• Buttonholing of conjunctival flaps at the time of filtering glaucoma surgery or a leak in the flap postoperatively can cause serious problems and may be most difficult to repair. A new delicate atraumatic needle has been used successfully in five cases to close conjunctiva to conjunctiva or conjunctiva to cornea defects.
Petursson GJ, Fraunfelder FT. Repair of an Inadvertent Buttonhole or Leaking Filtering Bleb. Arch Ophthalmol. 1979;97(5):926–927. doi:10.1001/archopht.1979.01020010484021
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