A dual disability involving both vision and hearing problems.

• A. Deaf-Blindness
• B. OHI
• C. Fragile X Syndrome
• D. Communication Boards

Answer: (A)

Deaf-blindness describes a person who has both vision and hearing loss to a degree that creates substantial barriers to accessing information and communicating. Because two senses are affected, students need specialized, coordinated supports—often including tactile or alternative communication methods, adaptive materials, and collaboration among teachers of the visually impaired and teachers of the deafblind, along with related services. This combination is what sets Deaf-blindness apart from other disabilities and explains why it’s the correct term for a dual sensory impairment.

OHI refers to a broad health-related impairment that can affect alertness and energy but isn’t defined by dual sensory loss. Fragile X Syndrome is a genetic condition with its own developmental profiles, not specifically a dual sensory impairment. Communication boards are tools to aid communication; they describe an aid, not a disability.