Apraclonidine 1% is instilled immediately before and after argon laser trabeculoplasty. The specific purpose of this practice is to:
- A Prevent the transient post-laser rise in intraocular pressure ✓
- B Provide topical anesthesia for the laser procedure
- C Reduce postoperative inflammation and synechiae formation
- D Prevent bacterial endophthalmitis following laser burns
Correct answer: A. Prevent the transient post-laser rise in intraocular pressure
Explanation
Laser trabeculoplasty frequently produces a sharp transient intraocular pressure spike within the first few hours, which can threaten an already compromised optic nerve. Apraclonidine, a selective alpha-2 adrenergic agonist, reduces aqueous humor production and blunts this spike when given before and after treatment. It has no anesthetic, anti-inflammatory, or antimicrobial activity.
Reference: Parsons' Diseases of the Eye, 23rd ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.