Eyelashes that curl inward and touch the eye are usually caused by one of two conditions: the lashes themselves grow in the wrong direction (trichiasis), or the entire eyelid turns inward and pushes normal lashes against the eye (entropion). Both can feel like a constant foreign object in your eye, and both can damage the clear front surface of your eye if left untreated. Understanding which one you’re dealing with matters because the fixes are different.
Trichiasis vs. Entropion
With trichiasis, the eyelid itself sits in its normal position, but individual lashes grow backward toward the eyeball instead of outward. The problem is at the level of the hair follicle. With entropion, the entire eyelid margin rolls inward, dragging all the lashes with it. If you gently pull down your lower lid and the lashes spring back inward when you let go, that points toward entropion. If the lid sits flat but a few specific lashes point the wrong way, that’s more likely trichiasis.
The distinction matters for treatment. Trichiasis is managed by targeting the misdirected lashes. Entropion typically requires repositioning the eyelid itself, often surgically.
Chronic Eyelid Inflammation
The most common reason lashes start growing inward over time is chronic blepharitis, a persistent low-grade inflammation of the eyelid margins. When the oil glands along your lash line stay inflamed for months or years, the tissue around the lash follicles gradually scars. That scarring can redirect the angle of lash growth, pointing them toward the eye instead of away from it.
Blepharitis also thickens the lid edges, clogs the oil glands, and destabilizes the tear film. This creates a cycle: the misdirected lashes irritate the eye surface, which triggers more inflammation, which causes more scarring. Over time, fibrosis within the glands can become permanent, meaning the structural changes won’t reverse on their own even if the inflammation calms down. You may also notice lash loss (gaps along the lash line) alongside the misdirected lashes, since the same scarring process can destroy follicles entirely.
Age-Related Eyelid Loosening
Involutional entropion is the most common form in older adults. As you age, the tendons and muscles that hold your lower eyelid taut gradually stretch and weaken. The lid loses its tension against the eyeball and begins to roll inward, especially when you blink or squeeze your eyes shut. This is more common in the lower lid and tends to get worse over time without correction.
An Extra Row of Lashes
Some people are born with a second row of eyelashes growing from the oil gland openings along the lid margin, a condition called distichiasis. These extra lashes can be thick or thin, pigmented or nearly invisible, and they grow directly toward the eye surface. The number can range from just a handful to more than two dozen across the eyelids.
Distichiasis sometimes runs in families. A hereditary form linked to mutations in a gene called FOXC2 causes both the extra lash row and swelling in the limbs (lymphedema). This inherited version appears in an autosomal dominant pattern, meaning you only need to inherit it from one parent. It can also occur as an isolated finding with no other associated conditions.
Autoimmune and Scarring Conditions
Less commonly, autoimmune diseases can scar the inner eyelid surface and force lashes inward. Ocular cicatricial pemphigoid is one such condition. It causes progressive scarring beneath the conjunctiva (the clear tissue lining the inside of your eyelids), which gradually shortens the space between the lid and the eyeball. As the scarring advances, it pulls the lid margin inward and causes both entropion and trichiasis. Early signs include chronic dry eye, redness, and blepharitis that doesn’t respond to standard treatments. A distinguishing feature is progressive symblepharon, where the inner eyelid begins fusing to the eyeball surface.
Trachoma, a bacterial infection still common in parts of Africa and Asia, causes similar scarring. Repeated infections scar the inner eyelid, eventually turning the lashes inward. It remains a leading cause of preventable blindness worldwide.
What Inward Lashes Do to Your Eye
When lashes rub against the cornea, they act like fine sandpaper on every blink. The earliest symptoms are redness, excessive tearing, and sensitivity to bright light. You may feel a persistent gritty sensation, as though something is stuck in your eye.
Prolonged contact can scratch the cornea (a corneal abrasion), and those scratches can become infected or develop into a corneal ulcer, a deeper wound that can scar and permanently affect vision. One particularly dangerous pattern: if lashes have been touching your eye for a long time, you can actually get used to the sensation and stop feeling it. The rubbing continues silently, potentially causing permanent corneal damage without any warning pain.
How Inward Lashes Are Treated
The simplest short-term fix is epilation, which means plucking the offending lashes with fine forceps. It provides immediate relief, but the lashes grow back. A study comparing epilation to surgery for minor trichiasis found that by 24 months, about half of people in the epilation group still had one or more lashes touching the eye. The cumulative failure rate for epilation was 13.2% over two years (defined as five or more lashes returning or needing surgery), compared to just 2.2% for surgical correction.
For recurring or widespread trichiasis, more permanent options target the follicle itself. Electrolysis and radiofrequency ablation destroy the lash root so it can’t regrow. When entropion is the underlying problem, surgery repositions the eyelid margin so it faces outward again. These procedures are typically done under local anesthesia, and recovery takes a few weeks.
Preventing Inflammation-Driven Lash Changes
Since chronic blepharitis is the most common preventable cause of trichiasis, keeping your lid margins clean can slow or stop the scarring that redirects lash growth. Daily lid cleaning removes debris, bacteria, and mites that fuel inflammation.
You can clean your lash line at home using a cotton swab, lid brush, or pre-moistened wipe after washing your hands and face. Effective cleansers include diluted tea tree oil products (typically around 5% concentration), hypochlorous acid sprays, and specially formulated lid scrubs. Tea tree oil has antiparasitic, antibacterial, and anti-inflammatory properties, and multiple studies have shown it reduces Demodex mites (tiny parasites that colonize lash follicles), clears lash-line scales, and improves symptoms. Baby shampoo was once a common recommendation, but research suggests it can disrupt the eye’s natural surface environment, so purpose-made lid cleansers are a better choice.
Consistency matters more than intensity. A gentle daily routine prevents the buildup of inflammation that leads to permanent follicle damage over months and years.