meta. 1  Formal second-person singular (usted) imperative form of meter. 2  First-person singular (yo) present subjunctive form of meter. 3  Formal second-person singular (usted) present subjunctive form of meter. 4  Third-person singular (Ã©l, ella, also used with usted) present subjunctive form of meter.
A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy such as syphilis and rubella may also cause hearing loss. Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear. Testing for poor hearing is recommended for all newborns.
A Low-frequency hearing loss may be missed because it tends to not have many symptoms. Lower frequency sounds do not have as much information as sounds in the higher frequencies so people with hearing in the middle and high frequencies can use what they hear in those frequencies to make up for what they do not hear in the lower frequencies, thereby masking the hearing loss.