title: Photodynamic therapy with verteporfin of choroidal neovascularization in angioid streaks: conventional versus early retreatment.
abstract: OBJECTIVE
  To evaluate the effectiveness of conventional photodynamic therapy with verteporfin (PDT) in a series of patients with macular choroidal neovascularization (CNV) due to angioid streaks and to compare it to the effectiveness of early PDT retreatment.
  
  
  METHODS
  This is a retrospective study of 24 eyes (22 consecutive patients) with subfoveal or juxtafoveal CNV secondary to angioid streaks treated with PDT from September 2000 through February 2003 and that completed at least the first year of follow-up. Until August 2001, retreatments were performed according to the conventional protocol for PDT every 3 months (Group 1, consisting of 11 eyes of 9 patients). After August 2001 (13 more eyes of 13 new patients), retreatments were performed earlier (every 8 weeks) when indicated (Group 2). The follow-up time ranged from 30 to 42 months and from 12 to 30 months in Groups 1 and 2.
  
  
  RESULTS
  At the end of the follow-up, final best-corrected visual acuity decreased in 21 (87.5%), stabilized in 2 (8.3%), and improved in 1 (4.2%) of the total 24 eyes. In all, 19 of the 24 eyes (79.2%) had a final best-corrected visual acuity equal to or less than 20/400. There were not any statistically significant differences in final visual acuity between the two groups.
  
  
  CONCLUSIONS
  In this large series of patients with macular CNV secondary to angioid streaks, the functional and the anatomic results of PDT were not satisfactory, even when retreatments were performed earlier than the conventional time of 3 months.
authors.affiliation: Department of Ophthalmology, Medical School of Athens University, Athens - Greece. ladas@ath.forthnet.gr
authors.forename: I D
authors.initials: ID
authors.lastname: Ladas
authors.forename: I
authors.initials: I
authors.lastname: Georgalas
authors.forename: A A
authors.initials: AA
authors.lastname: Rouvas
authors.forename: S
authors.initials: S
authors.lastname: Gotsis
authors.forename: D A
authors.initials: DA
authors.lastname: Karagiannis
authors.forename: M
authors.initials: M
authors.lastname: Moschos
mesh_terms: D000328:Adult; D000368:Aged; D000793:Angioid Streaks / Q000150:complications / Q000188:drug therapy*; D020256:Choroidal Neovascularization / Q000188:drug therapy* / Q000209:etiology / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000627:therapeutic use*; D011166:Porphyrins / Q000627:therapeutic use*; D019233:Retreatment; D012189:Retrospective Studies; D016896:Treatment Outcome; D000077362:Verteporfin; D014792:Visual Acuity
chemical_list: D017319:Photosensitizing Agents; D011166:Porphyrins; D000077362:Verteporfin