Apart from the functionality the interface is one of the most important for the user, it's what they see and interact on a daily basis. Making sure that the UI complies to our set demographics is keen to success.
Getting the user accustomed to out main color, purple, for main interactions is important. This purple is not just vibrant but tells the user their primary action, or what they have to do next.
Not confusing the user and using a proper color for error massages will help the user accomplish what you want them to fix or change.
In the modern world most apps and site are being designed with a 14px and even some down to 12px base font. Sticking to old school 16 base font will keep your site accessible to all ages and users who have trouble seeing smaller fonts
In comparison to most apps our headers are 20% bigger for accessibility. This helps readers and user know what they need to read first then second and so on. Readibility hierarchy is very important
Many apps in todays still follow a list style design. Card based design offers a cleaner and user friendly approach. The addition to images gives the users a more clear understanding on what their choice is
Adding outlines to all UI helps with accessibility.
Animations help users with screen fatigue, and bring the UI to live. Also within a small area you can tell or describe more to a patient instead of a plain image.