CORRECTION ========== In the letter by Shortt *et al* ([Br J Opthalmol 2003;87:1302](http://bjo.bmj.com/lookup/volpage/87/1302)), the image presented in fig 3 was the incorrect figure. The correct figure is shown below. The journal apologises for the error. ![ Figure 1 ](http://bjo.bmj.com/https://bjo.bmj.com/content/bjophthalmol/88/7/977.2/F1.medium.gif) [ Figure 1 ](http://bjo.bmj.com/content/88/7/977.2/F1) **Figure 1**  Postoperative MRA. Normal blood flow is present in both ophthalmic arteries (arrows).