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Implant Liberates the Deaf From Silence

January 29, 1985|JOHN DREYFUSS | Times Staff Writer

"Me have nothing. Me deafy. Speech inept. Intelligence--tiny blockhead. English--blow away. Left one you. Depend--no. Think myself enough. . . ."

Sarah Norman's poignant opening lines from the play "Children of a Lesser God" gain clarity through translation.

Translation: I have nothing; no hearing, no speech, no intelligence, no language. I have only you. I don't need you. I have me alone . . . .

Sarah speaks with her hands in the language of another world: the deaf world.

"Think myself enough," she says.

A great many deaf people retreat from the outside world, and think themselves enough. They see little choice in the matter.

Life in a Bottle

To live without sound is to live in a bottle, said Dr. William F. House. "You can see out of the bottle, but you can't be a part of the world outside."

House smashed the bottle by inventing a device that for the first time gives hearing to the profoundly deaf. While the sound transmitted by the 3M House Cochlear Implant System is imperfect--users describe it as fuzzy--it transports the deaf to a hearing universe. It liberates them from an often debilitating, isolated world of utter silence.

House, who is president of the House Ear Institute in Los Angeles, took 27 years to develop the cochlear implant. In November, the Food and Drug Administration finally approved it for adult use. The institute has trained 52 physicians in the United States and abroad to perform the implant operation, and some of those doctors have trained 20 more to implant the devices.

Implanting the device in people under 18 still is limited to eight medical centers in the United States. The only one in California is the House Ear Institute.

Basically, the implant works by electronically stimulating the auditory nerve. A tiny microphone picks up sound and transmits it to a signal processor about the size of half a pack of playing cards where the signal is modified and amplified. The signal then runs through a wire to a coil above the ear from which it travels through the skin to a similar coil beneath the skin of the head. The two coils are held together magnetically through the skin. A wire leads from the interior coil through the skull to the cochlea (inner ear). The electronic signal to the cochlea stimulates the auditory nerve, producing a hearing effect.

About 665 people, including 164 children, have tried the 3M House implant, which is named for its inventor and its manufacturer. The device is not universally popular. About 30% of the adults born deaf who tried implants quit using them after a short time.

People born deaf feel safer in their own environment, House said. They have never known the hearing environment. To many born deaf, the hearing world is threatening and alien. It ignores the deaf and often is annoyed by them.

There is a defensive sense of alienation and, sometimes, superiority among some born deaf. "They have their lives, their culture, which is not understood by the hearing," House said.

Although born deaf sometimes reject the implant, it is extraordinarily popular with others, despite problems including its uselessness in hearing telephone conversations and occasional breakdowns that require surgery for repair.

The implant has an impressive success rate among all children and among adults who lost their hearing after having learned to speak. About 90% of adults who learn to speak, then go deaf and then try the implant, stick with it. The figure rises to 97% for children 18 and under, and the 3% who have stopped using the device have all been teen-agers.

Janet Doak, vice president of the House Ear Institute, attributes the high success rate among young children to the fact that, even though they may have been born deaf, they haven't had time to develop their own world sufficiently to let it separate them entirely from the hearing world. As for adults who have experienced hearing and lost it, they want the treasure back, Doak said.

What It Costs

It is not cheap to regain hearing. With the recent FDA approval, most insurance companies will pay 80% of the $4,000 to $5,000 cost of an implant plus the same percentage of the $6,000 to $7,000 needed for doctor, hospital and rehabilitation fees. Alternatives are expensive, too. It costs more than $22,800 a year to keep a student at the California School for the Deaf, Riverside, an official of the state-run institution said.

Among its users there is no doubt about the value of a 3M House cochlear implant. X-ray technician Darlene Fragale had an implant in 1979 and thought it was good enough to undergo a second operation for a second implant three years later when the technology of the device had improved significantly.

'An Absolute Miracle'

"It puts me in touch with my environment. I don't butt into conversations any more. I hear traffic. I hear telephones. It broke me free from an isolated cocoon," said the 51-year-old Montrose resident who suffers from disease that causes softening of the bones of the inner ear.

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