The existence/presence of preservatives in the formulation of eye drops to maintain/keep sterility of them are necessary.
Eye drops are necessary.
While they might harm the surface of the eye/eye surface, and this becomes more important when long-term use is required/ it is needed to be consumed/used for a long period of time or permanently/ permanent eye drops.
For example:
Long-term use/usage of artificial tear drops or lifelong/permanently lifetime/long-term use of eye drops for treatment/to cure Glaucoma or increased eye pressure.
For this reason, /Because of this, Salamat Sazan Pars Buali Company has started/begun to produce some preservatives-free formulations.
Multi-dose preservative-free products are more economical for the patient than single-dose vials without preservative.
 

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Dry eyes

Overview

Dry eye disease is a common condition that occurs when your tears aren't able to provide adequate lubrication for your eyes. Tears can be inadequate and unstable for many reasons. For example, dry eyes may occur if you don't produce enough tears or if you produce poor-quality tears. This tear instability leads to inflammation and damage of the eye's surface.

Dry eyes feel uncomfortable. If you have dry eyes, your eyes may sting or burn. You may experience dry eyes in certain situations, such as on an airplane, in an air-conditioned room, while riding a bike or after looking at a computer screen for a few hours.

Treatments for dry eyes may make you more comfortable. These treatments can include lifestyle changes and eye drops. You'll likely need to take these measures indefinitely to control the symptoms of dry eyes.

Symptoms

Signs and symptoms, which usually affect both eyes, may include:

• A stinging, burning or scratchy sensation in your eyes
• Stringy mucus in or around your eyes
• Sensitivity to light
• Eye redness that progresses through the day
• A sensation of having something in your eyes
• Difficulty wearing contact lenses
• Difficulty with nighttime driving
• Watery eyes, which is the body's response to the irritation of dry eyes
• Blurred vision or eye fatigue

Causes

Dry eyes are caused by a variety of reasons that disrupt the healthy tear film. Your tear film has three layers: fatty oils, aqueous fluid and mucus. This combination usually keeps the surface of your eyes lubricated, smooth and clear. Problems with any of these layers can cause dry eyes.

Reasons for tear film dysfunction are many, including hormone changes, autoimmune disease, inflamed eyelid glands or allergic eye disease. For some people, the cause of dry eyes is decreased tear production or increased tear evaporation.

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Tear glands and tear ducts

The tear glands located above each eyeball, called the lacrimal glands, continuously supply tear fluid that's wiped across the surface of your eye each time you blink your eyelids. Excess fluid drains through the tear ducts into the nose.

Decreased tear production

Dry eyes can occur when you're unable to produce enough liquid tears. Common causes of decreased tear production include:

• Aging
• Certain medical conditions including Sjogren's syndrome, allergic eye disease, rheumatoid arthritis, lupus, scleroderma, sarcoidosis, thyroid disorders or vitamin A deficiency
• Certain medicines, including antihistamines, decongestants, hormone replacement therapy, antidepressants, and medicines for high blood pressure, acne, birth control and Parkinson's disease
• Corneal nerve desensitivity caused by contact lens use, nerve damage or laser eye surgery, though symptoms of dry eyes related to this procedure are usually temporary

Increased tear evaporation

The oil film produced by small glands on the edge of your eyelids (meibomian glands) might become clogged. Blocked meibomian glands are more common in people with rosacea or other skin disorders.

Common causes of increased tear evaporation include:

• Posterior blepharitis (meibomian gland dysfunction)
• Blinking less often, which tends to occur with certain conditions, such as Parkinson's disease; or when you're concentrating during certain activities, such as while reading, driving or working at a computer
• Eyelid problems, such as the lids turning outward (ectropion) and the lids turning inward (entropion)
• Eye allergies
• Preservatives in topical eye drops
• Wind, smoke or dry air
• Vitamin A deficiency

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Risk factors

Factors that make it more likely that you'll experience dry eyes include:

• Being older than 50. Tear production tends to diminish as you get older. Dry eyes are more common in people over 50.
• Being a woman. A lack of tears is more common in women, especially if they experience hormonal changes due to pregnancy, using birth control pills or menopause.
• Eating a diet that is low in vitamin A, which is found in liver, carrots and broccoli, or low in omega-3 fatty acids, which are found in fish, walnuts and vegetable oils.
• Wearing contact lenses or having a history of refractive surgery.

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Complications

People who have dry eyes may experience these complications:

• Eye infections. Your tears protect the surface of your eyes from infection. Without adequate tears, you may have an increased risk of eye infection.
• Damage to the surface of your eyes. If left untreated, severe dry eyes may lead to eye inflammation, abrasion of the corneal surface, corneal ulcers and vision loss.
• Decreased quality of life. Dry eyes can make it difficult to perform everyday activities, such as reading.

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Prevention

If you experience dry eyes, pay attention to the situations that are most likely to cause your symptoms. Then find ways to avoid those situations in order to prevent your dry eyes symptoms. For instance:

• Avoid air blowing in your eyes. Don't direct hair dryers, car heaters, air conditioners or fans toward your eyes.
• Add moisture to the air. In winter, a humidifier can add moisture to dry indoor air.
• Consider wearing wraparound sunglasses or other protective eyewear. Safety shields can be added to the tops and sides of eyeglasses to block wind and dry air.
• Take eye breaks during long tasks. If you're reading or doing another task that requires visual concentration, take periodic eye breaks. Close your eyes for a few minutes. Or blink repeatedly for a few seconds to help spread your tears evenly over your eyes.
• Be aware of your environment. The air at high altitudes, in desert areas and in airplanes can be extremely dry. When spending time in such an environment, it may be helpful to frequently close your eyes for a few minutes at a time to minimize evaporation of your tears.
• Working at a computer. reading or watching television can dry your eyes out. This is because you don’t blink as often as you normally do. Take breaks every 10 minutes, give your eyes a rest and try to blink more frequently to help your eyes regain some of the moisture they've lost.
• Position your computer screen below eye level. If your computer screen is above eye level, you'll open your eyes wider to view the screen. Position your computer screen below eye level so that you won't open your eyes as wide. This may help slow the evaporation of your tears between eye blinks.
• Stop smoking and avoid smoke. If you smoke, quit-smoking. If you don't smoke, stay away from people who do. Smoke can worsen dry eyes symptoms.
• Use artificial tears regularly. If you have chronic dry eyes, use eye drops even when your eyes feel fine to keep them well lubricated.
• Medications. If you have symptoms of dry eyes and take medication, read the label. Some drugs, such as antihistamines, beta-blockers, and some antidepressants, can affect your tears and dry out your eyes. Talk with your doctor to find out if this is a problem for you.

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Diagnosis

Tests and procedures that may be used to determine the cause of your dry eyes include:

• A comprehensive eye exam. An eye exam that includes a complete history of your overall health and your eye health can help your eye care specialist diagnose the cause of your dry eyes.
• A test to measure the volume of your tears. Your eye care specialist may measure your tear production using the Schirmer tear test. In this test, blotting strips of paper are placed under your lower eyelids. After five minutes your eye care specialist measures the amount of strip soaked by your tears.

• A test to determine the quality of your tears. Other tests use special dyes in eye drops to determine the surface condition of your eyes. Your eye care specialist looks for staining patterns on the corneas and measures how long it takes before your tears evaporate.
• A tear osmolarity test. This type of test measures the composition of particles and water in your tears. With dry eye disease, there will be less water in your eyes.
• Tear samples to look for markers of dry eye disease, including elevated matrix metalloproteinase-9 or decreased lactoferrin.

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Treatment

For most people with occasional or mild dry eye symptoms, it's enough to regularly use nonprescription eye drops, also called artificial tears. If your symptoms are persistent and more serious, you have other options. What you do depends on what's causing your dry eyes.

Some treatments focus on reversing or managing a condition or factor that's causing your dry eyes. Other treatments can improve your tear quality or stop your tears from quickly draining away from your eyes.

Treating the underlying cause of dry eyes

In some cases, treating an underlying health issue can help clear up the signs and symptoms of dry eyes. For instance, if a medication is causing your dry eyes, your eye care specialist may recommend a different medicine that doesn't cause that side effect.

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Medications

Prescription medicines used to treat dry eyes include:

• Medicines to reduce eyelid inflammation. Inflammation along the edge of your eyelids can keep oil glands from secreting oil into your tears. Your eye care specialist may recommend antibiotics to reduce inflammation. Antibiotics for dry eyes are usually taken by mouth, though some are used as eye drops or ointments.
• Eye drops to control cornea inflammation. Inflammation on the surface of your eyes (cornea) may be controlled with prescription eye drops that contain the immune-suppressing medicine cyclosporine or corticosteroids. Corticosteroids are not ideal for long-term use due to possible side effects.
• Tear-stimulating medicines. Medicines called cholinergics (pilocarpine) help increase tear production. Possible side effects include sweating.
• Eye drops made from your own blood. These are called autologous blood serum drops. They may be an option if you have severe dry eye symptoms that don't respond to any other treatment. To make these eye drops, a sample of your blood is processed to remove the red blood cells and then mixed with a salt solution.

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Other procedures

Other procedures that may be used to treat dry eyes include:

• Closing your tear ducts to reduce tear loss. Your eye care specialist may suggest this treatment to keep your tears from leaving your eye too quickly. This can be done by partially or completely closing your tear ducts, which normally serve to drain tears away.
• Using special contact lenses. Some people with severe dry eyes may opt for special contact lenses that protect the surface of the eyes and trap moisture. These are called scleral lenses or bandage lenses.
• Unblocking oil glands. Warm compresses or eye masks used daily can help clear up blocked oil glands. A thermal pulsation device is another way to unclog the oil glands, but it is unclear whether this method provides any advantage over warm compresses.
• Using light therapy and eyelid massage. A technique called intense-pulsed light therapy followed by massage of the eyelids may help people with severe dry eyes.

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Self care

You may be able to manage your dry eyes with frequent eyelid washing and use of nonprescription eye drops or other products that help lubricate your eyes. If your condition is long term (chronic), use eye drops even when your eyes feel fine to keep them well lubricated.

Selecting and using nonprescription products for dry eyes

A variety of nonprescription products for dry eyes are available, including eye drops, also called artificial tears. Talk with your eye care specialist about which might be best for you.

Artificial tears may be all you need to control mild dry eye symptoms. Some people need to put drops in several times a day, and some use them only once a day.

Consider these factors when selecting a nonprescription product:

• Preservative vs. nonpreservative drops. Preservatives are added to some eye drops to prolong shelf life. You can use eye drops with preservatives up to four times a day. But using the preservative drops more often can cause eye irritation.

Nonpreservative eye drops come in packages that contain multiple single-use vials. After you use a vial, you throw it away. If you rely on eye drops more than four times a day, nonpreservative drops are safe.

• Drops vs. ointments. Lubricating eye ointments coat your eyes, providing longer lasting relief from dry eyes. But these products are thicker than eye drops and can cloud your vision. For this reason, ointments are best used just before bedtime. Eye drops can be used at any time and won't interfere with your vision.
• Drops that reduce redness. It's best to avoid these as your solution for dry eyes, as prolonged use can cause irritation.

Washing your eyelids to control inflammation

For people with blepharitis and other conditions that cause eyelid inflammation that blocks the flow of oil to the eye, frequent and gentle eyelid washing may help. To wash your eyelids:

• Apply a warm washcloth to your eyes. Wet a clean cloth with warm water. Hold the cloth over your eyes for five minutes. Rewet the cloth with warm water when it cools. Gently rub the washcloth over your eyelids — including the base of the eyelashes — to loosen any debris.
• Use a mild soap on your eyelids. Use baby shampoo or another mild soap. Put the cleanser on your clean fingertips and gently massage your closed eyes near the base of your eyelashes. Rinse completely.

Source:

https://www.mayoclinic.org/diseases-conditions/dry-eyes/symptoms-causes/syc-20371863

https://www.aao.org/eye-health/tips-prevention/dry-eye-tips?gad_source=1&gclid=CjwKCAjwzIK1BhAuEiwAHQmU3qH1Dj6amQeTmA7id-ND5f_XcCOorKmbVf8bR0OugRQPKARBfLwtNRoCb9cQAvD_BwE

https://www.webmd.com/eye-health/ss/slideshow-dry-eyes

https://www.hopkinsmedicine.org/health/conditions-and-diseases/dry-eye

https://www.health.harvard.edu/a_to_z/dry-eye-syndrome-a-to-z

Glaucoma

Overview

Open-angle glaucoma

WHAT YOU NEED TO KNOW

• Glaucoma is the leading cause of irreversible blindness.
• Three million people in the United States and 80 million people worldwide have glaucoma.
• Glaucoma is known as the “silent blinder” because there are no noticeable symptoms in the early stages.
• Early detection and treatment for glaucoma are the most important steps to prevent vision loss.
• Family history, especially a sibling relationship, is a risk factor for glaucoma.
• Eye pressure is the only known modifiable risk factor for glaucoma and is the target of current treatment regimens.

Glaucoma is a group of eye conditions that damage the optic nerve. The optic nerve sends visual information from your eye to your brain and is vital for good vision. Damage to the optic nerve is often related to high pressure in your eye. But glaucoma can happen even with normal eye pressure.

Glaucoma can occur at any age but is more common in older adults. It is one of the leading causes of blindness for people over the age of 60.

Many forms of glaucoma have no warning signs. The effect is so gradual that you may not notice a change in vision until the condition is in its later stages.

It's important to have regular eye exams that include measurements of your eye pressure. If glaucoma is recognized early, vision loss can be slowed or prevented. If you have glaucoma, you'll need treatment or monitoring for the rest of your life.

The symptoms of glaucoma depend on the type and stage of your condition.

Open-angle glaucoma

• No symptoms in early stages
• Gradually, patchy blind spots in your side vision. Side vision also is known as peripheral vision
• In later stages, difficulty seeing things in your central vision

Acute angle-closure glaucoma

• Severe headache; Severe eye pain; Nausea or vomiting; Blurred vision; Halos or colored rings around lights; Eye redness

Normal-tension glaucoma

• No symptoms in early stages
• Gradually, blurred vision
• In later stages, loss of side vision

Glaucoma in children

• A dull or cloudy eye (infants)
• Increased blinking (infants)
• Tears without crying (infants)
• Blurred vision
• Nearsightedness that gets worse
• Headache

Pigmentary glaucoma

• Halos around lights
• Blurred vision with exercise
• Gradual loss of side vision

When to see a doctor

If you experience symptoms that come on suddenly, you may have acute angle-closure glaucoma. Symptoms include severe headache and severe eye pain. You need treatment as soon as possible. Go to an emergency room or call an eye doctor's (ophthalmologist's) office immediately.

Glaucoma develops when the optic nerve becomes damaged. As this nerve gradually deteriorates, blind spots develop in your vision. This nerve damage is usually related to increased pressure in the eye.

Elevated eye pressure happens as the result of a buildup of fluid that flows throughout the inside of the eye. This fluid also is known as the aqueous humor. It usually drains through a tissue located at the angle where the iris and cornea meet. This tissue also is called the trabecular meshwork. The cornea is important to vision because it lets light into the eye. When the eye makes too much fluid or the drainage system doesn't work properly, eye pressure may increase.

Open-angle glaucoma

This is the most common form of glaucoma. The drainage angle formed by the iris and cornea remains open. But other parts of the drainage system don't drain properly. This may lead to a slow, gradual increase in eye pressure.

Angle-closure glaucoma

This form of glaucoma occurs when the iris bulges. The bulging iris partially or completely blocks the drainage angle. As a result, fluid can't circulate through the eye and pressure increases. Angle-closure glaucoma may occur suddenly or gradually.

Normal-tension glaucoma

No one knows the exact reason why the optic nerve becomes damaged when eye pressure is normal. The optic nerve may be sensitive or experience less blood flow. This limited blood flow may be caused by the buildup of fatty deposits in the arteries or other conditions that damage circulation. The buildup of fatty deposits in the arteries also is known as atherosclerosis.

Glaucoma in children

A child may be born with glaucoma or develop it in the first few years of life. Blocked drainage, injury or an underlying medical condition may cause optic nerve damage.

Pigmentary glaucoma

In pigmentary glaucoma, small pigment granules flake off from the iris and block or slow fluid drainage from the eye. Activities such as jogging sometimes stir up the pigment granules. That leads to a deposit of pigment granules on tissue located at the angle where the iris and cornea meet. The granule deposits cause an increase in pressure.

Glaucoma tends to run in families. In some people, scientists have identified genes related to high eye pressure and optic nerve damage.

Glaucoma can damage vision before you notice any symptoms. So be aware of these risk factors:

• High internal eye pressure, also known as intraocular pressure
• Age over 55
• Black, Asian or Hispanic heritage
• Family history of glaucoma
• Certain medical conditions, such as diabetes, migraines, high blood pressure and sickle cell anemia
• Corneas that are thin in the center
• Extreme nearsightedness or farsightedness
• Eye injury or certain types of eye surgery
• Taking corticosteroid medicines, especially eye drops, for a long time
• Take certain drugs for bladder control or seizures or some over-the-counter cold remedies

Some people have narrow drainage angles, putting them at increased risk of angle-closure glaucoma.

These steps may help detect and manage glaucoma in its early stages. That may help to prevent vision loss or slow its progress.

• Get regular eye examinations. Regular comprehensive eye exams can help detect glaucoma in its early stages, before significant damage occurs. As a general rule, the American Academy of Ophthalmology recommends a comprehensive eye exam every 5 to 10 years if you're under 40 years old; every 2 to 4 years if you're 40 to 54 years old; every 1 to 3 years if you're 55 to 64 years old; and every 1 to 2 years if you're older than 65.

If you're at risk of glaucoma, you'll need more frequent screening. Ask your health care provider to recommend the right screening schedule for you.

• Know your family's eye health history. Glaucoma tends to run in families. If you're at increased risk, you may need more frequent screening.
• Wear eye protection. Serious eye injuries can lead to glaucoma. Wear eye protection when using power tools or playing sports.
• Take prescribed eye drops regularly. Glaucoma eye drops can significantly reduce the risk that high eye pressure will progress to glaucoma. Use eye drops as prescribed by your health care provider even if you have no symptoms.
• Exercise. Do moderate activity such as walking or jogging at least three times a week.

Diagnosis

Your health care provider will review your medical history and conduct a comprehensive eye examination. Your provider may perform several tests, including:

• Measuring intraocular pressure, also called tonometry
• Testing for optic nerve damage with a dilated eye examination and imaging tests
• Checking for areas of vision loss, also known as a visual field test
• Measuring corneal thickness with an exam called pachymetry
• Inspecting the drainage angle, also known as gonioscopy

The damage caused by glaucoma can't be reversed. But treatment and regular checkups can help slow or prevent vision loss, especially if you catch the disease in its early stages.

Glaucoma is treated by lowering intraocular pressure. Treatment options include prescription eye drops, oral medicines, laser treatment, surgery or a combination of approaches.

Eyedrops

Glaucoma treatment often starts with prescription eye drops. Some may decrease eye pressure by improving how fluid drains from your eye. Others decrease the amount of fluid your eye makes. Depending on how low your eye pressure needs to be, you may be prescribed more than one eye drop.

Prescription eye drop medicines include:

• Prostaglandins. These increase the outflow of the fluid in your eye, helping to reduce eye pressure. Medicines in this category include latanoprost (Xalatan), travoprost (Travatan Z), tafluprost (Zioptan), bimatoprost (Lumigan) and latanoprostene bunod (Vyzulta).

Possible side effects include mild reddening and stinging of the eyes, darkening of the iris, darkening of the pigment of the eyelashes or eyelid skin, and blurred vision. This class of drug is prescribed for once-a-day use.

• Beta blockers. These reduce the production of fluid in your eye, helping to lower eye pressure. Examples include timolol (Betimol, Istalol, Timoptic) and betaxolol (Betoptic S).

Possible side effects include difficulty breathing, slowed heart rate, lower blood pressure, impotence and fatigue. This class of drug can be prescribed for once- or twice-daily use depending on your condition.

• Alpha-adrenergic agonists. These reduce the production of the fluid that flows throughout the inside of your eye. They also increase the outflow of fluid in your eye. Examples include apraclonidine (Iopidine) and brimonidine (Alphagan P, Qoliana).

Possible side effects include irregular heart rate, high blood pressure, fatigue, red, itchy or swollen eyes, and dry mouth. This class of drug is usually prescribed for twice-daily use but sometimes can be prescribed for use three times a day.

• Carbonic anhydrase inhibitors. These medicines reduce the production of fluid in your eye. Examples include dorzolamide and brinzolamide (Azopt). Possible side effects include a metallic taste, frequent urination, and tingling in the fingers and toes. This class of drug is usually prescribed for twice-daily use but sometimes can be prescribed for use three times a day.
• Rho kinase inhibitor. This medicine lowers eye pressure by suppressing the rho kinase enzymes responsible for fluid increase. It is available as netarsudil (Rhopressa) and is prescribed for once-a-day use. Possible side effects include eye redness and eye discomfort.
• Miotic or cholinergic agents. These increase the outflow of fluid from your eye. An example is pilocarpine (Isopto Carpine). Side effects include headache, eye ache, smaller pupils, possible blurred or dim vision, and nearsightedness. This class of medicine is usually prescribed to be used up to four times a day. Because of potential side effects and the need for frequent daily use, these medicines are not prescribed very often anymore.

Because some of the eye drop medicine is absorbed into your bloodstream, you may experience some side effects unrelated to your eyes. To minimize this absorption, close your eyes for 1 to 2 minutes after putting the drops in. You also may press lightly at the corner of your eyes near your nose to close the tear duct for 1 or 2 minutes. Wipe off any unused drops from your eyelid.

You may have been prescribed multiple eye drops or need to use artificial tears. Make sure you wait at least five minutes in between using different drops.

Oral medications

Eye drops alone may not bring your eye pressure down to the desired level. So your eye doctor may also prescribe oral medicine. This medicine is usually a carbonic anhydrase inhibitor. Possible side effects include frequent urination, tingling in the fingers and toes, depression, stomach upset, and kidney stones.

Surgery and other therapies

Other treatment options include laser therapy and surgery. The following techniques may help to drain fluid within the eye and lower eye pressure:

• Laser therapy. Laser trabeculoplasty (truh-BEK-u-low-plas-tee) is an option if you can't tolerate eye drops. It also may be used if medicine hasn't slowed the progression of your disease. Your eye doctor also may recommend laser surgery before using eye drops.
• Filtering surgery. This is a surgical procedure called a trabeculectomy (truh-bek-u-LEK-tuh-me). The eye surgeon creates an opening in the white of the eye, which also is known as the sclera. The surgery creates another space for fluid to leave the eye.
• Drainage tubes. In this procedure, the eye surgeon inserts a small tube in your eye to drain excess fluid to lower eye pressure.
• Minimally invasive glaucoma surgery (MIGS). Your eye doctor may suggest a MIGS procedure to lower your eye pressure. These procedures generally require less immediate postoperative care and have less risk than trabeculectomy or using a drainage device. They are often combined with cataract surgery. After your procedure, you'll need to see your eye doctor for follow-up exams. And you may eventually need to undergo additional procedures if your eye pressure begins to rise or other changes occur in your eye.

Treating acute angle-closure glaucoma

Acute angle-closure glaucoma is a medical emergency. If you're diagnosed with this condition, you'll need urgent treatment to reduce the pressure in your eye. This generally will require treatment with medicine and laser or surgical procedures.

You may have a procedure called a laser peripheral iridotomy. The doctor creates a small hole in your iris using a laser. This allows fluid to flow through the iris. This helps to open the drainage angle of the eye and relieves eye pressure.

These tips may help you control high eye pressure or promote eye health.

• Eat a healthy diet. Eating a healthy diet can help you maintain your health, but it won't prevent glaucoma from worsening. Several vitamins and nutrients are important to eye health, including zinc, copper, selenium and antioxidant vitamins C, E and A.
• Exercise safely. Regular exercise may reduce eye pressure. Talk to your health care provider about an appropriate exercise program.
• Limit your caffeine. Drinking beverages with large amounts of caffeine may increase your eye pressure.
• Don't smoke. It's important to keep your body healthy, and nicotine takes a toll. Smoking also increases blood pressure and eye inflammation that can increase your risk for diabetes and cataracts. Both are risk factors for glaucoma. If you smoke, ask your doctor for advice on how to quit.
• Elevate your head. Use a wedge pillow when you sleep. It'll keep your head raised just a little. That should help lower your eye pressure.
• Sip fluids carefully. Drink moderate amounts of fluids. Drinking a quart or more of any liquid within a short time may temporarily increase eye pressure.
• Protect your eyes. Put on protective glasses when you work in the yard or play contact sports. Wear goggles when you swim. When choosing makeup, use non-allergenic brands and replace items often. Be sure to wear sunglasses outside, especially in summer or around high-glare surfaces such as sand, snow, and water. When you have glaucoma, your eyes can be very sensitive to glare.
• Be careful with yoga. You may need to reconsider some yoga positions. Some head-down moves that put your heart above your eye can increase your eye pressure. Research hasn’t shown that it makes glaucoma worse, but it’s not a good idea to do yoga positions that increase eye pressure. 
• Take prescribed medicine. Using your eye drops or other medicines as prescribed can help you get the best possible result from your treatment. Be sure to use the drops exactly as prescribed. Otherwise, your optic nerve damage could get worse.

Some alternative medicine approaches may help your overall health, but none is an effective glaucoma remedy. Talk with your doctor about their possible benefits and risks.

• Herbal remedies. Some herbal supplements, such as bilberry extract, have been advertised as glaucoma remedies. But further study is needed to prove their effectiveness. Don't use herbal supplements in place of proven therapies.
• Relaxation techniques. Stress may trigger an attack of acute angle-closure glaucoma. Try to find healthy ways to cope with stress. Meditation and other techniques may help.

Source:

https://www.mayoclinic.org/diseases-conditions/glaucoma/diagnosis-treatment/drc-20372846

https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/glaucoma

https://glaucoma.org/

https://www.webmd.com/eye-health/glaucoma-eyes

https://www.hopkinsmedicine.org/health/conditions-and-diseases/glaucoma

https://my.clevelandclinic.org/health/diseases/4212-glaucoma

https://www.aao.org/eye-health/diseases/what-is-glaucoma