Aflibercept in Polypoidal Choroidal Vasculopathy

Visual function of the study eye and fellow eye was assessed at each study visit according to the standard procedure developed for the ETDRS adapted for Age Related Eye Disease Study (AREDS), using 70 letter charts at a starting distance of 4 meters. Participants were challenged with reading letters on lines of an eye chart (5 letters per line). Lines became smaller as participants progressed from the top to the bottom of the chart. Participants read down the chart until they reached a row where a minimum of three letters on a line could be read, and were scored by how many letters could be correctly identified.

Visual function of the study eye and fellow eye was assessed at each study visit according to the standard procedure developed for the ETDRS adapted for Age Related Eye Disease Study (AREDS), using 70 letter charts at a starting distance of 4 meters. Participants were challenged with reading letters on lines of an eye chart (5 letters per line). Lines became smaller as participants progressed from the top to the bottom of the chart. Participants read down the chart until they reached a row where a minimum of three letters on a line could be read, and were scored by how many letters could be correctly identified.

Evaluations for qualification for rescue were conducted at each visit from Week 12 to Week 52. Intensified aflibercept treatment plus active or sham PDT treatments were given at any of these visits if treatment criteria were met. Qualification for rescue was based upon insufficient gain of BCVA, leakage, and presence of active polyps.

Visual function of the study eye and fellow eye was assessed at each study visit according to the standard procedure developed for the ETDRS adapted for Age Related Eye Disease Study (AREDS), using 70 letter charts at a starting distance of 4 meters. Participants were challenged with reading letters on lines of an eye chart (5 letters per line). Lines became smaller as participants progressed from the top to the bottom of the chart. Participants read down the chart until they reached a row where a minimum of three letters on a line could be read, and were scored by how many letters could be correctly identified.

Visual function of the study eye and fellow eye was assessed at each study visit according to the standard procedure developed for the ETDRS adapted for Age Related Eye Disease Study (AREDS), using 70 letter charts at a starting distance of 4 meters. Participants were challenged with reading letters on lines of an eye chart (5 letters per line). Lines became smaller as participants progressed from the top to the bottom of the chart. Participants read down the chart until they reached a row where a minimum of three letters on a line could be read, and were scored by how many letters could be correctly identified.

Visual function of the study eye and fellow eye was assessed at each study visit according to the standard procedure developed for the ETDRS adapted for Age Related Eye Disease Study (AREDS), using 70 letter charts at a starting distance of 4 meters. Participants were challenged with reading letters on lines of an eye chart (5 letters per line). Lines became smaller as participants progressed from the top to the bottom of the chart. Participants read down the chart until they reached a row where a minimum of three letters on a line could be read, and were scored by how many letters could be correctly identified.

Complete polyp regression was defined as absent or indeterminate visual polyps on Indocyanine green angiography (ICGA) in the study eye.

Leakage is the release of fluorescein dye from diseased retinal vessels. Leakage area is defined as the area showing presence of fluorescein dye in the late stages of fluorescein angiography.

Retinal and lesion characteristics, such as central retinal thickness (CRT), were evaluated by OCT in both eyes at every study visit. CRT was measured using optical coherence tomography to determine the average thickness of the retina in a circle with 1 millimeter of diameter centered on the fovea. This value is reported by some OCT devices as central subfield thickness (CST).

The NEI VFQ-25 total score ranges from 0-100 with a score of 0 being the worst outcome and 100 being the best outcome. The NEI VFQ questionnaire is organized as a collection of subscales which are all scored from 0-100. To reach the overall composite score, each sub-scale score is averaged in order to give each sub-scale equal weight.

Evaluations for qualification for rescue were conducted at each visit from Week 12 to Week 52. Intensified aflibercept treatment plus active or sham PDT treatments were given at any of these visits if treatment criteria were met. Qualification for rescue was based upon insufficient gain of BCVA, leakage, and presence of active polyps.