The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform

Yanting Chen - One of the best experts on this subject based on the ideXlab platform.

  • macular thickness measurements in Central Retinal Artery occlusion by optical coherence tomography
    Retina-the Journal of Retinal and Vitreous Diseases, 2011
    Co-Authors: Sanni Chen, Jiunnfeng Hwang, Yanting Chen
    Abstract:

    Purpose: To evaluate the structural features of Central Retinal Artery occlusion by means of optical coherence tomography. Methods: Eleven consecutive patients with acute Central Retinal Artery occlusion and at least 3-month follow-up were enrolled prospectively in this study. The main outcome measures included best-corrected visual acuity, foveal thickness (FT), and total macular volume by optical coherence tomography. Results: Five male and six female patients with Central Retinal Artery occlusion were examined. The mean age was 71.2 ± 8.7 years (range, 59-83 years). Mean FT and total macular volume were 195 ± 26 μm and 6.41 ± 0.33 mm3, respectively, in normal fellow eyes, increased to 299 ± 76 μm and 7.90 ± 0.93 mm3, respectively, at initial examination and declined to 167 ± 30 μm and 4.85 ± 0.68 mm3, respectively, at 3-month follow-up. Mean reduction in FT was 181 ± 61 μm (range, 120-270 μm) in eyes with poor visual outcome and 43 ± 25 μm (range, 15-74 μm) in eyes with fair visual outcome. Statistical analysis revealed that the relationships among visual prognosis and initial FT and initial total macular volume were not significant. Conclusion: Optical coherence tomography provides special information about Central Retinal Artery occlusion. There were marked and variable changes in FT and total macular volume. Limited reduction in macular thickness might indicate a fair visual outcome.

Bernhard A Sabel - One of the best experts on this subject based on the ideXlab platform.

  • visual hallucinations during visual recovery after Central Retinal Artery occlusion
    JAMA Neurology, 2006
    Co-Authors: Bernhard A Sabel
    Abstract:

    Background Charles Bonnet syndrome is characterized by complex, formed visual hallucinations that occur in patients without psychiatric disorders. To the best of our knowledge, it has not been described following Central Retinal Artery occlusion. Objective To describe 2 patients who experienced formed visual hallucinations characteristic of Charles Bonnet syndrome after sudden, severe visual loss precipitated by Central Retinal Artery occlusion. Patients Two patients, aged 77 and 63 years respectively, experienced sudden deterioration of vision following Central Retinal Artery occlusion. Formed visual hallucinations occurred in patient 1 six days later and in patient 2 two days later. Results The hallucinations appeared both within and at the borders of the patients' residual intact visual fields. They occurred during periods when the patients experienced partial visual recovery associated with enlargement of their visual fields. The visual recovery and hallucinations both ceased at the same time. Conclusions We propose that the hallucinations are likely the result of deafferentation and their occurrence during visual recovery suggests that they are a correlate of visual system plasticity.

Sanni Chen - One of the best experts on this subject based on the ideXlab platform.

  • macular thickness measurements in Central Retinal Artery occlusion by optical coherence tomography
    Retina-the Journal of Retinal and Vitreous Diseases, 2011
    Co-Authors: Sanni Chen, Jiunnfeng Hwang, Yanting Chen
    Abstract:

    Purpose: To evaluate the structural features of Central Retinal Artery occlusion by means of optical coherence tomography. Methods: Eleven consecutive patients with acute Central Retinal Artery occlusion and at least 3-month follow-up were enrolled prospectively in this study. The main outcome measures included best-corrected visual acuity, foveal thickness (FT), and total macular volume by optical coherence tomography. Results: Five male and six female patients with Central Retinal Artery occlusion were examined. The mean age was 71.2 ± 8.7 years (range, 59-83 years). Mean FT and total macular volume were 195 ± 26 μm and 6.41 ± 0.33 mm3, respectively, in normal fellow eyes, increased to 299 ± 76 μm and 7.90 ± 0.93 mm3, respectively, at initial examination and declined to 167 ± 30 μm and 4.85 ± 0.68 mm3, respectively, at 3-month follow-up. Mean reduction in FT was 181 ± 61 μm (range, 120-270 μm) in eyes with poor visual outcome and 43 ± 25 μm (range, 15-74 μm) in eyes with fair visual outcome. Statistical analysis revealed that the relationships among visual prognosis and initial FT and initial total macular volume were not significant. Conclusion: Optical coherence tomography provides special information about Central Retinal Artery occlusion. There were marked and variable changes in FT and total macular volume. Limited reduction in macular thickness might indicate a fair visual outcome.

Jiunnfeng Hwang - One of the best experts on this subject based on the ideXlab platform.

  • macular thickness measurements in Central Retinal Artery occlusion by optical coherence tomography
    Retina-the Journal of Retinal and Vitreous Diseases, 2011
    Co-Authors: Sanni Chen, Jiunnfeng Hwang, Yanting Chen
    Abstract:

    Purpose: To evaluate the structural features of Central Retinal Artery occlusion by means of optical coherence tomography. Methods: Eleven consecutive patients with acute Central Retinal Artery occlusion and at least 3-month follow-up were enrolled prospectively in this study. The main outcome measures included best-corrected visual acuity, foveal thickness (FT), and total macular volume by optical coherence tomography. Results: Five male and six female patients with Central Retinal Artery occlusion were examined. The mean age was 71.2 ± 8.7 years (range, 59-83 years). Mean FT and total macular volume were 195 ± 26 μm and 6.41 ± 0.33 mm3, respectively, in normal fellow eyes, increased to 299 ± 76 μm and 7.90 ± 0.93 mm3, respectively, at initial examination and declined to 167 ± 30 μm and 4.85 ± 0.68 mm3, respectively, at 3-month follow-up. Mean reduction in FT was 181 ± 61 μm (range, 120-270 μm) in eyes with poor visual outcome and 43 ± 25 μm (range, 15-74 μm) in eyes with fair visual outcome. Statistical analysis revealed that the relationships among visual prognosis and initial FT and initial total macular volume were not significant. Conclusion: Optical coherence tomography provides special information about Central Retinal Artery occlusion. There were marked and variable changes in FT and total macular volume. Limited reduction in macular thickness might indicate a fair visual outcome.

Robert B. Bhisitkul - One of the best experts on this subject based on the ideXlab platform.

  • Correction-Spontaneous Central Retinal Artery Occlusion in Hemoglobin SC disease1
    American Journal of Ophthalmology, 2000
    Co-Authors: Laura C Fine, Velimir Petrovic, Alexander R. Irvine, Robert B. Bhisitkul
    Abstract:

    Abstract PURPOSE: To describe a case of spontaneous Central Retinal Artery occlusion in a young man with hemoglobin sickle cell disease. METHOD: Case report. RESULTS: A 31-year-old African-American man with a history of hemoglobin SC (sickle C) disease developed sudden painless loss of vision in the right eye. Medical history was remarkable for the recent history of a mild sickle crisis, but no other systemic illness or contributing factors. Central Retinal Artery occlusion was diagnosed with Retinal whitening, cherry red spot, and delayed arteriovenous transit on fluorescein angiography. Over the ensuing week, the patient had visual recovery to 20/60 in the absence of therapeutic intervention. CONCLUSION: Central Retinal Artery occlusion has been reported in sickle cell hemoglobinopathies (ie, SS, S-thal, sickle trait, and SC), but the association with double heterozygous SC disease is rare. Most reports have described additional contributing factors, such as trauma or concomitant systemic illness, to help account for the Central Retinal Artery occlusion. The present case suggests that SC disease alone is sufficient for the development of Central Retinal Artery occlusion.

  • Spontaneous Central Retinal Artery occlusion in hemoglobin sickle cell disease.
    American Journal of Ophthalmology, 2000
    Co-Authors: Laura C Fine, Velimir Petrovic, Alexander R. Irvine, Robert B. Bhisitkul
    Abstract:

    Abstract PURPOSE: To describe a case of spontaneous Central Retinal Artery occlusion in a young man with hemoglobin sickle cell disease. METHOD: Case report. RESULTS: A 31-year-old African-American man with a history of hemoglobin sickle cell disease developed sudden painless loss of vision in the right eye. Medical history was remarkable for the recent history of a mild painful crisis, but no other systemic illness or contributing factors. Central Retinal Artery occlusion was diagnosed with Retinal whitening, cherry red spot, and delayed arteriovenous transit on fluorescein angiography. Over the ensuing week, the patient had visual recovery to 20/60 in the absence of therapeutic intervention. CONCLUSION: Central Retinal Artery occlusion has been reported in sickle cell hemoglobinopathies (ie, SS, S-thal, sickle trait, and sickle cell), but the association with sickle cell disease is rare. Most reports have described additional contributing factors, such as trauma or concomitant systemic illness, to help account for the Central Retinal Artery occlusion. The present case suggests that sickle cell disease alone is sufficient for the development of Central Retinal Artery occlusion.