In her PhD research, epidemiologist and optometrist Petra Rausch has developed a PROM that can be administered computer adaptively (CAT) in ophthalmic clinical practice. Instead of a long questionnaire, an algorithm determines which questions are important to the patient. In this way, the burden to fill out the questionnaire for the patient remains low. The questionnaire is called the CAT-EyeQ and can be used as a monitoring tool for the assessment of vision-related quality of life in patients who are being treated with intra-ocular anti-VEGF injections. The new PROM has been validated among more than 700 patients with macular edema due to several exudative retinal diseases.