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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
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Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Canaloplasty in Open-angle Glaucoma: Mid-term Results From a Multicenter Study.

Paolo Brusini1, Guido Caramello, Stefano Benedetti

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Mid-term results show canaloplasty surgery effectively lowers intraocular pressure in open-angle glaucoma patients, reducing medication needs. This bleb-less procedure shows promising outcomes for restoring aqueous humor outflow.

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Area of Science:

  • Ophthalmology
  • Glaucoma Surgery
  • Surgical Techniques

Background:

  • Chronic open-angle glaucoma is a progressive optic neuropathy.
  • Elevated intraocular pressure (IOP) is a primary risk factor.
  • Medical therapy is often insufficient for long-term IOP control.

Purpose of the Study:

  • To evaluate the mid-term efficacy and safety of canaloplasty.
  • To assess the impact of canaloplasty on intraocular pressure and medication use.
  • To report outcomes in a prospective, multicenter study.

Main Methods:

  • Prospective, multicenter study involving 197 patients (218 eyes).
  • Patients with open-angle glaucoma underwent canaloplasty.
  • Follow-up examinations every 6 months for up to 42 months.

Main Results:

  • Mean IOP reduced by 44% from 28.4±7.5 mm Hg to 15.9±4.7 mm Hg at 2 years (P=0.0001).
  • Qualified success rates at 2 years were 92.1% (IOP≤21), 84.3% (IOP≤18), and 68.5% (IOP≤16).
  • Medication use decreased from 3.2±0.9 to 1.1±1.3 post-surgery.

Conclusions:

  • Canaloplasty demonstrates promising mid-term results for chronic open-angle glaucoma.
  • The procedure is technically demanding but restores physiological aqueous humor outflow.
  • Complications are infrequent and generally not severe.