What is the role of retinal cryotherapy in the treatment of hemoglobinopathy retinopathy?

Updated: Sep 03, 2019
  • Author: Brian A Phillpotts, MD; Chief Editor: Hampton Roy, Sr, MD  more...
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In 1982, Hanscom demonstrated that retinal cryotherapy is useful in treating peripheral retinal ischemia as opposed to directly obliterating these neovascular beds. [3] This methodology of "indirect" obliteration of the neovascular bed showed complete regression of abnormal vessels with minimal complications.

Cryotherapy often is limited to cases with cloudy ocular media.

Single freeze-thaw and triple freeze-thaw have been advocated in treating PSR. However, it appears that triple freeze-thaw is associated with a high rate of complications (eg, proliferative vitreoretinopathy [PVR]) and, therefore, is not recommended.

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