Choroidal Thickness Evaluation Before and After Hemodialysis in Patients With and Without Diabetes

2015 ◽  
Vol 56 (11) ◽  
pp. 6534 ◽  
Author(s):  
Akihiro Ishibazawa ◽  
Taiji Nagaoka ◽  
Yoshiro Minami ◽  
Manabu Kitahara ◽  
Takanori Yamashita ◽  
...  
Keyword(s):  
Choroidal Thickness ◽  
Before And After ◽  
Thickness Evaluation

Impact of Valsalva Maneuver on Central Choroid, Central Macula, and Disk Fiber Layer Thickness Among High Myopic and Hyperopic Patients

2016 ◽  
Vol 27 (3) ◽  
pp. 331-335 ◽  
Author(s):  
Isil Kurultay-Ersan ◽  
Sinan Emre
Keyword(s):  
Axial Length ◽  
Choroidal Thickness ◽  
Valsalva Maneuver ◽  
Significant Negative Correlation ◽  
Macular Thickness ◽  
Enhanced Depth Imaging ◽  
Central Macular Thickness ◽  
Fiber Layer ◽  
Rnfl Thickness ◽  
Before And After

Purpose To evaluate the alterations in mean central choroidal, central macular, and disk retinal nerve fiber layer (RNFL) thickness measured by optical coherence tomography (OCT) during Valsalva maneuver among patients with high refractive errors. Methods A total of 60 high myopic (≥-6.0 D) and 50 high hyperopic (≥ + 3.0 D) eyes of 58 patients aged 19-65 years with visual acuity of 20/20 and without any ophthalmologic or systemic diseases were evaluated by OCT before and after the Valsalva maneuver. The choroidal thickness was measured with enhanced depth imaging OCT method. Central macular thickness, disk RNFL thickness, and axial length were also assessed. Results Mean choroidal thickness increased significantly from 275.0 ± 27.2 μm at rest to 279.8 ± 31.6 μm after Valsalva maneuver in high myopic patients, and from 308.2 ± 27.3 μm to 313.6 ± 28.5 μm in high hyperopic patients (p<0.01 for each). A significant negative correlation of the choroidal thickness was noted with axial length (r = -0.509, p<0.01) and age (r = -0.224, p = 0.01) in the overall study population. Mean central macular thickness was 242.9 ± 44.4 μm and 254.0 ± 22.8 μm, while mean disk RNFL thickness was 81.6 ± 12.4 μm and 98.4 ± 13.3 μm in high myopic and hyperopic patients, respectively. Valsalva maneuver was not associated with significant change in central macular or disk RNFL thickness. Conclusions Significant association of Valsalva maneuver with an increase in choroidal thickness was noted among patients with high degree of myopia and hyperopia. Our findings emphasize the likelihood of increase in choroidal volume due to venous distension to be responsible for the increase observed in choroidal thickness after Valsalva maneuver.

scholarly journals Does pregnancy influence eye parameters? Assessment of choroidal thickness using EDI-OCT before and after labour depending on the way of delivery method

2020 ◽  
Vol 91 (11) ◽  
pp. 668-673
Author(s):  
Karol Taradaj ◽  
Tomasz Ginda ◽  
Piotr Maciejewicz ◽  
Barbara Suchonska ◽  
Miroslaw Wielgos ◽  
...  
Keyword(s):  
Choroidal Thickness ◽  
Delivery Method ◽  
Before And After ◽  
The Way

scholarly journals Choroidal Volume Evaluation after Photodynamic Therapy Using New Optical Coherence Tomography Imaging Algorithm

2021 ◽  
Vol 14 (11) ◽  
pp. 1140
Author(s):  
Miki Sato-Akushichi ◽  
Shinji Ono ◽  
Gerd Klose ◽  
Youngseok Song
Keyword(s):  
Photodynamic Therapy ◽  
Choroidal Thickness ◽  
Central Area ◽  
Chronic Central Serous Chorioretinopathy ◽  
Temporal Area ◽  
Short Period ◽  
Before And After ◽  
History Of ◽  
Optical Coherence Tomography Imaging ◽  
Choroidal Volume

To evaluate choroidal volume and thickness changes after photodynamic therapy (PDT) for chronic central serous chorioretinopathy (CSC). Chronic CSC eyes with a history of PDT were selected. Average choroidal volume, average choroidal thickness, the maximum and minimum choroidal thickness of the macula irradiated area and peripheral non-irradiated areas before and after one and three months of treatment were examined. A total of 14 patients with chronic CSC and 9 controls without any eye pathology were enrolled. The mean choroidal volume in CSC before and, and after one and three months of treatment were 2.36 (standard deviation: 0.70), 1.90 (0.69), 1.86 (0.66) mm3 for the central area, 1.25 (0.38), 1.14 (0.35), 1.13 (0.34) mm3 for superior nasal area, 1.47 (0.41), 1.28 (0.43), 1.26 (0.43) mm3 for superior temporal area, 1.07 (0.49), 0.95 (0.38), 0.93 (0.35) mm3 for inferior nasal area, 1.17 (0.38), 1.04 (0.32), 1.03 (0.33) mm3 for inferior temporal area. This study revealed the choroidal volume changes in a short period after PDT and a decrease in unirradiated choroidal volume was also shown after the treatment. The algorithm provided on the ARI Network enables to evaluate the choroidal changes quantitatively and qualitatively.

scholarly journals Impact of Carotid Endarterectomy on Choroidal Thickness and Volume in Enhanced Depth Optical Coherence Tomography Imaging

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Elżbieta Krytkowska ◽  
Monika Masiuk ◽  
Miłosz P. Kawa ◽  
Aleksandra Grabowicz ◽  
Paweł Rynio ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Endarterectomy ◽  
Choroidal Thickness ◽  
Vascular Tissue ◽  
Smoking Status ◽  
Internal Carotid Artery Stenosis ◽  
Enhanced Depth Imaging ◽  
Optical Coherence ◽  
Asymptomatic Patients ◽  
Before And After

Purpose. Carotid endarterectomy (CEA) is considered an effective therapeutic method for improving ocular circulation. The choroid is a predominantly vascular tissue; thus, systemic and local vascular alterations may influence its morphology and function. The aim of the current study was to analyse changes in choroidal thickness and volume in patients with significant internal carotid artery stenosis (ICAS) before and after unilateral CEA. Methods. The 42 eyes of the 21 asymptomatic patients included in the study were divided into two groups: those ipsilateral (EIE) and those contralateral (ECE) to CEA. All participants underwent a complete ophthalmologic examination, including enhanced depth imaging-optical coherence tomography (EDI-OCT). A comparative analysis of subfoveal thickness (CT) and choroidal volume (CV) measured in nine Early Treatment of Diabetic Retinopathy Study (ETDRS) subfields at baseline, on the 2nd day after CEA, and in the 3rd month after CEA was performed. Results. In the EIE and ECE groups, no significant differences in either CT or CV values before and on the 2nd day after the CEA were observed. In the EIE group, a significant increase in CT and CV in the 3rd month after CEA compared to baseline was noted in the specific ETDRS region. Changes in CT and CV after surgery were positively correlated with the participants’ physical activity status and diastolic blood pressure and negatively correlated with the participants’ age and smoking status. Additionally, the analysis of changes in CV after CEA showed a positive correlation between the EIE and ECE groups. Conclusions. CT and CV fluctuations in the central and perifoveal areas visualized with EDI-OCT enabled the observation of the processes of tissue adaptation to variable blood flow conditions.

scholarly journals The effect of silicone oil tamponade on retinal layers and choroidal thickness in patients with rhegmatogenous retinal detachment: a systematic review and meta-analysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Heshmatollah Ghanbari ◽  
Farzan Kianersi ◽  
Alireza Jamshidi Madad ◽  
Alireza Dehghani ◽  
Alireza Rahimi ◽  
...  
Keyword(s):  
Retinal Detachment ◽  
Choroidal Thickness ◽  
Rhegmatogenous Retinal Detachment ◽  
Silicone Oil ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Subfoveal Choroidal Thickness ◽  
Retinal Layers ◽  
Significant Difference ◽  
Before And After

Abstract Background To evaluate the effects of intravitreal silicone oil (SO) on the retinal and choroidal thickness in eyes with rhegmatogenous retinal detachment (RRD). Methods A literature search was performed in Web of Science, Scopus, ProQuest, Embase, Clinical Key, Science Direct, Cochrane Library, and Springer, as well as Persian databases, including IranDoc, MagIran, SID, MOH thesis, and MOH articles until June 2020. Two reviewers independently searched and extracted the data. Results Sixteen studies (n = 391) met the inclusion criteria. The meta-analysis showed that the SO tamponade could significantly reduce the central macular thickness (CMT) in patients with RRD as compared to gas tamponade WMD = − 14.91; 95% CI: − 22.23, − 7.60; P < 0.001, I2 = 71%). No significant change was found in CMT between the eye with SO tamponade (after SO removal) and the fellow healthy eye in patients with RRD (WMD = − 3.52; 95% CI: − 17.63, 10.59; I2 = 68.6%). Compared to the preoperative stage, the SO tamponade could significantly reduce the subfoveal choroidal thickness in patients with RRD (WMD = − 18.67, 95% CI: − 30.07, − 1.28; I2 = 80.1%). However, there was no significant difference in the subfoveal choroidal thickness before and after SO removal (WMD = − 1.13, 95% CI: − 5.97, 3.71; I2 = 87.6%). Conclusion The SO tamponade had a significant effect on the reduction of retinal layers and the subfoveal choroidal thickness.

Evaluation of choroidal thickness in children with acute asthma attack by optical coherence tomography

2021 ◽  
pp. 112067212110393
Author(s):  
Isil Kurultay ◽  
Ozlem Sancakli
Keyword(s):  
Optical Coherence Tomography ◽  
Choroidal Thickness ◽  
Post Treatment ◽  
Control Group ◽  
Healthy Children ◽  
Optical Coherence ◽  
Asthma Attack ◽  
Before And After ◽  
Children With Asthma ◽  
The Mean

Objective: To evaluate the change in central choroidal thickness in children with asthma attack before and after treatment with β2 agonists. Materials and methods: About 100 eyes of 50 patients (5–17 years old) with visual acuity of 20/20 who had no retinal, choroidal, and systemic comorbidity were examined by enhanced depth optical coherence tomography (EDI-OCT) before and after asthma attack treatment. Sixty eyes of 30 healthy children of similar age and gender were evaluated as the control group. The central choroidal thickness, peak expiratory flow (PEF), forced expiratory volume 1(FEV1), oxygen saturation, and heart rate were evaluated. Results: The mean age of the patients was 9.2 ± 3.1 years, and the mean saturation values of patients was 97.2 ± 1.3 before treatment, and it increased to 98.3 ± 0.9 after treatment with a statistically significant difference. The mean FEV1 values were 80.8 ± 15.2 before, and 92.7 ± 12.9 after the treatment and PEF values were 75.9 ± 18.6 before and 89.3 ± 18.9 after treatment. This differences were statistically significant ( p < 0.001). The average choroidal thickness before the treatment were 310.4 ± 34.2 μm and decreased to 302.7 ± 34.4 μm after the treatment, this decrease was statistically significant ( p < 0.001). The mean choroidal thickness of the control group was 303.0 ± 7.3 μm and compared to the pre-treatment and post-treatment values, it was more similar to the post-treatment values, although there was no statistically difference. Conclusion: In our study, it was shown that choroidal thickness was significantly reduced in children with asthma who received attack treatment with β2 agonists, and it was similar to the control group after the treatment.

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