Vitreomacular Interface Abnormalities - Green Club · Vitreomacular traction is a disorder of the...
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Vitreomacular Interface Abnormalities Vitreomacular traction (VMT) ● Vitreomacular traction is a disorder of the vitreoretinal interface ● With age, there is a sequential weakening of attachments between the vitreous and the internal limiting membrane of the retina, starting from the perifoveal region, superior and inferior vascular arcades, fovea, midperipheral retina and optic disc ● Anteroposterior traction is caused by an incomplete posterior vitreous detachment, where the vitreous presents an abnormal strong adhesion to me macula ● Macular traction results in morphological tissue alterations and consequent decline of visual functions ● Based on the diameter of vitreous attachment to the macular surface measured by an OCT, the International Vitreomacular Traction Study Group subclassifies VMT into: • focal VMT 1500 µm or less • broad VMT 1500 µm or more Video posterior hyaloid membrane vitreomacular traction This image was originally published in the Retina Image Bank. Michael P. Kelly, FOPS. Retina Image Bank. Year 2013; Image Number 5141. © the American Society of Retina Specialists. This image was originally published in the Retina Image Bank. Virgilio Morales-Canton, MD. Retina Image Bank. Year 2012; Image Number 938. © the American Society of Retina Specialists.
Transcript of Vitreomacular Interface Abnormalities - Green Club · Vitreomacular traction is a disorder of the...
Vitreomacular Interface AbnormalitiesVitreomacular traction (VMT)● Vitreomacular traction is a disorder of the vitreoretinal
interface
● With age, there is a sequential weakening of attachments between the vitreous and the internal limiting membrane of the retina, starting from the perifoveal region, superior and inferior vascular arcades, fovea, midperipheral retina and optic disc
● Anteroposterior traction is caused by an incomplete posterior vitreous detachment, where the vitreous presents an abnormal strong adhesion to me macula
● Macular traction results in morphological tissue alterations and consequent decline of visual functions
● Based on the diameter of vitreous attachment to the macular surface measured by an OCT, the International Vitreomacular Traction Study Group subclassifies VMT into:• focal VMT 1500 µm or less• broad VMT 1500 µm or more
Video�
posterior hyaloid membranevitreomacular tractionThis image was originally published in the Retina Image Bank. Michael P. Kelly, FOPS. Retina Image Bank. Year 2013; Image Number 5141. © the American Society of Retina Specialists.
This image was originally published in the Retina Image Bank. Virgilio Morales-Canton, MD. Retina Image Bank. Year 2012; Image Number 938. © the American Society of Retina Specialists.
