| Sumario: | Visual impairment (VI) can significantly hinder language development in children. While VI alone may not drastically alter the trajectory of language acquisition, the presence of additional disabilities can pose significant challenges. Despite these difficulties, augmentative and alternative communication (AAC) strategies, such as speech-generating devices (SGDs) and tactile symbols, have shown promise in supporting communication and language development in such children. This study investigated the efficacy of a targeted AAC intervention utilizing an SGD and individualized tactile symbols to enhance communication functions, receptive and expressive language skills in a non-verbal child with VI and additional disabilities. Additionally, the study explored the caregiver's satisfaction with the intervention. A longitudinal case study method was employed to meet the study purpose. A baseline assessment of communication and language skills was done prior to intervention. Intervention using SGD and tactile symbols were carried out in three phases and outcomes were measured once during the intervention phase and once again after providing intervention. The intervention, conducted over 40 sessions, yielded positive results, demonstrating a significant impact on the child's communication and language development. Notably, the child also developed meaningful speech during the intervention period. The primary caregiver rated the outcomes of the intervention as highly beneficial to the child. The study concludes that a well-structured intervention, incorporating both technological and tactile modalities, can substantially enhance the speech, language, and communication skills of children with VI and additional disabilities. IMPLICATIONS FOR REHABILITATION: The current study highlights the benefits of using a multimodal AAC approach in developing communication and language in a child with visual impairment and additional disability in a low-resource setting. The current study provides evidence against a prevalent myth that AAC impedes speech development. A family-centered approach that involves caregivers in the decision-making process and provides ongoing support is essential for the long-term success of AAC intervention. A collaborative approach involving professionals from various disciplines is crucial to ensure effective implementation of AAC intervention. A well-structured intervention allows children with visual impairment to predict a sequence of related events, introducing greater structure and organization to their daily experiences, and facilitating language learning.
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