OCT Casebook: Starting out

Last time, we discussed patient set up. Before starting to look at scanning options, there are a couple of further points worth remembering about set up. Both relate to ametropia which, if not prepared for, can lead to error when scanning

To get the best focus of image, we discussed last time the importance of selecting the mean sphere correction on the OCT (figure 1, red circle). There are two common refractive errors which need to be considered as potential sources of scan inaccuracy:

Further preset modification will be discussed in a future casebook when we look at more challenging patients.

Figure 2a