Two years is the usual rule, but for many people it should be sooner. Here is the guidance for every age group, and what is free in Wales.

Sore, tired, gritty eyes after a day of screens? You are not imagining it. Seven simple habits that genuinely help – and one popular fix that probably does not.

Diabetes, high blood pressure, glaucoma – an eye examination can reveal signs of health conditions long before other symptoms appear. Here is what we can see.