title: The nature and frequency of neovascular age-related macular degeneration.
abstract: OBJECTIVE
  This study was designed to evaluate the frequency and nature of neovascularization in age-related macular degeneration (ARMD) utilizing the combination of digital imaging techniques, fluorescein angiography (FA), indocyanine green (ICG) angiography, and optical coherence tomography (OCT).
  
  
  METHODS
  A complete clinical examination was performed on 100 eyes of 93 consecutive newly diagnosed patients with neovascular ARMD. Digital fluorescein angiography, ICG angiography, and OCT were also used in evaluating those patients. Comparison of the imaging techniques to determine their value in studying the nature of the lesions.
  
  
  RESULTS
  On the basis of existing fluorescein standards, 15 eyes were diagnosed with classic choroidal neovascularization (CNV), 15 with minimally classic CNV, and 70 with occult CNV. ICG angiography was superior for detecting the active vascular component in polypoidal CNV (16 eyes) and retinal angiomatous proliferation (14 eyes). OCT was more sensitive than FA for determining the presence of cystoid macular edema evident in the vast majority of eyes with retinal angiomatous proliferation (RAP).
  
  
  CONCLUSIONS
  These results suggest that FA, ICG angiography, and OCT, when used in combination, will assist clinicians in best determining the precise nature of the neovascular process in ARMD.
authors.affiliation: The LuEsther T. Mertz Retina Research Center of Manhattan Eye, Ear and Throat Hospital, New York, USA.
authors.forename: R
authors.initials: R
authors.lastname: Iranmanesh
authors.forename: C M
authors.initials: CM
authors.lastname: Eandi
authors.forename: E
authors.initials: E
authors.lastname: Peiretti
authors.forename: C M
authors.initials: CM
authors.lastname: Klais
authors.forename: S
authors.initials: S
authors.lastname: Garuti
authors.forename: D E
authors.initials: DE
authors.lastname: Goldberg
authors.forename: J S
authors.initials: JS
authors.lastname: Slakter
authors.forename: L A
authors.initials: LA
authors.lastname: Yannuzzi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002829:Choroid / Q000098:blood supply; D020256:Choroidal Neovascularization / Q000175:diagnosis* / Q000209:etiology; D004396:Coloring Agents; D005260:Female; D005451:Fluorescein Angiography / Q000379:methods*; D006801:Humans; D007208:Indocyanine Green; D008268:Macular Degeneration / Q000150:complications / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015861:Retinal Neovascularization / Q000175:diagnosis / Q000209:etiology; D012171:Retinal Vessels / Q000473:pathology; D041623:Tomography, Optical Coherence / Q000379:methods*
chemical_list: D004396:Coloring Agents; D007208:Indocyanine Green