 Randomised controlled trials RCTs are widely employed interventional studies in medicine, yet many times their outcomes are presented inconsistently. The COMET Initiative Core Outcome Measures for Effectiveness Trials suggests that a solution for that issue would be preparation of a core outcome set COSa minimal group of outcome measures relevant to different group of stakeholders e.g. clinicians, patients, carers that would be implemented in each RCT in a particular area. The overall aim is to prepare a COS for age related-macular degeneration AMD RCTs. As first step to develop a COS for AMD, the investigators conducted a systematic review that confirmed variability in AMD trials outcome selection. The current step encompasses involvement of different stakeholders groups in focus groups: patients and caregivers current project such as family members and friends helping AMD patients with their everyday living. Knowledge of caregivers perspective on living with, treatment and outcomes for AMD is a key consideration when building up a COS, because they may not only evaluate existing outcomes, but also their experience may be translate into new outcomes. In the current focus group study, caregivers will be invited for a one hour discussion. The investigators plan to arrange three focus groups with approximately 8 participants each. Two researchers will be present to help facilitate discussion. Participants will be asked about their experience related to their help brought to AMD patients, observations of living with and treatment of AMD as well as about AMD study outcomes and their importance. 