Objective To evaluate the speech performance in hearing-impaired listeners with hearing aids or cochlear implant after wearing smart glasses. Methods Twenty-three subjects with sensorineural hearing loss were recruited

including 8 males and 15females at the age ranging from 26 to 52 years. They had bilaterally symmetric hearing loss with the averaged 0.5-4 kHz PTA on left and right ears at 104.4±7.26 dB HL and 106.47±6.97 dB HL respectively. These subjects were fitted with bilateral hearing aids or the bimodal（one ear hearing aids and another ear cochlear implant）. The Mandarin Speech Test Materials（MSTMs） software was used to test speech perception performance by using sentence materials under four conditions

aided in quiet and in noise before wearing smart glasses

aided in quiet and in noise after wearing smart glasses. Results Speech discrimination score by using sentence materials was tested as follows: 32.43 ±36.81% aided in quiet and 14.52±19.83% aided in noise before wearing smart glasses; 91.87±8.13% aided in quiet and 96.48±5.2% aided in noise after wearing smart glasses. The speech performance by using sentence materials in subjects aided with hearing aids or the bimodal in quiet and in noise after wearing smart glasses is improved by 59% and 82% in average.Conclusion The speech performance in subjects with hearing loss aided with hearing aids or the bimodal after wearing smart glasses is improved effectively.