journals Polypoidal Choroidal Vasculopathy in Congolese Patients

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Nelly N. Kabedi ◽  
David L. Kayembe ◽  
Gloria M. Elongo ◽  
Jean-Claude Mwanza
Keyword(s):  
Optical Coherence Tomography ◽  
Indocyanine Green ◽  
Polypoidal Choroidal Vasculopathy ◽  
Indocyanine Green Angiography ◽  
Clinical Presentation ◽  
Case Series ◽  
Systemic Hypertension ◽  
Optical Coherence ◽  
Blurred Vision ◽  
Choroidal Vasculopathy

Purpose. Polypoidal choroidal vasculopathy (PCV) is a visually debilitating disease that mostly affects people of African and Asian heritage. Indocyanine green angiography (ICGA) is the recommended exploratory method for definitive diagnosis. The disease has been extensively described in Asians and Caucasians, but not in Africans. This study was conducted to document the clinical presentation and optical coherence tomography features of polypoidal choroidal vasculopathy (PCV) in Congolese patients. Methods. A prospective case series of patients with PCV was performed between January 2017 and June 2019. Routine ocular examination was performed including best corrected visual acuity measurement, slit-lamp examination, dilated direct fundoscopy, and spectral domain optical coherence tomography (OCT). The diagnosis was based on a combination of clinical and OCT signs. Results. Fourteen patients were diagnosed with PCV during this period. The average age was 64.7 ± 6.9 years. There were 8 females. Ten (71.4%) patients had systemic hypertension. Most patients (n = 9, 64.3%) had bilateral involvement. Blurred vision was the most common complaint (71.4%). The main clinical presentation was subretinal exudates, seen in 19 (82.6%) eyes of 11 (78.6%) patients and subretinal hemorrhage in 10 (43.5%) eyes. Macular localization was found in 16 eyes (69.5%) of 12 (85.7%) patients. Drusen were observed in 35.7% of the patients. On OCT imaging, thumb-like pigment epithelial detachment and subretinal exudation were the most frequent features, observed in 92.9% and 71.4% of the patients, respectively. Conclusions. PCV in Congolese patients showed features that are more similar to those observed in Caucasians. In this setting where indocyanine green angiography is not available, OCT facilitates the diagnosis of PCV.

IMPROVED VISUALIZATION OF POLYPOIDAL CHOROIDAL VASCULOPATHY LESIONS USING SPECTRAL-DOMAIN OPTICAL COHERENCE TOMOGRAPHY

Retina ◽  
2009 ◽  
Vol 29 (1) ◽  
pp. 52-59 ◽  
Author(s):  
YUMIKO OJIMA ◽  
MASANORI HANGAI ◽  
ATSUSHI SAKAMOTO ◽  
AKITAKA TSUJIKAWA ◽  
ATSUSHI OTANI ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Polypoidal Choroidal Vasculopathy ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Choroidal Vasculopathy
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