Not really, not safely. The only reversible, low-risk way to change apparent eye color is colored contact lenses fitted by an eye doctor. Every permanent procedure on the market (iris implants, keratopigmentation, laser depigmentation) carries documented rates of glaucoma, corneal damage, or vision loss high enough that the American Academy of Ophthalmology has issued a public warning against them. Honey drops and "color-changing" drops don't work and can scratch your cornea.
Below: the methods ranked by safety, with actual complication rates from published case series, plus a way to find out what color your eyes already read as.
| Method | Category | Reversible? | Documented risk |
|---|---|---|---|
| Prescription colored contacts | Safe + temporary | Yes | Infection if mishandled |
| Decorative contacts sold without prescription | Risky + temporary | Yes | Up to 16× higher infection risk, corneal scarring |
| Keratopigmentation (corneal tattoo) | Risky + permanent | No | Light sensitivity, infection, cornea damage |
| Laser iris depigmentation (Stroma) | Experimental | No | Not FDA-approved, long-term safety unknown |
| BrightOcular / NewColorIris implants | Dangerous + permanent | Removable, often with damage | 83% uveitis, 58% glaucoma |
| Honey drops / "color drops" / diet | Myth | N/A | Corneal abrasion, infection |
| Prostaglandin glaucoma drops | Real but slow side effect | No (often permanent) | 12–43% iris darkening over months |
There is no magic option in this list. There is one reasonable option (prescription contacts), several very bad options, and a lot of noise.
Colored contacts work by sitting on the surface of your eye with a tinted pattern over the iris area. Prescription circle lenses can shift a brown eye to blue or green convincingly, especially in photos. Worn correctly, they are the only method ophthalmologists generally consider acceptable.
The catch: in the US, every contact lens, including non-corrective decorative ones, is a medical device that requires a prescription. The FDA has stated this explicitly, noting that places selling decorative lenses over-the-counter without a prescription are breaking the law. That includes Halloween shops, gas stations, beauty supply stores, and a lot of TikTok-marketed sellers.
Why it matters: contacts have to be fitted to your cornea. A poorly fit lens scrapes the surface every blink, and microbial keratitis (corneal infection) is the headline risk. CDC surveillance data shows roughly 40.9 million US adults wear contacts, driving about 930,000 outpatient visits and 58,000 ER visits per year. Microbial keratitis runs roughly 2–4 per 10,000 wearers per year, 90% bacterial, with overnight wear and poor case hygiene as the biggest modifiable risks. Non-prescription decorative lenses (per FDA case reviews) carry a sixteenfold higher risk of microbial keratitis than properly fitted lenses. People have lost vision to single-night Halloween costume use.
If you want colored contacts, the boring answer is the right one: see an optometrist, get a fitting, buy from a licensed retailer. Don't sleep in them. Don't share them. Don't rinse them with tap water. That is how you get Acanthamoeba keratitis, which is the scary one.
Iris implants are folded silicone discs surgically inserted through a corneal incision and unfolded on top of the natural iris. They were originally designed for people born without irises or who lost iris tissue to trauma, a legitimate medical use. Adapting them to sit on top of a healthy iris, purely to change color, is where it went wrong.
The case literature on cosmetic BrightOcular and NewColorIris implants is uniformly bad. Mansour et al. (2016) in the British Journal of Ophthalmology followed 12 patients who received BrightOcular implants for purely cosmetic reasons:
Only one of the 12 patients was asymptomatic. The rest needed implant removal, often combined with further surgery to repair the damage. A follow-up 2018 case in the American Journal of Ophthalmology Case Reports documented a patient whose endothelial cell count dropped to 297/mm² (a healthy cornea typically has 2,000–3,000) within weeks, requiring bilateral explantation and endothelial keratoplasty (cornea transplant). Vision dropped from 20/60 to 20/300 in five weeks.
The AAO summarizes the device profile bluntly in its cosmetic iris implant statement: reduced vision or blindness, light sensitivity, elevated eye pressure leading to glaucoma, cataracts, corneal injury potentially requiring transplant, and persistent inflammation. These devices are not FDA-approved for cosmetic use, which is why the marketing happens via international clinics (Mexico, Panama, Tunisia, Turkey) and the complications come home. No published series suggests BrightOcular is safe for cosmetic implantation.
Keratopigmentation is the procedure that went viral after a 2024 wave of social media surgeries. It tattoos micronized mineral pigment into the corneal stroma, the middle layer of the cornea, in front of the iris. The pigment masks your real iris and shows the inked color instead. Cost in the US runs roughly $5,000–12,000 per eye. It is real medicine for therapeutic use (masking a damaged or disfigured iris). The cosmetic version, on healthy eyes, is the one in dispute.
The most-cited safety study is Alió et al. (2016) in Cornea, which followed 7 patients with no complications over 6 months to 2.5 years of follow-up, though 4 needed pigment retouching. A larger comprehensive review in Ophthalmology and Therapy and follow-up case work report the common complications:
The AAO included keratopigmentation in its 2024 warning on cosmetic eye color procedures. The cosmetic indication lacks long-term safety data and puts a healthy cornea at risk for no medical reason. The procedure is irreversible; pigment cannot be neatly removed. Keratopigmentation is meaningfully safer than iris implants short-term, but the data don't extend long enough to call it safe over a lifetime. You are betting decades of vision on years of data.
Stroma Medical is developing a laser that fires computer-guided pulses to selectively destroy the brown melanocytes in the front layer of the iris, revealing the structural blue underneath. Brown eyes turn blue, in theory permanently, over weeks as the body clears the pigment.
Status: investigational, not FDA-approved. Per the AAO, Stroma has conducted first-in-human trials abroad but the device has not undergone US clinical trial testing to determine safety risks. The theoretical concern is straightforward: the iris regulates how much light enters your eye, and pigment is part of how. Destroying iris pigment could increase light sensitivity and glare, and could clog the drainage angle of the eye with pigment debris, raising intraocular pressure and risking pigmentary glaucoma. There is no published, peer-reviewed long-term outcomes study. Until that exists, this is research, not treatment.
A short tour of methods that the internet keeps recycling and that have zero clinical support.
Honey eye drops. The viral TikTok claim is that diluted honey will lighten your eye color. The AAO's direct answer is that honey cannot penetrate to the iris where the pigment actually lives, and that the acid in honey plus solid particulates can scratch the corneal surface and introduce bacteria. The mechanism for color change isn't just unproven; it's biologically impossible.
"Color-changing" eye drops. A newer crop of products marketed online claim to adjust iris melanin in hours. Harvard Health's review quotes Mass Eye and Ear's Dr. Michael Boland: "I've found zero descriptions of how they work in terms of a plausible mechanism." The AAO lists the documented risks of these products as inflammation, infection, light sensitivity, elevated eye pressure, and permanent vision loss.
Raw vegan diet / sun exposure / chamomile tea. Wellness influencer claims that diet can lighten or change iris pigment. Iris melanin is set during development by the OCA2 and HERC2 genes (see our piece on the rarest eye color). You cannot add or subtract melanin from melanocytes by drinking smoothies. No clinical evidence supports any of these methods.
"Color My Eyes" hypnotism / visualization. Self-explanatory.
Eye color is not perfectly fixed in adulthood, but the things that change it are mostly medical, not voluntary.
Prostaglandin glaucoma drops. Latanoprost, bimatoprost, and travoprost are first-line glaucoma medications with a well-documented side effect: they darken the iris over months to years. Studies in Eye (Nature) report iris hyperpigmentation in 12% of phase 3 trial patients, with rates up to 42.8% in mixed-color (hazel, green-brown, blue-brown) eyes after roughly 7 months. The mechanism is increased melanin granule density in iris melanocytes, and the change is largely permanent even after stopping the drops.
Slow drift with age. Some people experience gradual darkening or lightening over decades. Pediatric ophthalmology research referenced in the Newborn Eye Screening Test follow-up notes 10–20% of Caucasian children continue shifting iris color into adulthood. Brown-eyed adults rarely lighten; light-eyed adults occasionally darken.
Trauma, Horner's syndrome, uveal melanoma, Fuchs heterochromic iridocyclitis. All real medical causes of acquired iris color change. If one of your eyes changes color in adulthood without explanation, that warrants an ophthalmologist visit, not a celebration.
None of these are routes you can take voluntarily.
Before you consider doing anything cosmetic to your eyes, it is worth getting an honest read on what color they actually are. A lot of people are wrong about this, not because they're confused about themselves, but because eye color reads dramatically differently depending on lighting, clothing, screen calibration, and pupil size.
Blue, green, and gray eyes are partly structural color produced by Rayleigh and Tyndall scattering, the same physics that makes the sky blue. As the AAO points out, blue eyes contain no blue pigment at all. That structural quality means they literally shift with the light source. The eyes you see in your bathroom mirror under warm bulbs are not the eyes a stranger sees outdoors in noon sun.
Some specific things that distort how people perceive their eye color:
A lot of "I thought my eyes were brown but they're actually green" moments happen the first time someone runs standardized photo analysis. Many people were assigned a category based on a few childhood photos in poor lighting and have never updated it.
Curious what your actual eye color reads as under analysis? Our Eye Color Analyzer runs iris segmentation and pigment classification on a selfie and returns a category with confidence. Free, no signup, instant. Take the photo in diffuse natural light, no glasses, looking straight at the camera. Run it on two or three photos under different lighting. If they disagree, you are between two categories (which is the real answer for a lot of people). Pair it with our Face Shape Analyzer and Facial Harmony if you want more depth.
A lot of people who think they want to change their eye color end up satisfied just figuring out that the AI reads them as the color they were hoping for.
A few honest takes:
Want the AI read on your own eyes before considering anything irreversible? Start with the Eye Color Analyzer, then check the Face Shape Analyzer and Facial Harmony tools if you want a full read on what the model sees. All free, no signup.