Investigation of the Change of Vision-related Quality of Life in Subjects Treated With Aflibercept According to EU Label for DME. (AQUA)

National eye institute 25-item visual function questionnaire (NEI VFQ-25) is a condition-specific measure which was designed to capture the specific impact of vision loss on health-related quality of life (HRQoL). The calculation for NEI VFQ-25 sub-scale scores and total score was performed according to the "NEI VFQ-25 Scoring Algorithm - August 2000". The NEI VFQ-25 consists of a base set of 25 vision-targeted questions representing 11 vision-related constructs, plus an additional single-item general health rating question. All items are scored so that a high score represents better functioning. Each item is then converted to a 0 to 100 scale so that the lowest and highest possible scores are set at 0 and 100 points, respectively. In this format scores represent the achieved percentage of the total possible score, e.g. a score of 50 represents 50% of the highest possible score.

NEI VFQ-25 is a condition-specific measure which was designed to capture the specific impact of vision loss on HRQoL. The calculation for NEI VFQ-25 sub-scale scores and total score was performed according to the "NEI VFQ-25 Scoring Algorithm - August 2000". Items within each sub-scale are averaged together to create the 12 sub-scale Scores. Items that are left blank (missing data) are not taken into account when calculating the scale scores. Sub-scales with at least one item answered can be used to generate a sub-scale score. Hence, scores represent the average for all items in the subscale that the respondent answered.The NEI VFQ-25 near activities subscale was scored from 0-100 with a score of 0 being the worst outcome and 100 being the best outcome. Near activities are defined as reading ordinary print in newspapers, performing work or hobbies requiring near vision, or finding something on a crowded shelf.

NEI VFQ-25 is a condition-specific measure which was designed to capture the specific impact of vision loss on HRQoL. The calculation for NEI VFQ-25 sub-scale scores and total score was performed according to the "NEI VFQ-25 Scoring Algorithm - August 2000". Items within each sub-scale are averaged together to create the 12 sub-scale Scores. Items that are left blank (missing data) are not taken into account when calculating the scale scores. Sub-scales with at least one item answered can be used to generate a sub-scale score. Hence, scores represent the average for all items in the subscale that the respondent answered. The NEI VFQ-25 distant activities subscale was scored from 0-100 with a score of 0 being the worst outcome and 100 being the best outcome. Distant activities are defined as activities requiring distance vision, such as recognizing faces or reading street signs.

Visual function was assessed using the ETDRS protocol (Early Treatment Diabetic Retinopathy Study Research Group 1985) starting at 4 meters. The values might range from 0 to 100. A higher score represents better functioning.

Retinal and lesion characteristics were evaluated using spectral domain optical coherence tomography (OCT). For all visits where the OCT procedure was scheduled, images were captured and read by the investigator. All OCTs were electronically archived at the study sites as part of the source documentation.

The ETDRS DRSS was assessed by FP according to the following scale for both eyes. The following severities are possible. 10 = Diabetic retinopathy (DR) absent, 14 = DR questionable, 15 = DR questionable, 20 = Micro-aneurysms only, 35 = Mild Non-proliferative diabetic retinopathy (NPDR), 43 = Moderate NPDR, 47 = Moderately severe NPDR, 53 = Severe NPDR, 61 = Mild Proliferative diabetic retinopathy (PDR), 65 = Moderate PDR, 71 = High-risk PDR, 75 = High-risk PDR, 81 = Advanced PDR: fundus partially obscured, center of macula attached, 85 = Advanced PDR: posterior fundus obscured, or center of macula detached, 90 = cannot grade, even sufficiently for level 81 or 85.