PDF(Pubmed)
Abstract：
OBJECTIVE: Visual snow syndrome is a debilitating neurological condition. A comprehensive eye examination may not detect any abnormalities in this condition. Presently the condition is recognized only through the history elicited. Hence, it becomes important to understand the presenting complaints and profile of these patients. A retrospective study at a tertiary eye care center was undertaken to achieve this goal.
METHODS: Electronic medical records of patients presenting to a Binocular Vision and Orthoptics clinic were reviewed. Records of the patients containing keywords such as \"light sensitivity, shadowing, visual snow, multiple images, and night vision\" were retrieved and inspected. Those matching the diagnostic criteria of visual snow syndrome were included in the study.
RESULTS: A total of 33 patients (average age ± standard deviation: 29.7 ± 9.8 years) were identified. Majority of the patients were males (69%). All the patients had logMAR visual acuity 0 or better in each eye. The most prominent (84.4%) presenting symptom was palinopsia (or afterimage or trailing). About 34.4% complained of floaters (including snow-like appearance). More than half (54.6%) of the patients also had binocular dysfunction.
CONCLUSIONS: Visual snow syndrome is a relatively new condition on the rise, with unclear pathology. The symptoms of this condition can easily be confused with regular floaters or black spots seen in vitreous and retinal pathologies. In the absence of such pathology, an elaborate history should be elicited, and the distress of the patient should be acknowledged. The patient should also be reassured that this is not a blinding condition.
METHODS: Electronic medical records of patients presenting to a Binocular Vision and Orthoptics clinic were reviewed. Records of the patients containing keywords such as \"light sensitivity, shadowing, visual snow, multiple images, and night vision\" were retrieved and inspected. Those matching the diagnostic criteria of visual snow syndrome were included in the study.
RESULTS: A total of 33 patients (average age ± standard deviation: 29.7 ± 9.8 years) were identified. Majority of the patients were males (69%). All the patients had logMAR visual acuity 0 or better in each eye. The most prominent (84.4%) presenting symptom was palinopsia (or afterimage or trailing). About 34.4% complained of floaters (including snow-like appearance). More than half (54.6%) of the patients also had binocular dysfunction.
CONCLUSIONS: Visual snow syndrome is a relatively new condition on the rise, with unclear pathology. The symptoms of this condition can easily be confused with regular floaters or black spots seen in vitreous and retinal pathologies. In the absence of such pathology, an elaborate history should be elicited, and the distress of the patient should be acknowledged. The patient should also be reassured that this is not a blinding condition.
摘要：
目的：视觉雪综合征是一种使人衰弱的神经系统疾病。在这种情况下，全面的眼科检查可能无法检测到任何异常。目前，只有通过历史引起的情况才能认识到这种情况。因此，了解这些患者的投诉和概况变得很重要。为实现这一目标，在三级眼科护理中心进行了回顾性研究。
方法：回顾了到双目视觉和矫形诊所就诊的患者的电子病历。包含“光敏感度”等关键字的患者记录，阴影，视觉雪，多个图像,和夜视“被检索和检查。符合视觉雪花综合征诊断标准的纳入研究。
结果：共确定33例患者（平均年龄±标准差：29.7±9.8岁）。大多数患者为男性（69%）。所有患者每只眼睛的logMAR视力均为0或更好。出现症状的最突出（84.4％）是上视（或残像或拖尾）。约34.4％的人抱怨漂浮物（包括像雪一样的外观）。超过一半（54.6%）的患者也有双眼功能障碍。
结论：视觉雪综合征是一种相对较新的疾病，病理不清楚。这种情况的症状很容易与玻璃体和视网膜病变中看到的常规漂浮物或黑点混淆。在没有这种病理学的情况下，应该引出一段详细的历史，病人的痛苦应该得到承认。患者也应该放心，这不是致盲条件。
方法：回顾了到双目视觉和矫形诊所就诊的患者的电子病历。包含“光敏感度”等关键字的患者记录，阴影，视觉雪，多个图像,和夜视“被检索和检查。符合视觉雪花综合征诊断标准的纳入研究。
结果：共确定33例患者（平均年龄±标准差：29.7±9.8岁）。大多数患者为男性（69%）。所有患者每只眼睛的logMAR视力均为0或更好。出现症状的最突出（84.4％）是上视（或残像或拖尾）。约34.4％的人抱怨漂浮物（包括像雪一样的外观）。超过一半（54.6%）的患者也有双眼功能障碍。
结论：视觉雪综合征是一种相对较新的疾病，病理不清楚。这种情况的症状很容易与玻璃体和视网膜病变中看到的常规漂浮物或黑点混淆。在没有这种病理学的情况下，应该引出一段详细的历史，病人的痛苦应该得到承认。患者也应该放心，这不是致盲条件。
