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Clinical science
Scientific reports
Peripapillary crescent enlargement in highly myopic eyes evaluated by fluorescein and indocyanine green angiography
  1. K Yasuzumi,
  2. K Ohno-Matsui,
  3. T Yoshida,
  4. A Kojima,
  5. N Shimada,
  6. S Futagami,
  7. T Tokoro,
  8. M Mochizuki
  1. Department of Ophthalmology and Visual Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Japan
  1. Correspondence to: Kyoko Ohno-Matsui, MD, Department of Ophthalmology and Visual Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113, Japan; k.ohno.oph{at}med.tmd.ac.jp

Abstract

Aims: To evaluate angiographic features of myopic crescents using fluorescein angiography (FA) and indocyanine green angiography (IA).

Methods: FA and IA angiograms of 88 highly myopic eyes (47 consecutive patients) were reviewed. The follow up period ranged from 5–28 years.

Results: FA revealed two zones of the myopic crescent: a consistently hypofluorescent inner zone and an outer zone with delayed choroidal filling. IA revealed dislocation of the Zinn-Haller ring to the border between the two zones. Myopic crescent enlargement occurred in 68.1%. Only the outer zone increased significantly in most of the eyes with enlarged crescents.

Conclusions: The inner zone might develop as a result of mechanical stretching, and the outer zone might be the result a secondary circulatory disturbance and mechanical stretching.

  • myopic eyes
  • fluorescein angiography
  • indocyanine green angiography

https://doi.org/10.1136/bjo.87.9.1088

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