A fall can change your vision, and the cause is not always the eye itself. Vision depends on the eye, the nerve behind it, and the brain areas that steer the eyes and make sense of images, and a fall can disturb any of them.1Complete Care. When to Go to the ER for Blurry Vision After Hitting Your Head A blow that leaves the eye looking fine can still blur or double what you see. Some of these changes clear up as you heal, while a few threaten sight and need care the same day.
Vision Symptoms After a Fall That Need Emergency Care
Any vision change after hitting your head can mean the brain was affected, so get it checked. Blurry vision, double vision, light sensitivity, and brief vision loss are all possible.2Complete Care. When to Go to the ER for Blurry Vision After Hitting Your Head Go to the emergency room the same day for any of these:
- Sudden loss of vision in one or both eyes
- A curtain or shadow spreading across your sight, or a sudden shower of floaters or flashes
- Double vision that wasn’t there before the fall3PubMed Central. Traumatic bilateral fourth nerve palsy: Double vision induced by downward gaze after head injury
- An eye that bulges, feels tight or very painful, or won’t move normally, especially if you take blood thinners4PubMed. Orbital haemorrhage associated with orbital fractures in geriatric patients on antiplatelet or anticoagulant therapy
- Vision changes together with severe headache, vomiting, confusion, or drowsiness
Don’t drive yourself. Have someone take you, or call emergency services. Don’t press on or rub an injured eye. Note when the symptoms began and whether they’re getting worse, and bring a list of your medicines, especially any blood thinners.
Waiting to see if it clears is risky. Some eye and brain injuries worsen over hours rather than right away, and several sight-threatening injuries are treatable only if caught early.
If an older relative has fallen, ask them to cover each eye in turn and read something. Watch for squinting, tilting the head, or bumping into things on one side. Older adults may play down symptoms, so ask directly.
The ER team will usually ask how you fell, whether you lost consciousness, and exactly what your vision did, so a clear account helps them choose tests. Expect each eye to be checked separately for sharpness, eye movement, and pupil reaction. Depending on what they find, you may be sent for a CT scan or be seen by an eye specialist before you go home.
Injuries to the Eye and Eye Socket
Among people hospitalized for eye injuries from falls, about half had a bruised eye or surrounding tissue, including bleeding inside the front of the eye.5PubMed. Characteristics of Ophthalmic Trauma in Fall-Related Hospitalizations in the United States from 2000 to 2017 About 1 in 5 had an orbital fracture, a break in the bony eye socket.6PubMed. Characteristics of Ophthalmic Trauma in Fall-Related Hospitalizations in the United States from 2000 to 2017 About 1 in 7 had a cut eyelid.7PubMed. Characteristics of Ophthalmic Trauma in Fall-Related Hospitalizations in the United States from 2000 to 2017
The socket holds the muscles and nerves that position and move the eye.8Central Valley Eye Medical Group. How Orbital Trauma Affects Vision and Eye Movement So a fracture, swelling, or bleeding there can blur vision or make eye movement hard.9Central Valley Eye Medical Group. How Orbital Trauma Affects Vision and Eye Movement The most serious injuries include a ruptured eyeball and bleeding behind the eye that presses on it.10PubMed. Ocular trauma associated with falls in older people: A 10-year review from a state trauma service A broken eye socket can show itself in several ways: double vision, especially when looking up or down; numbness of the cheek or upper lip; an eye that looks sunken or sits lower than the other; and swelling that gets worse after you blow your nose.
A simple black eye bruises the skin but leaves vision normal. Blood visible in the front of the eye is not a simple bruise. Pain when you move the eye, or any change in vision, needs an exam.
A blow can damage the eye even when the socket holds. The eye sits in a bony socket, and a hit from something like a table edge or the ground can compress it and raise the pressure inside suddenly. That pressure can injure the lens, the iris, or the retina without breaking any bone. A normal-looking socket on a scan therefore doesn’t mean the eye was spared.
The eye exam includes drops that widen the pupil so the back of the eye can be seen. If a fracture or bleeding is suspected, you’ll have a CT scan.
A Detached Retina Even After a Minor Fall
A retinal detachment is when the retina, the light-sensing lining at the back of the eye, pulls away from its normal position. A sudden blow sends a shock through the eye that can tear the retina, and the rebound can pull it loose.11PubMed. Mechanism of traumatic retinal detachment in blunt impact: a finite element study In older adults injured in falls, detachment is one of the severe eye injuries seen.12PubMed. Ocular trauma associated with falls in older people: A 10-year review from a state trauma service
Minor falls can do it too. In one reported case, a simple fall from standing height led to a total detachment, because that person already had thin, weak areas of retina.13PubMed Central. Total retinal detachment occurring after minor head trauma
A detached retina shows up as a sudden shower of new floaters, like specks or cobwebs, and flashes of light, especially at the side of your vision. A shadow or curtain may then spread across your sight. Symptoms can begin days after the fall, not just right away.
Speed matters because repair works best before the center of the retina comes loose. Treatment may be laser, freezing, or surgery. Delays can mean permanent loss of part of your vision.
How a Concussion Changes Your Vision
Convergence insufficiency, which means trouble aiming both eyes together at close objects, is the most common eye problem after concussion.14PubMed Central. Correlation between Ocular and Vestibular Abnormalities and Convergence Insufficiency in Post-Concussion Syndrome In athletes checked within a month of a concussion, about 4 in 10 had it.15Concussion Alliance. Vision Therapy — Concussion Alliance Trouble focusing up close is also common.16Concussion Alliance. Vision Therapy — Concussion Alliance
Day to day, this feels like words blurring or swimming after a few minutes of reading. You may get headaches and eye strain with phone or computer use, lose your place on a page, or reread lines.
A normal eye chart doesn’t rule this out. Standard charts test sharpness, not how the eyes work together, so you can read 20/20 and still struggle with a book. Ask for an exam that checks eye teaming and focusing.
Concussion often affects the balance system along with the eye-movement system.17PubMed Central. Correlation between Ocular and Vestibular Abnormalities and Convergence Insufficiency in Post-Concussion Syndrome The inner ear tells the brain how your head moves so it can keep your eyes steady.18Vestibular Disorders Association. Vision Challenges with Vestibular Disorders When that fails, the world can seem to jump or bounce as you move your head.19PubMed Central. Traumatic brain injury and vestibulo-ocular function: current challenges and future prospects Even reading can be hard, because small head movements shake the words.20Vestibular Disorders Association. Vision Challenges with Vestibular Disorders
Bright light and screens often feel painful after a concussion. Lowering screen brightness and taking regular breaks helps. Sensitivity that lingers is worth mentioning to your doctor.
For many people, blurry or strained vision eases over days to a few weeks as the brain recovers. Some still have trouble with close work after that, and these lingering problems are often treatable. Rushing back to long stretches of reading or screen work can bring symptoms back, so building up in short, comfortable sessions is the usual approach.
Nerve and Brain Injuries Behind the Eye
Damage to the optic nerve, the cable from eye to brain, is a classic cause of vision loss after a head injury.21PubMed Central. Post-traumatic visual loss Even a low-force blow to the forehead can pass force back to where the nerve leaves the eye socket.22PubMed Central. A Systematic Literature Review on Traumatic Optic Neuropathy
The nerves that move the eyes can also be injured after a head blow, causing double vision.23PubMed Central. Traumatic bilateral fourth nerve palsy: Double vision induced by downward gaze after head injury One such nerve injury causes double vision mainly when looking down, which matters on stairs.24PubMed Central. Traumatic bilateral fourth nerve palsy: Double vision induced by downward gaze after head injury Brain injuries can cut off part of the field of view or make the eyes drift or track poorly.25PubMed. Mechanisms of TBI and visual consequences in military and veteran populations
A lost part of your visual field is easy to miss. You may bump into door frames on one side or miss words at the start or end of lines. People often blame their glasses instead.
When double vision comes from a nerve injury, a clinician asks you to follow a target in several directions. That shows which direction is weak and so which nerve or muscle is involved. Because the cause can be a nerve injury, a bruised muscle, or a socket fracture, imaging is often used to tell them apart. Some nerve injuries after a head blow improve over weeks to months, so doctors often monitor progress rather than expect an instant fix.
A head injury can also cause bleeding that spreads into the eye itself.26Journal of Neurosciences in Rural Practice. Terson syndrome following traumatic brain injury A tear in the neck artery after injury can show up first as eye symptoms such as a drooping lid and small pupil.27PubMed Central. Ocular manifestations of internal carotid artery dissection
Some symptoms appear later. Bleeding can build up over days, especially in older adults. A new headache, confusion, or vision change days after a fall needs urgent care, so keep watching for a week or two after a hard fall.
Why Older Adults and People on Blood Thinners Face More Risk
In older adults with a broken eye socket, those taking blood thinners had a higher risk of bleeding behind the eye, while aspirin users did not.28PubMed. Orbital haemorrhage associated with orbital fractures in geriatric patients on antiplatelet or anticoagulant therapy Blood thinners are more common with age, and falls are the leading cause of this bleeding.29PubMed. Retrobulbar haematoma in the era of anticoagulants Anyone on a blood thinner who falls and hurts the eye area should be checked promptly.
Bleeding behind the eye brings rapidly increasing swelling and a bulging eye, severe pain, and a tight, hard feeling. Vision dims, and sight can be threatened within hours.
Aspirin works on blood platelets, while blood thinners such as warfarin and newer tablets act on the clotting process itself, so don’t assume they carry the same risk. Still, tell the treating team about every medicine, including aspirin. Don’t stop a blood thinner on your own; doctors may need to adjust treatment if there’s bleeding.
Recovery and Treatment for Vision Problems After a Fall
Treatment depends on the cause. Eye teaming and focusing problems after a brain injury are often treated with vision therapy from specialist optometrists.30PubMed Central. Consensus Statement on Visual Rehabilitation in Mild Traumatic Brain Injury Bleeding into the eye from a brain injury can be removed with surgery.31PubMed. Visual Outcomes after Vitrectomy for Terson Syndrome Secondary to Traumatic Brain Injury
Vision therapy means guided eye exercises done in the clinic and at home. Prism glasses can ease double vision. Progress usually takes weeks to months.
For injuries to the eye itself, see an eye doctor. For concussion-related vision problems, a neuro-optometrist or neuro-ophthalmologist is the right specialist, and your family doctor can coordinate care. Go back if symptoms last beyond a few weeks, if new symptoms appear or vision worsens, or if you have trouble returning to reading, driving, or work.
When Poor Eyesight Leads to Falls
The link runs the other way too. Older adults seeing worse than 20/30 were nearly twice as likely to fall repeatedly.32PubMed. Visual impairment and falls in older adults: the Blue Mountains Eye Study Missing parts of the visual field and one type of cataract also raised repeat-fall risk.33PubMed. Visual impairment and falls in older adults: the Blue Mountains Eye Study Among older people with poor sight, glaucoma and balance problems raised fall risk.34PubMed Central. Risk factors of falls in elderly patients with visual impairment
Vision loss that comes on gradually is easy to adapt to, so many people don’t realize their sight has slipped until a fall reveals it. An eye exam after a fall therefore serves two purposes: finding injury and finding long-standing problems that may have contributed.
To prevent the next fall, keep glasses up to date and brighten stairs and hallways, adding night lights. Be careful with new or multifocal glasses on stairs, and remove trip hazards like loose rugs.