HEALTH WARNING: Glaucoma has no early symptoms. Read this before your next birthday.
Glaucoma steals your sight in silence.
Surgery can slow it.
Nothing brings back what's already gone.
Glaucoma surgery costs about
$1,000 to $6,300 per eye
In a major clinical trial, up to
48% of those operations failed within 5 years
And
not one of them restores the vision you have already lost.
Illustration only. In untreated glaucoma, sight fades over years, painlessly, as optic nerve fibres die. It does not come back.
The numbers
eye specialists
don't want you to ignore
Glaucoma is not rare, and it is not a problem for “old people somewhere else.” These figures come from the researchers and institutions who track it.
80M
people live with glaucoma worldwide. Projected to pass 112 million by 2040.
Glaucoma Research Foundation
1 in 2
people with glaucoma don’t know they have it. The disease has no early symptoms.
World Glaucoma Association / Johns Hopkins Medicine
5%
of Nigerian adults aged 40 and above have glaucoma (682 of 13,591 examined).
Nigeria National Blindness Survey, BMC Ophthalmology, 2015
94%
of Nigerians with glaucoma did not know it. Only 5.6% had ever been told.
Nigeria National Blindness Survey, BMC Ophthalmology, 2015
1 in 5
Nigerians with glaucoma were already blind when they were examined.
Nigeria National Blindness Survey, BMC Ophthalmology, 2015
16.7%
of all blindness in Nigeria is caused by glaucoma, the second biggest cause after cataract (43%).
Abdull et al., Investigative Ophthalmology & Visual Science, 2009
22M
people are projected to be blind from glaucoma by 2040, up from 8.4 million in 2010.
Glaucoma Research Foundation
1 in 2
people worldwide who need cataract surgery cannot get it. Cataract still blinds 94 million people.
World Health Organization
The Glaucoma Research Foundation is direct about this: there is no cure for glaucoma, and vision loss from the disease is irreversible.
Advanced, untreated eye disease. Once the optic nerve or lens is severely damaged, sight cannot simply be switched back on.
What "irreversible" actually looks like
Glaucoma damages the optic nerve, and nerve fibres that die do not grow back. That is why the Glaucoma Research Foundation and the World Health Organization keep repeating the same message: find it early, because late is permanent.
These are not rare cases from a textbook. In Nigeria's national survey, 1 in 5 people with glaucoma were already blind when examined.
The surgery trap:
expensive, repeatable, and never a rewind button
Surgery is often necessary, and it can protect vision that is still there. But here is what the price tag does not tell you.
Laser (SLT)
$1,000 to $2,000
Short-term pressure drop. Often needs repeat sessions after 1 to 2 years.
Trabeculectomy
about $4,200
39% had surgical failure by year 5 in a major randomized trial.
Tube shunt / microshunt
about $6,300 and higher
48% failure at 5 years for tube surgery in the same trial. Some patients still need drops after.
Daily pressure drops
$20 to several hundred per month
Lifelong. Skipping them lets the nerve keep dying.
Costs: Glaucoma Research Foundation, 2025. Failure rates: Primary Tube Versus Trabeculectomy Study, 5-year results, American Academy of Ophthalmology. “Failure” includes pressure staying too high or reoperation.
Surgery can save the vision you have. It will not improve it. Lost sight cannot be recovered.
Read this twice: if your doctor has prescribed drops, laser or surgery, do them. Nothing on this page replaces that. The question this page asks is what you are doing, every day, to protect the nerve between those appointments, or before your first one.
The part nobody tells you:
your brain is hiding the damage from you
Most people imagine going blind as things getting dark or blurry. Glaucoma does not work like that. It eats your vision from the outside in, and your brain quietly patches the hole so the picture looks normal.
Each eye covers for the other. The brain fills gaps using guesswork. Johns Hopkins Medicine notes that people typically notice nothing until significant optic nerve damage has already happened, because the first blind spots form in the side vision.
You can lose a large part of your sight and still read this sentence perfectly.
Normal eye pressure does not mean you are safe
Everyone has heard that glaucoma is “high pressure in the eye.” Here is the twist. In Nigeria’s national survey, more than half of the eyes with glaucoma, 56%, had pressure in the normal range. If a screening only checks pressure, it can miss more than half the cases.
That is why researchers now look beyond pressure at what happens to the optic nerve itself: how well it is fed by blood, and how much oxidative stress its cells are under. Those are the areas where nutrition and antioxidants get studied. They are also the areas Zumifa’s ingredients are chosen for.
Who is at higher risk
- People of African descent. Johns Hopkins calls glaucoma the leading cause of blindness in people of African descent.
- Anyone over 40, and especially over 60. Prevalence climbs from 0.6% at ages 40 to 49 up to 8.3% at 80 and above.
- People with a sibling or parent with glaucoma. Family history is one of the strongest risk factors.
- People with diabetes, high blood pressure or thin corneas.
- Long-term steroid users. Steroid tablets, injections, creams and some eye drops can raise eye pressure in some people. Tell your doctor if you use them regularly.
The cataract mistake that keeps people half-blind
A cataract is not an infection. Proteins in the eye’s lens break down and clump, and the lens turns cloudy. Antibiotic drops do not clear that. They can only treat infection. Cataract surgery, which the WHO describes as one of the most cost-effective procedures in all of health care, is the treatment that removes it. Waiting on the wrong remedy is how many people lose years of sight they did not need to lose.
What to do this week
Ask an optometrist or ophthalmologist for a full glaucoma check: eye pressure, an optic nerve exam and a visual field test. It takes under an hour, and it is the only way to catch damage while it can still be stopped from getting worse. Then tell your parents, siblings and adult children to go too.
Between check-ups,
feed the nerve
that can't feed itself
Zumifa Herbal Capsule combines three plants long studied for their effects on eye tissue: one for protective eye pigments, one for circulation, one for inflammation and oxidative stress. It is a nutritional support supplement, not a medicine.
Tagetes erecta
African marigold
The world’s main commercial source of lutein and zeaxanthin, the yellow pigments that build up in the macula at the centre of your retina. They filter blue light and act as antioxidants. Your body cannot make them, so they have to come from food or supplements. In the NIH’s AREDS2 trial, lutein and zeaxanthin were studied in people with age-related macular degeneration.
BEST-STUDIED OF THE THREE
Ginkgo biloba
Maidenhair tree leaf
Rich in flavonoids and terpenoids that affect blood vessel function and circulation. Some small early studies have looked at ginkgo and blood flow to the optic nerve, including in normal-tension glaucoma. The evidence is promising but limited, so we say supports circulation, and nothing bigger.
EARLY CLINICAL EVIDENCE
Curcuma longa
Turmeric
Its active compound, curcumin, is a well-known antioxidant with anti-inflammatory activity. Most eye-specific research so far is in laboratory and early-stage studies, where curcumin has been examined for its effect on oxidative stress in retinal cells. Absorption improves with black pepper, so it pairs naturally with the other ingredients.
EMERGING RESEARCH
Protect
Marigold-derived lutein and zeaxanthin sit in the retina and help shield it from blue light and oxidative damage.
Circulate
Ginkgo flavonoids support healthy blood flow, and the optic nerve depends on a steady supply of it.
Calm
Curcumin helps balance inflammation and oxidative stress, two pressures that wear down delicate eye tissue over years.
Food first.
Your plate is your first line of eye defence.
Foods that naturally contain lutein and zeaxanthin.
Before any capsule, the strongest habit you can build is what you eat. The same yellow pigments found in Zumifa’s marigold extract, lutein and zeaxanthin, are found in everyday foods. Your body cannot make them, so they only get to your retina if they get to your plate.
- Dark leafy greens: spinach, kale and collard greens are among the richest sources. Similar leafy vegetables commonly cooked in Nigerian homes belong on this list too.
- Egg yolks: smaller amounts, but the natural fat in the yolk helps your body absorb them well.
- Corn, orange bell peppers, peas and broccoli: colourful, easy to add to rice, stews, salads and sauces.
Simple trick: lutein and zeaxanthin are fat-soluble. Cook or eat your greens with a little healthy oil so more of it is absorbed.
Other habits matter for the eyes as well: keeping blood pressure and blood sugar under control, not smoking, and wearing sunglasses outdoors. High blood sugar and diabetes are major causes of eye damage.
Eating well supports eye health. It does not cure glaucoma or replace an eye exam. Food and Zumifa are meant to work alongside your doctor’s care, not instead of it.
What Zumifa is, and what it is not
- It is designed to support eye health with antioxidants and circulation-supporting plant compounds.
- It does not cure glaucoma, reverse optic nerve damage or replace surgery, laser or prescribed drops.
- Never stop a prescribed eye medication. Ask your eye doctor before adding any supplement, especially if you take blood thinners, since ginkgo can affect bleeding.
NAFDAC registered: A7-102315L. Verify it yourself on the NAFDAC website.
What customers say
Add real, verified customer reviews here. Use their own words about how they feel and what they noticed. Avoid reviews claiming a cure or restored sight, which are not supported by the evidence and can violate advertising rules.
Every month you wait
is a month the nerve goes unprotected
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Important: Zumifa Herbal Capsule is a dietary supplement. These statements have not been evaluated as a diagnosis, treatment, cure or prevention of any disease. Glaucoma, cataracts and other eye conditions require examination and treatment by a qualified eye care professional. Results vary between individuals. Do not stop or change any prescribed treatment without your doctor’s advice. Seek urgent care for sudden eye pain, severe headache with nausea, halos around lights or sudden vision loss.
Sources
- Kyari et al., Prevalence and types of glaucoma in Nigeria, BMC Ophthalmology, 2015
- Abdull et al., Causes of blindness and visual impairment in Nigeria, IOVS, 2009
- Glaucoma Research Foundation, Glaucoma facts and stats
- Glaucoma Research Foundation, Glaucoma worldwide: a growing concern
- Glaucoma Research Foundation, Glaucoma treatments, surgeries and costs
- American Academy of Ophthalmology, Primary Tube Versus Trabeculectomy Study 5-year results
- Johns Hopkins Medicine, Glaucoma
- World Health Organization, Vision impairment and blindness
- World Glaucoma Association, What is glaucoma?
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