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Glossary

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  • Schlemm's canal
    A circular channel in the sclera surrounding the cornea that drains aqueous humor from the eye. 
  • sclera
    The white part of the eye. 
  • sclerostomy
    A small hole made in the sclera to allow excess aqueous humor to escape from the eye.  This is a critical step in trabeculectomy surgery. 
  • seton
    A tube that is put in the eye surgically to treat glaucoma by providing an alternate drainage pathway for the aqueous humor.  Also referred to as a glaucoma drainage tube, glaucoma tube, glaucoma valve, tube, or tube shunt. 
  • steroid
    A medicine that has the ability to reduce inflammation.  Steroids may be administered as eyedrops, eye ointment, orally, or by injection
  • strabismus
    Misaligned eyes.  In some countries, the term squint is used instead.