please answer this
Asked by anandgoyal
| 9th Jul, 2009,
08:49: PM
Expert Answer:
The corrective lenses needed when astigmatism is present are called Toric lenses and have an additional power element called a cylinder. They have greater light-bending power in one axis than in others.
Answered by
| 10th Jul, 2009,
10:03: AM
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