title: Verteporfin therapy in occult with no classic CNV due to AMD: results of the Photodynamic Therapy in Occult-Only Lesions study.
abstract: OBJECTIVE
  To provide further information on verteporfin photodynamic therapy in occult with no classic choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD).
  
  
  METHODS
  Verteporfin therapy was administered at baseline and then at months 3, 6, and 9, if fluorescein leakage from CNV was evident on angiography.
  
  
  RESULTS
  Of 202 patients enrolled, 184 completed 12 months. Each patient was treated in one eye only. All study eyes received verteporfin therapy at baseline, with a progressive decrease in the number treated at subsequent visits (mean 2.5 treatments during 12 months). The mean change in visual acuity letter score from baseline to month 12 was -11.9. At month 12, 164 eyes (82.4%) had lost <30 letters of visual acuity, 123 eyes (61.8%) had lost <15 letters, 78 eyes (39.2%) had lost <5 letters, 31 (15.6%) had >5-letter increase, and 7 (3.5%) had >15-letter improvement. The percentage of eyes with fluorescein leakage from CNV decreased from 75.5% at month 3 to 25.1% at month 12. Adverse events were documented for 54% patients. Few patients had treatment-associated adverse events (7%). Acute severe visual acuity decrease occurred in two eyes (1%), one of which had visual acuity that returned to baseline by the next follow-up visit.
  
  
  CONCLUSIONS
  This study provides additional evidence that over 12 months, verteporfin is generally well tolerated and maintains or improves visual acuity in over one-third of eyes containing occult-only CNV. Verteporfin also improved anatomical outcomes by reducing leakage from CNV in at least two-thirds of eyes.
authors.affiliation: Departement d'Ophtalmologie, Hôpital Intercommunal de Créteil, Créteil Cedex, France. gisele.soubrane@chicreteil.fr
authors.forename: G
authors.initials: G
authors.lastname: Soubrane
authors.forename: S P
authors.initials: SP
authors.lastname: Harding
authors.forename: S
authors.initials: S
authors.lastname: Wolf
authors.forename: A
authors.initials: A
authors.lastname: Weichselberger
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D020256:Choroidal Neovascularization / Q000188:drug therapy*; D005260:Female; D019793:Fluorescein / Q000032:analysis; D005451:Fluorescein Angiography; D006801:Humans; D008268:Macular Degeneration / Q000150:complications* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000627:therapeutic use*; D011166:Porphyrins / Q000627:therapeutic use*; D000077362:Verteporfin; D014792:Visual Acuity / Q000187:drug effects
chemical_list: D017319:Photosensitizing Agents; D011166:Porphyrins; D000077362:Verteporfin; D019793:Fluorescein