How does children having sensory impairments affect their development?

It depends: It depends upon the defect.Different learning skills may be affected such as reading and alternative teaching may be needed. It might affect various work skills and jobs.More information is really needed.

Learning: We learn by what we see, what we hear, what we touch and what touches us. To a lesser extent, we learn by what we taste and smell. It is vital to check vision and hearing in a child with developmental delays. Likewise, it's important to know if a child can explore objects by touch. If there are deficits in any of these, alternative methods of teaching can help a child learn.