title: OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY AFTER PHOTOCOAGULATION OF TYPE 2 NEOVASCULARIZATION.
abstract: OBJECTIVE
  To illustrate errors in the automated segmentation image analysis of optical coherence tomography angiography after laser photocoagulation therapy for Type 2 neovascularization.
  
  
  METHODS
  This case report describes a patient with extrafoveal Type 2 neovascularization treated with argon laser photocoagulation evaluated before and after treatment by optical coherence tomography angiography.
  
  
  RESULTS
  Disrupted retinal layers after laser photocoagulation therapy lead to segmentation errors.
  
  
  CONCLUSIONS
  Images of optical coherence tomography angiography are prone to degradation by artifacts in cases in which there is disruption of the retinal layers. Clinicians must be aware of these errors because they can be misinterpreted as active Type 2 neovascularization. Improvement in optical coherence tomography angiography image analysis to minimize automated segmentation errors needs to be further explored.
authors.affiliation: New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.
authors.forename: Malvika
authors.initials: M
authors.lastname: Arya
authors.affiliation: New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.
authors.forename: Emily D
authors.initials: ED
authors.lastname: Cole
authors.affiliation: New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.|Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
authors.forename: Eduardo A
authors.initials: EA
authors.lastname: Novais
authors.affiliation: New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.|Ophthalmic Center Reference (CEROF), Federal University of Goias, Goiania, Brazil.
authors.forename: Ricardo N
authors.initials: RN
authors.lastname: Louzada
authors.affiliation: New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.
authors.forename: Nadia K
authors.initials: NK
authors.lastname: Waheed
authors.affiliation: New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.
authors.forename: Jay S
authors.initials: JS
authors.lastname: Duker
mesh_terms: D000369:Aged, 80 and over; D003924:Diabetes Mellitus, Type 2 / Q000150:complications; D003930:Diabetic Retinopathy / Q000000981:diagnostic imaging* / Q000601:surgery; D005451:Fluorescein Angiography / Q000379:methods*; D006801:Humans; D017075:Laser Coagulation; D008297:Male; D015861:Retinal Neovascularization / Q000000981:diagnostic imaging* / Q000601:surgery; D041623:Tomography, Optical Coherence / Q000379:methods*