I Had retinal detachments about two years apart. The first required emergency surgery the second did not. The surgeon, who did a fantastic job, told me to expect a requirement for cataract replacement surgery approximately two years post detachment surgery. He was spot on and the lens replacements were brilliant. CASA intially required a full eye specialist check and report every year, for Class 1 medical, and then dropped that requirement after three years. My specialist tells me that I enjoy better vision than 97% of the population although I do require reading glasses because I choose lens that give me excellent distance vision. So in closing just get the lens replaced at the earliest opportunity as you wont regret it.