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Posterior Vitreous Detachment


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Short course on the signs and symptoms of a posterior vitreous detachment (PVD) and its relationship to a retinal tear and a detached retina.

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Posterior Vitreous Detachment

  1. 1. Posterior Vitreous Detachment Common Cause of Floaters Randall V. Wong, M.D.
  2. 2. What is the Vitreous? <ul><li>The vitreous is the gel that fills most of the eye. </li></ul><ul><li>It contains about 94% water, but, like a jellyfish, has substance. </li></ul><ul><li>With time (aging), areas within the vitreous degenerate and become water. </li></ul>
  3. 3. A Posterior Vitreous Detachment Can Cause a Retinal Tear <ul><li>The vitreous separates from the surface of the retina </li></ul><ul><li>Floaters can develop </li></ul><ul><li>Is there a tear in the retina? </li></ul>
  4. 4. Posterior Vitreous Detachment Look for A Retinal Tear <ul><li>Examine within 48-72 hours of onset of symptoms of floaters </li></ul><ul><li>The chance of a retinal tear forming is highest within the first 6 weeks of symptoms </li></ul><ul><li>Re-examine 6 weeks after the initial onset of symptoms. Tears may be asymptomatic </li></ul>
  5. 5. A Retinal Tear and Retinal Detachment <ul><li>A retinal tear can cause a retinal detachment </li></ul>
  6. 6. A Retinal Tear No Retinal Detachment <ul><li>A retinal tear, without associated retinal detachment, may be treated with laser to prevent a retinal detachment from developing </li></ul>