What are the possible complications of choroidal neovascularization (CNV)?

Updated: Jul 27, 2020
  • Author: Lihteh Wu, MD; Chief Editor: Andrew A Dahl, MD, FACS  more...
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After 5 years of follow-up, the MPS reported that 55% of patients with exudative ARMD, 33% of patients with POHS, and 34% of patients with idiopathic CNV had a recurrent or persistent CNV after laser photocoagulation. [18] These recurrences, regardless of etiology, tended to be toward the foveal side and were associated with visual loss. In most cases, photocoagulation of these recurrent CNV is indicated. Laser treatment of peripapillary CNV may be complicated by thermal damage to the papillomacular bundle.

Surgical excision of CNV may be complicated by retinal detachment, postvitrectomy cataract, choroidal hemorrhage, epimacular membrane, and macular hole. CNV recurrence following excision occurred in up to 44% of cases. How to effectively manage these recurrences is unclear.

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