[An experimental study on homoharringtonine and glaucoma surgery]

Area of Science:

• Ophthalmology
• Pharmacology
• Cell Biology

Context:

• Glaucoma surgery, specifically posterior sclerectomy, aims to reduce intraocular pressure.
• Wound healing and scar formation at the surgical site can impede the long-term success of glaucoma filtration surgery.
• Identifying agents that modulate wound healing is crucial for improving surgical outcomes.

Purpose:

• To evaluate the effect of Homoharringtonine (HH), a Chinese herbal drug, on the wound healing process following experimental posterior sclerectomy.
• To determine if HH can inhibit cicatrization and promote the formation of functional filtering blebs.

Summary:

• Posterior sclerectomies were performed in rabbits, with one eye receiving subconjunctival Homoharringtonine (HH) and the fellow eye receiving saline.
• Postoperatively, HH treatment led to a significant decrease in intraocular pressure and an increased number of filtration blebs compared to controls.
• Pathological examination revealed a significant reduction in fibroblast density in the HH-treated eyes, indicating inhibited scar formation.
• No serious or permanent ocular toxic effects were observed.

Impact:

• Homoharringtonine (HH) demonstrates potential as an adjunct therapy to inhibit scar formation after glaucoma filtering surgery.
• The findings support the further clinical investigation of HH for enhancing the success rate of glaucoma filtration procedures.
• HH may offer a novel therapeutic strategy to improve long-term intraocular pressure control in glaucoma patients.