Tamsulosin
- Selective alpha-1A antagonist used to treat symptoms in benign prostatic hypertrophy
- Most common ophthalmic side effect: floppy iris syndrome
- Dome-shaped anterior displacement of iris
- Prolapse of iris during cataract surgery, requiring special measures to prevent surgical complications
- Occurs in up to 60% of patients
- Discontinue medication within week of anticipated intraocular surgery
- Floppy iris syndrome must be anticipated by cataract surgeon to avoid complications
- Special maneuvers usually allow safe lens extraction
