How we see light.
In this mini-documentary we meet Alex and his guide dog Leo. Alex is virtually blind. It is a congenital condition and means that any light that does enter his eyes is not processed correctly by his optic nerves. He has a minute amount of peripheral vision but only in bright light. In dark condition...
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| Corporate Author: | |
|---|---|
| Format: | Electronic Video |
| Language: | English |
| Published: |
[England] :
Teachers TV/UK Dept. of Education,
2009.
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| Series: | Education in video
Lesson starters ; 5 |
| Subjects: | |
| Online Access: |
Full text (Emmanuel users only) |