pre-lingually deafened children with cochlear implant who continuously used bimodal hearing.

hearing aid can be used in their non- implanted ear with residual hearing

By using pure tone and speech audiometer the pure tone audiometry will be done in the free field with a speaker at 0° azimuth and the mean threshold in speech frequencies of 0.5, 1, 2 and 4 kilohertz will be determined.

The speech discrimination score is a measure as a percentage of words from a standardized list presented at suprathreshold levels that are recognized and repeated by the patient.

a higher score on the speech discrimination test is better

Interpreting speech discrimination score :

100-90% Means Excellent or Normal speech discrimination score, 89-75% Means Good speech discrimination score, 74-60% Means Fair speech discrimination score, 59-50 % Means Poor speech discrimination score& <50% Means Very Poor speech discrimination score.

By speech perception in noise (SPIN) test using Compact disc on compact discs player.

The test will be done starting from a low level using the manual and standard scoring forms of Early speech perception test ( ESP) by using : Compact disc , full-color picture cards, Toys ,digitally remastered sounds, and an All Words menu

Speech reception threshold is the minimum intensity in decibels at which a patient can understand 50% of spoken words from a closed set list of disyllabic words