Latanoprost: How It Lowers Eye Pressure and How to Use It
Latanoprost is a commonly prescribed eye drop for lowering intraocular pressure (IOP) in people with glaucoma or ocular hypertension. You usually take it once a day, and for many people one nightly drop makes a noticeable difference in pressure. This guide gives clear, practical tips on how to use it, what side effects to expect, and what to tell your doctor at your next visit.
How latanoprost works and when it's used
Latanoprost is a prostaglandin analog. It helps fluid leave the eye through the uveoscleral pathway, which lowers pressure inside the eye. Doctors prescribe it for open-angle glaucoma and for people with high eye pressure who need treatment to reduce the risk of vision loss. Brand names include Xalatan and generic latanoprost; formulations can differ slightly but the basic action is the same.
How to use latanoprost
Put one drop in the affected eye(s) once every evening. Don’t use it more than once a day — extra doses won’t work better and may increase side effects.
Follow this simple routine: wash your hands, tilt your head back, pull the lower eyelid down to make a small pocket, instill one drop, close your eye gently for 1–2 minutes, and press the inner corner (nasolacrimal sac) for about 30 seconds to reduce drainage into the nose. If you use other eye drops, wait at least 5 minutes between different drops to keep each one working.
Remove contact lenses before putting the drop in and wait 15 minutes before putting them back in if the product contains preservatives such as benzalkonium chloride. If you miss a dose, use it as soon as you remember unless it’s almost time for your next dose — then skip the missed one and go back to your regular schedule.
Common side effects & monitoring
The most frequent side effect is eye redness (conjunctival hyperemia). You might also notice darker eyelashes, thicker lashes, or gradual darkening of the iris color. Some people see a slight change in the skin around the eye (deepening of the eyelid crease) over months. Blurred vision, stinging, or dry eyes can happen right after instillation.
Keep regular follow-up visits. Your eye doctor will check IOP and look for changes in eye color, eyelash growth, or signs of irritation. If you have sudden vision loss, eye pain, or persistent redness, contact your doctor right away.
Tell your provider if you are pregnant, planning pregnancy, or breastfeeding. While systemic absorption is small, it’s important to weigh risks and benefits. Also mention any eye infections or recent eye surgery.
Small practical tips: store unopened bottles at room temperature away from heat and light; avoid touching the dropper tip to any surface; write the date you opened the bottle on the label and follow the expiration guidance on the package. With consistent nightly use and proper follow-up, latanoprost can be an easy and effective way to help protect your sight.
May, 12 2023