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Asteroid Hyalosis and Synchysis Scintillans

  • Mariana Batista Gonçalves
Chapter
Part of the Retina Atlas book series (RA)

Abstract

Vitreous opacities may be the result of developmental abnormalities, degenerative processes, inflammation, intraocular bleeding, and trauma. Among the vitreous opacities, we can mention asteroid hyalosis (AH) and synchysis scintillans (SC). AH is characterized by the presence of small spherical opacities of yellowish white color, composed of lipids, calcium and phosphorus. This condition is usually unilateral and more common in men. SC is characterized by the presence of highly refractive vitreous opacities, flattened, brown or gold colored, composed of cholesterol. This condition occurs at an earlier age than asteroid hyalosis and is usually bilateral. Both AH and SC are diagnosed through ophthalmologic examination, but complementary exams provide additional information on the retinal condition. The treatment of these opacities is not usually necessary and vitrectomy is performed in the presence of symptoms or to facilitate the monitoring and treatment of other retinal diseases.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Mariana Batista Gonçalves
    • 1
  1. 1.Department of OphthalmologySão Paulo Federal UniversitySão PauloBrazil

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