<https://curriculum.rcophth.ac.uk/2017/05/surveillance-of-sight-loss-due-to-delay-in-ophthalmic-treatment-or-review-frequency-cause-and-outcome-eye-31-771-may-2017/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://curriculum.rcophth.ac.uk/2017/05/surveillance-of-sight-loss-due-to-delay-in-ophthalmic-treatment-or-review-frequency-cause-and-outcome-eye-31-771-may-2017/>