How can we educate people with visual impairment

Typically people with visual impairment are educated through the usage of hearing, or the use of braille.

Braille was created by Louis Braille as a way for people with visual impairment to be able to read, with an arrangement of studs signifying certain letters, and grouping them together you can form words and sentences. This is the main way for people with visual impairment to be educated.

Another way is through audio. It is scientifically proven that those who are born with dysfunctional sense typically seem to gain sharper senses in other working ones. With the survival of the fittest, the other senses step in to try to make up for the lack of sense, and would work much more better than the average person.

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i think its toxic gasses but i could be wrong