| 1. | But knives and lasers can leave corneal tissue with ragged edges.
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| 2. | Doctors have been transplanting corneal cells from donor eyes for years.
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| 3. | Thousands more wait for corneal, bone and other tissue transplants.
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| 4. | Spokesman Arnold Corneal said the president had not yet received them.
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| 5. | In 1949, the first " corneal " lenses were developed.
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| 6. | Rigids can also correct for corneal irregularities, such as keratoconus.
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| 7. | At high concentrations CN has caused corneal epithelial damage and chemosis.
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| 8. | The human cornea borders with the sclera via the corneal limbus.
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| 9. | Corneal transplants may improve vision among patients with significant corneal clouding.
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| 10. | Corneal transplants may improve vision among patients with significant corneal clouding.
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