6 Recommendations for further research
6.1 Further research is recommended to resolve uncertainties about the cost effectiveness of fluocinolone acetonide intravitreal implant for the treatment of chronic diabetic macular oedema. This should focus on a group of patients whose condition is unresponsive to other available therapies, and include measures of efficacy and health‑related quality of life. Research should focus on identifying appropriate utility values, taking into account the utility values for different levels of visual acuity and the relative relationship in utility values from treating the best‑seeing and the worse‑seeing eye. The appropriateness of generalising utility values from one group of eye conditions to another group would also be of value.