Any configuration of hearing loss is possible. If there is a difference in hearing between your two ears, you will have problems localizing where sounds are coming from as well as following conversations in a group.
It is important to get a hearing test and medical consultation as soon as possible if you experience a sudden hearing loss.
If you do not require medical treatment, you should definitely consider amplification. Depending on the amount of hearing loss, we may recommend a hearing aid for that ear. Contralateral routing of signals (CROS) amplification systems are used when one ear has normal or near-normal hearing and the other ear has a significant hearing loss that isn’t “aidable.” BiCROS (bilateral microphones with contralateral routing of signal) amplification systems are recommended when both ears have hearing loss, but one ear hears substantially “better” than the other.
So, if someone is speaking into your poorer ear, the signals are processed and then transmitted wirelessly to your better hearing ear allowing you to hear sounds from both sides. This is especially useful in group situations such as restaurants or classrooms.