Complex sentence: Specifically, argon laser is used so that small openings in the eye's trabecular meshwork, from which the aqueous humor can drain better-this helps reduce intraocular pressure caused by open-angle glaucoma.
Split into simpler sentences: Specifically, argon laser is used to improve drainage through the eye's trabecular meshwork, from which the aqueous humour drains. This helps reduce intraocular pressure caused by open-angle glaucoma.