A small-gauge needle is usually used to puncture and incise the fibrous episcleral tissue. However, needle movement is sometimes restricted by strong resistance under the conjunctiva, with the result that incision of the episcleral scar tissue is inefficient.
A crescent knife is used for cataract surgery to incise hard tissue but is too wide manipulate under the conjunctiva via small entry site. We have now developed an extra-fine crescent knife for bleb revision. more

 

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