Mrs Princkter is a 70 year old female who unfortunately developed Cataracts secondary to surgery for Retinal Detachment. She is known to have Hypertension, Ischaemic Heart Disease, Gout and right shoulder Osteoarthritis. Mrs Princkter lives alone and is independent of activities of daily living but has three sons who live nearby and visit daily. She has never been keen on further eye operations as she found the process quite stressful but has noticed her vision has deteriorated over the last few months. She has come in today to discuss the risks/benefits of cataract surgery and whether she would be eligible.
Which one of the following complications is most common following Cataract surgery?