as part of the whole report which is about designing a device to aid the visually impaired. Identifying the problems the visually impaired face nowadays should be included. here are couple of problems the writer can write about:
- Navigation in the external environment represents one of the most difficult challenges for the blind people.

- Visual impairment limits the social interaction of blind people with others.

- Visual impairment might lead to psychological problems (please include sources if there is any).

- Integration of the key electronic mobility aids into a user friendly device is very challenging.