why do people sleep with their eyes half open

The medical term is "lagophthalmos" if the person is unable to close their eyes at night. There are several factors involved, and unless it's due to physical obstruction, lid archetecture (such as short lid length (due to surgery etc)), or facial nerve (CN VII) problems, it's not well understood. I have seen numerous people with varying degrees of this over the years. For most of those people, it's an intermittent thing. Tears are essential for eye tissue health, including cleaning and avoiding infection. People complain of dry or irritated eyes mostly. But in more extensive cases, keratitis and ulcers can occur, which are bad.


If it's frequent, tell the person to make sure they tell their eye doctor (or if they don't have one, get it checked out sometime) so that the health of their eye tissue can be evaluated. Another possibility is Grave's disease - in that condition, the entire eyeball protrudes and sometimes the eyelids aren't long enough to cover them adequately. But what you're describing is probably not Grave's disease.
Do You Sleep With Your Eyes Partially Open? Do you ever wake in the morning feeling like your eyes are dry, tired, and/or itchy? ThatБs normal occasionally, but if it happens often you may be having a problem with nocturnal lagophthalmosБsleeping with your eyes partially (or fully) open.


It may just sound like a bizarre little quirk, but it could potentially lead to major problems with your eye health. Why Does This Occur? Lagophthalmos is defined as a condition where oneБs eyelids canБt close enough to cover the eye completely. The term nocturnal lagophthalmos is used to describe the condition when it occurs while youБre sleeping. б It can be caused by conditions such asб stroke, trauma, cosmetic surgery, skin conditions, facial nerve palsies, BellБs palsy, or thyroid disease.


Sometimes itБs hereditary. If children experience it, they often grow out of it. БHow Can I Know If I Have This Condition? Б Most people wouldnБt know they have this condition because 1) theyБve probably never heard of or suspected it, and 2) how would they watch themselves sleeping, right? ThatБs where you need another person to check your eyes in the middle of the night if you suspect this condition. Have your helper estimate how far open your eyelids are so that you can let us know when you visit us. Long-Term,б Lagophthalmos Can Be Harmful To Your Eyes Moisture is essential for your healthy eyesight. б Tears form a protective barrier over the surface of your eyes, cleaning and restoring the cornea.


Initially, lagophthalmosб may be merely irritating. You may experience dry eye symptoms and excessive tearing. Maybe some blurriness in your vision as well. But when you go too long, you can experience scratching, infection, and scarring on the surface of your eye. All of these are problems that can severely and permanently hurt your vision. Learn More About Dry Eyes Treatб Lagophthalmos Before It Becomes A Problem There are a few really easy things you can try out for yourself to protect your eyes.


You might consider wearing an eye mask at night. Some patients even tape down their eyelids to sleep. б We can prescribe some artificial tear drops which you can use at night and in the morning to keep your eyes well lubricated. In serious cases, there are some surgical options. If you suspect you have this condition, please talk to us! We can help you determine whatБs best for you. Thanks for being our valued patient and friend. Please share this information with someone you care about! Previous Post