| The Characteristics of Non-Retinal Lesions in the Ultra-Wide Field Scanning Laser Ophthalmoscope Image. |
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Bo Ram Lee, Jae Moon Ahn, Jae Ryung Oh |
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Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea. ojr4991@yahoo.co.kr |
| 초광각 주사레이저검안경 영상에 나타나는 망막 외 병변의 특성 |
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이보람⋅안재문⋅오재령 |
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고려대학교 의과대학 안과학교실 |
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Received: 30 April 2015 • Revised: 25 June 2015 • Accepted: 22 September 2015 |
| Abstract |
PURPOSE
To evaluate various types and; characteristics of non-retinal lesions associated with ultra-wide field scanning laser ophthalmoscope images. METHODS: This retrospective study included 139 eyes of 139 patients with non-retinal lesions observed on color images obtained using Optomap 200Tx (Optos PLC, Dunfermline, Scotland, UK). The non-retinal lesion is a hyperreflective or hyporeflective shadow due to anterior segment of the eye or vitreous except the retina. Types and characteristics of red laser separation, green laser separation and autofluorescence images of non-retinal lesions were evaluated. RESULTS: All non-retinal lesions in images were categorized into 2 groups according to the location of non-retinal lesions. The anterior non-retinal lesions group included corneal opacity, cataract and posterior capsular opacity. The posterior non-retinal lesions group included asteroid hyalosis, posterior vitreous detachment, vitreous opacity and vitreous hemorrhage. Anterior non-retinal lesions were more often hyporeflective in red and green laser separation images (p < 0.001). Posterior non-retinal lesions were more often hyperreflective in green laser separation images and hyporeflective in red laser separation images (p < 0.001). CONCLUSIONS: Ultra-wide field scanning laser ophthalmoscope images can frequently have various shadows from anterior or posterior lesions of the eye. These shadows show a difference in reflectivity depending on their origins. To understand the difference helps in the interpretation of the fundus images. |
| Key Words:
Non-retinal lesion;Optomap;Scanning laser ophthalmoscope |
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