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Author: innexus

Myths and Facts: Contact Lenses

Are you a contact lens wearer? If so, you’ve probably heard some myths about wearing contact lenses. Typically, these contact lens myths grow from an unusual experience or misunderstanding information. Many contact lens myths are based on the way contact lenses used to be, instead of the current design and technology of contact lenses. We wanted to debunk some of the contact lens myths and give you the facts instead!

1.I’m too old to wear contact lenses

Fact: Anyone, at any age can wear contact lenses. Many older adults choose to wear contact lenses instead of reading glasses.

2. Contact lenses will get lost behind my eye

Fact: It is physically impossible for a contact lens to get lost behind your eye. A membrane covers your eye which connects inside your eyelids to prevent anything from getting behind your eye.

3. Contact lenses are uncomfortable

Fact: Modern contact lenses are thin and soft, making them very comfortable and often unnoticeable to wear. Some of the early contact lenses made 40-50 years ago were uncomfortable. However, we recommend you try modern contact lenses before sticking with this assumption.

4. Contact lenses can get stuck on my eye

Fact: If you follow proper wear, care, and removal advice from your eye doctor your contact lens cannot get stuck to your eye. Should your lens feel dry, apply some rewetting drops, and they should loosen right up.

5. Contact lenses are too much trouble to take care of

Fact: Daily disposable contact lenses make lens care irrelevant. You wear them one day and throw them out when you are done. However, reusable contact lens care is relatively simple with modern solutions. Most contact lenses can be cleaned and stored using one multi-use contact lens solution.

6. I’ll never be able to put in contact lenses

Fact: Our staff will show and teach you how to put in contact lenses. We ensure that you are confident in your abilities to put in and take out your contacts before you leave our office. Most people can figure it out after a handful of tries!

7. Contacts can pop out of my eye

Fact: Properly fitted contact lenses should never pop out of your eye. Typically, the only way a contact lens will move is shifting around your eye. Therefore blinking a few times or closing your eyelid and gently pressing on it should move the lens right back into place.

8. Contact lenses are too expensive

Fact: The cost of contact lenses varies depending on brand, replacement schedule, and how often you wear them. Typically, the price is comparable to a new pair of glasses. Above all our team will help you select contact lenses that work best for your lifestyle and your budget.

9. Children and teenagers cannot wear contacts

Fact: There is no age restriction on wearing contacts. Anyone can wear contact lenses; ultimately it depends on enthusiasm, responsibility, and maturity. Our staff can advise whether contact lenses are a suitable option for your child.

If you have more questions about contact lenses, give our office a call! We want to help you feel confident in your knowledge of contact lenses.

Nutrition and Your Eyes

The foods you eat and the dietary supplements you take affect your overall health and the health of your eyes. Nutrition and your eyes are linked together and can help prevent certain eye diseases along with other health problems.

Healthy Foods

Choosing healthy foods improves your overall health as well as your eye health. Dark green or brightly colored fruits and vegetables are essential parts of a healthy diet. These fruits and vegetables may also help to reduce the risks of developing eye diseases. Sugars and white flours may increase your risk of age-related eye disease, instead, opt for whole grains which do not have the same risks. Healthy fats containing omega-3 essential fatty acids are critical to your diet. These healthy fats can help prevent dry eyes and cataracts.

Hydration

Staying hydrated is essential to the health of your eyes. Drink plenty of water every day! We also recommend choosing healthy beverages and avoiding high sugar beverages. Proper hydration is linked to the reduction of dry eye symptoms.

Nutrients

Nutrients are an essential part of a healthy diet. These nutrients can be found in foods but can also be taken in supplements to ensure you are receiving the proper amount in your diet. Consult with your primary care provider before taking any dietary supplements. Here are a few nutrients that may have a link to eye health:

  • Vitamin A: may protect against night blindness and dry eyes
  • Omega 3 fatty acids: may prevent macular degeneration and dry eyes
  • Vitamin C: may reduce risks of cataracts and macular degeneration
  • Vitamin D: may reduce risks of macular degeneration
  • Zinc: may reduce risks of night blindness
  • Vitamin E: may reduce the risk of advanced macular degeneration

Aging Eyes

As you age, it is essential to consider all factors that could affect the overall health of your eyes. Not only should you adopt a healthy diet, but you can also do several other things to protect your eyes. One way to protect your eyes is to avoid overexposure to ultraviolet rays, which includes wearing sunglasses outdoors and staying away from tanning beds. Now is the time to quit smoking, not only is smoking harmful to your overall health it also increased your risks for many eye diseases. Finally, ensure that you are getting annual eye exams to detect any eye diseases before they cause permanent vision loss.

Nutrition and your eyes are highly connected, continue to find ways to feed your body the food and nutrients it needs to live a healthy life with healthy eyes.

What Is Dry Eye?

Dry eye syndrome is caused by a chronic lack of moisture and lubrication of the eyes. Your eye’s tears keep the surface of the eye moist and lubricated, as well as washing away dust, debris, and other microorganisms.

What causes dry eye?

Typically dry eye occurs when there is a problem with your tears. Tears are made up of an oily, watery, and mucin component. Any issue with those components could cause dry eye. It could be tear instability, tear film evaporation, or insufficient tear production. The only way to detect the cause of your dry eye is an eye exam.

Symptoms

  • Burning sensation
  • Itchy eyes
  • Aching sensations
  • Heavy eyes
  • Fatigued eyes
  • Sore eyes
  • Dryness sensation
  • Red eyes
  • Photophobia (light sensitivity)
  • Blurred vision

Who gets dry eye?

Dry eye can happen to anyone at any age. Each case of dry eye varies in severity and individual tolerance. However, there are certain factors which can increase your risk for dry eyes. These factors include:

  • Computer use: Humans blink less frequently when working at computers, allowing for increased tear evaporation.
  • Smoking: Causes eyes to dry over time and is the root of various other eye problems.
  • Aging: Dry eye syndrome is more common after the age of 50.
  • Menopause: Women who have completed menopause are at a higher risk for dry eye than men of the same age.
  • Health conditions: Certain diseases have a higher risk of contributing to dry eyes- such as diabetes or thyroid diseases.
  • Medications: Prescription and nonprescription medicines can have dry eye as a side effect.

Visiting The Doctor

Getting an eye exam by an eye doctor is the only way to know for sure you have chronic dry eye syndrome. Symptoms of dry eye can vary significantly from person to person and may even be symptoms of other eye problems. Personal perception of dry eye severity does not indicate whether or not an individual has chronic dry eye syndrome. Some individuals with mild dry eye may feel their eyes are very bothersome, while some individuals with severe dry eye may not consider their symptoms significant.

If you are showing symptoms of dry eye, schedule an appointment with our office as soon as possible. The only way to know the medical severity of your dry eye is through an eye exam.

 

Vision Development and Children

Childhood is a critical time for vision development. Nearly 80% of what a child learns in school is presented visually. Arguably making vision the most important of the five senses. Visual skills start developing during pregnancy and continue to evolve and develop as a child grows. Undetected vision problems can cause developmental and educational delays in children.

Infant Vision Development

Your infant’s vision starts developing during pregnancy. It is crucial that toxins are not consumed during pregnancy as they can cause serious vision problems. At birth, babies only see black, white, and shades of gray. Infants are unable to focus on objects for several months and can only see the outline of objects.

As infants grow, they can distinguish between high contrast colors. By six months your child can see color, has sharper vision, and has begun developing hand-eye coordination skills. Schedule your child’s first eye exam at six months to make sure their eyes are healthy and on the right developmental track. Detection of eye health issues and vision problems at this stage in development can help to ensure your child does not experience setbacks in learning and growth.

When your infant begins to crawl and potentially walk they are learning to coordinate their body movements and their vision. Over time, your child will become better at judging distances. However, this is also a time when your child may grow more injury prone because they are exploring their environment. Bumps, bruises, eye injuries, and other injuries can occur which is why it is so vital to ensure that your infant’s vision is on track to prevent these injuries as much as possible.

Early Childhood Vision Development

During these years your child will be growing, developing, and improving their visual skills. It is recommended to schedule your child eye exam at three years old. Even if you don’t think your child has vision problems, your child is growing and changing. A comprehensive eye exam before your child enters school provides enough time to catch and correct any vision problems.

They are discovering how to integrate their vision and body position to complete new tasks. They learn this through playing games, throwing a ball, and riding a bike. Children are also working on developing their fine motor skills. The primary way preschool age children are learning this is through writing their name and the alphabet.

Between the ages of 3 to 6 is when you, as a parent, may begin to notice signs of a vision problem. If your child complains about headaches or tired eyes, this could potentially be due to a vision problem. Signs of vision problems include squinting, tilting the head, frequently rubbing eyes, and closing one eye to see. Additionally, look for sitting too close to a tv, holding a book too close, or avoiding activities that require near or distance vision. Some of these activities include coloring, reading, playing ball, or tag if you notice these signs in your child schedule an eye exam as soon as possible. Correct their vision before any learning is delayed!

Why Your Children Should be Wearing Sunglasses

As you may know, the sun’s harmful ultraviolet (UV) rays can cause damage to your skin, but how often do you think about the damage these rays can cause to your eyes? What about your child’s eyes? At a young age, children’s eyes are still developing, and with the substantial time they spend outdoors, it is important to purchase sunglasses to protect their eyes from harmful UV rays.

What Are UV Rays?

UV rays or ultraviolet radiation is a form of electromagnetic radiation or energy. These rays are emitted from the sun as well as a few man-made sources, like tanning beds. A key factor in what makes ultraviolet rays so dangerous is our inability to see them. Ultraviolet rays fall outside the range of visible light for the human eye. To read more about UV rays, click here.

Your Exposure to UV Rays

Eye Development

The lens inside a child’s eye is still developing and is not as capable of filtering high energy rays similar to eye lenses in adults. This inability to filter and fully protect their eyes causes children to have a higher risk of damage from UV rays. Shielding your infant’s or child’s eyes from UV rays as early as possible will help prevent overexposure to UV radiation throughout their lifetime. For younger children and infants, a sun hat provides additional protection to their skin and eyes throughout the day as the sun shifts and in case they remove their sunglasses.

Environment

Exposure to UV radiation increases at high altitudes, tropical locations, and in reflective environments. Consider the level of risk in your environment and if protective eyewear should be worn. Here are a few environment aspects and how they could affect your exposure to harmful UV rays.

  • Altitude: At higher altitudes, the earth’s atmosphere is thinner and unable to provide the same protection from UV rays.
  • Location: As you move closer to the earth’s equator, the level of UV rays increase. If you and your family are visiting a tropical location near the earth’s equator, always wear 100% UV blocking eyewear when outdoors.
  • Highly reflective services: Areas with highly reflective services like pools, lakes, oceans, and snow reflect UV rays. Snow can reflect up to 80% of UV rays creating a higher risk of UV damage to your eyes.
  • Clouds: Keep in mind clouds do not block UV radiation. UV exposure can be high on cloudy days.

Time of Day

  • Time of day: UV levels are higher between 10 am to 2 pm when the sun is at its peak.
  • Setting: Highly reflective surfaces like sand, water, and snow provide a much higher risk of eye damage due to UV radiation.

Children’s Eyewear

We understand convincing your child to wear sunglasses can be a challenge. Use these pointers when talking with your kids about sunglasses! Don’t forget, you know your children better than anyone else, so some of these tips may not work for them.

  • Match the current trends. If your child loves a certain color, pattern, or shape, purchase sunglasses to match their unique style.
  • TV shows, young celebrities, and brands like Disney create sunglass lines to appeal specifically to children. That’s right, children notice and prefer brand named items just like teens and adults.
  • Keep frame in the family. If the child has an adult or sibling they look up to and admire, purchase your child similar sunglasses to what the adult or sibling owns. This will appeal to the child’s desire to look more like their older sibling or parent!
  • Let them do the shopping. Take children shopping specifically to pick out their very own special pair of sunglasses. The more they like their sunglasses, the more likely they are to wear them, and the better protected their eyes will be from harmful UV radiation from the sun.

Tips for Choosing Your Perfect Eyewear

Have you ever gone to pick out new eyeglasses, but been overwhelmed by all your options? Do you ever struggle to know what eyewear shape looks best on you? We’ve compiled our best tips for picking the perfect pair of eyewear to help make your decisions easier.

  1. Contrast your face shape

    • There are seven basic face shapes to review including oval, base-up or base-down triangle, oblong, square, diamond, and round. Eyewear should contrast your face shape but be in scale with your face size. Find your face shape below and try out our recommended shape frames

      1. Oval: wide or walnut-shaped frames
      2. Base-up triangle: frames with a wider bottom, light color or lightweight
      3. Oblong: frames with more depth than width
      4. Square: narrow frames and with more width than depth
      5. Diamond: cat-eye shaped frames or other detailing on the brow line
      6. Round: narrow frames which are wider and have a clear bridge
      7. Base-down triangle: frames with color or detailing on the top half

  2. Highlight your features

    • Pick your best or favorite feature and pick a frame to highlight it.
    • Some features to consider highlighting would be your eyes, hair, skin color, and face shape. For example, if you have blue eyes, try a blue frame to match and highlight your eye color.

  3. Match or complement colors

    • Your skin, eyes, and hair work together to create your overall coloring. Everyone has either a cool (blue or pink undertones) or a warm (yellow or orange undertones) overall color. Try a frame from our color list below to complement your coloring.
    • Warm coloring: camel, khaki, gold, copper, peach, orange, coral, red, or warm blue
    • Cool coloring: black, silver, rose-brown, blue-gray, plum, magenta, pink, blue, or tortoise

  4. Find the perfect size

    • Try on multiple pairs to see what size fits your face shape best.
    • If the frames are too small your peripheral vision will be limited and could potentially feel tight on the head. The frames should not pinch your nose, leave red marks, slide down your nose, or easily slip off your head. The tightness around your ears can be adjusted to get the perfect fit.  

  5. Match your frames to your lifestyle

    • Make sure your frames will work for every part of your life and will be a representation of you and your personality.
    • Pick frames to match your unique lifestyle and hobbies. Consider your common activities when choosing frames. For example, if you are more active you may want a pair of sports eyewear or a wraparound band. If you spend a lot of time on the computer, you may want eyeglasses with a tinted lens.

  6. Anti-reflective coating

    • An anti-reflective coating helps eliminate reflections on both sides of your lenses to cut down annoying glare and improve night vision.
    • Anti-reflective coatings allow for sharper, clearer vision with less glare. The lenses appear to be nearly invisible, giving the eyeglasses a more attractive appearance and allowing for better eye contact.

  7. Are weight and material important to you?

    • Frames are most commonly made of plastic, metal, or a combination of materials. This combination determines the longevity, weight, and average cost of a frame.
    • Key Features:
          • Stainless steel and titanium are long lasting
          • Metal frames often have adjustable nose pads
          • Metal frames can come in hypoallergenic materials
          • Plastic frames tend to be less expensive
          • Plastic frames are lighter
          • Plastic frames typically need less maintenance than metal frames
          • Flexible hinges allow the “arms” to bend more than regular hinges

The Importance of Sports Eyewear

Whether you’re playing or watching the game, one incident everyone dreads is an injury. Injuries can prevent players from finishing the game, or worse, end an athletic career. Protective sports eyewear helps to prevent injuries and allows players to continue to play their sport. In today’s world, many sports facilities and fitness clubs require athletes to wear proper eye gear in order to minimize injury.

Why is it important to wear protective eyewear?

Emergency rooms treat more than 40,000 sports-related eye injuries every year, and up to 90 percent of those injuries could have been prevented by using protective eyewear. Any sport in which a ball, racquet, or other flying object is present poses a risk for injury. However, injuries can also result from close contact with others in the way of pokes or jabs with fingers and elbows. Protective eyewear is important because it keeps your eyes safe from a variety of injuries. As an additional bonus, the sharper your vision, the better you will perform in your sport of choice.

Features to look for:

  • Various sizes and shapes designed to fit the user.
  • Customized to best suit the sport including reflective lenses, space for headgear, and wrap around bands.
  • User’s prescription can be added to the lenses, which allows for better clarity during the game and increased overall performance.
  • Lenses are often made of polycarbonate, an impact-resistant material, to protect eyes from high speed and high impact objects.
  • Sports frames are also made of impact resistant material and often come with rubber padding where the frame comes in contact with the head or nose.
  • Wraparound sports glasses help to ensure the eyewear remains in place for the duration of a sporting event and prevents dust or debris from entering through the sides of the glasses.

Get the Facts

Experts agree sports-related eye injuries can be prevented by wearing protective eyewear. Parents and coaches should ensure athletes are wearing safety glasses during sporting events, especially considering 43 percent of all sports-related eye injuries occur in children younger than age 15. Regular eyeglasses are not safe to use as protective sports eyewear because they do not have impact resistance and could shatter or break upon impact.  

It is imperative that protective eyewear properly fits the user. Resist the urge to buy children’s eyewear with “room to grow.” Purchasing protective eyewear too large for the user could cause eyewear to be less effective and increase the risk of injury. Additionally, be sure the user has not outgrown protective goggles as this increases the risk of injury as well.  

Sports using Protective Eyewear

  • Badminton: sports goggles with polycarbonate lenses
  • Baseball/softball: batting and baserunning- helmet with polycarbonate face shield. Fielding- sports goggles or sports sunglasses with shatterproof lenses and head strap
  • Basketball: wraparound sports goggles
  • Bicycling: performance sunglasses with anti-fog and anti-scratch lenses
  • Fencing: full face mask made of rigid metal
  • Field hockey: all players- sports goggles with a head strap. Goalies- full helmets and face masks
  • Fishing: polarized sunglasses
  • Football: polycarbonate shield attached to a helmet
  • Hunting and shooting: polarized shatter resistant shooting glasses
  • Ice hockey: full face helmet
  • Lacrosse: form fitting and padded face mask
  • Paintball: full face helmet
  • Racquetball: sports goggles with polycarbonate lenses
  • Skiing and snowboarding: ski goggles or wraparound polarized sunglasses with mirror coated lenses
  • Soccer: sports goggles
  • Squash/Tennis: sports goggles with wraparound frame
  • Swimming and diving: swim goggles and diving masks
  • Volleyball: sports goggles or sunglasses
  • Water Polo: swim goggles with polycarbonate lenses

Reasons Not to Compromise on Price

Have you ever been tempted to buy cheap glasses you see online or the reading glasses you found at a discount store? They look just as good as the prescription eyeglasses you paid full price for, right?

The hard truth is they are not the same as the high-quality prescription eyewear provided by our office. Unreliable eyeglasses are more likely to break, scratch, and discolor over time. Your goal should be to buy glasses that will last and will not need frequent replacement. The cost of replacing cheap glasses can add up to the same cost as purchasing a more expensive, quality pair, originally.

Know what you lose

When comparing costs, there is always a compromise to be made. One of the biggest elements lost when buying cheap eyeglasses is individual care. Opticians recommend eyewear based on your daily routine, provide professional fittings, and ensure the quality of your eyewear is examined.

Same top quality?

Online glasses retailers often state that they offer the “same top quality” as eyecare practices. How do you know what their definition or range of top quality is? Cheap price often means cheaper materials.

Try before you buy

Usually, when buying glasses from an online retailer, you sacrifice the opportunity to try the glasses on and see how they fit your face. A virtual try-on does not allow for an accurate representation of how glasses look and fit on your face.

You cannot receive a proper fitting

If you choose to purchase eyeglasses from an online supplier, you forfeit a proper fitting. As a result, you may purchase a pair of glasses that are too tight or loose for your face.

Cheap frames

A downside to cheaper frames is they are more likely to cause skin irritation. Cheaper metal frames can discolor your skin or even cause a skin rash due to allergy. With prolonged wear, cheap plastic frames will discolor in sunlight and the smooth finish will diminish.

Durability

Another inevitable loss with cheaper eyeglasses is durability. Frames made with inexpensive materials are not designed to withstand extended use as well as eyeglasses sold by eye practitioners are able to.

Reading glasses

A wide-spread myth: all reading glasses are the same whether you purchase them at a discount store or at an eye practitioner. The truth is, your eye practitioner is able to customize the lenses to fit your exact eye and lifestyle needs. Read more about progressive lenses available at our office here.

Sunglasses lose UV protection

It’s tempting to buy cheap sunglasses because you are worried you might misplace or scratch them. However, it is crucial to protect your eyes from UV radiation damage. Don’t give up 100% UV protection for a cheap sticker price.

Protecting Your Eyes with Safety Eyewear

Each year, more than 700,000 Americans injure their eyes at work and 125,000 Americans injure their eyes at home. However, almost 90% of these eye injuries could have been prevented with the use of safety eyewear.*

Safety Glasses Vs Regular Glasses

In comparison to regular glasses, safety glasses are designed and tested to meet safety regulations for enhanced protection. Safety glasses must have higher durability, the lenses and frames must be impact resistant, and they must pass a series of tests. Regular glasses to do not have these standards.

Lens Materials

The lens materials used in safety eyewear undergo numerous tests to determine safety classification and impact resistance. Safety eyewear commonly uses polycarbonate material for impact-resistant lenses. This material is half the weight of glass and makes for lighter and more comfortable wear.

Prescription Safety Eyewear

In most cases, safety goggles do not have prescription lenses and are used primarily for eye protection. However, goggles can be made with prescription lenses to accommodate those who need corrective eyewear.

Standards for Safety Eyewear

In the United States, the American National Standards Institute is the non-profit organization that sets the quality and safety standards for eye safety devices including eyeglasses, goggles, face shields, welding helmets, and full face respirators. The Occupational Safety and Health Administration (OSHA) is the department of US Department of Labor that oversees workplace safety. Your employer should inform you what type of safety eyewear you need for the job.

Symbols to Look For

  • Having a plus mark (+) on eyewear means the lenses passed the high-velocity test. Without a plus mark, they pass the basic impact test.
  • (V) means they are photochromic and (S) means the lens has a special tint. The glasses marked with (V) and (S) protect your eyes from light damage when soldering, brazing, cutting, and welding.
  • Z87 the frames pass basic impact.
  • Z87+ the frames pass high impact.
  • Z87-2 the frames pass basic impact and have prescription lenses.

When do I need to wear protective eyewear?

Occupational Hazards

Some jobs require protective eyewear. A good rule of thumb is if you work in an area with loose particles, flying objects, chemicals, or dust, you should wear safety glasses. Some occupations have a higher risk of eye injury including construction, manufacturing, auto repair, electrical work, welding, mining, carpentry, plumbing, and maintenance.

Home Risks

If you are working on repairs, renovations, painting, or yard work at your home you should wear protective eyeglasses. For home tasks such as mowing the lawn, trimming, and other power tool activities it is recommended to use frames with side shields to protect from flying particles and objects.

Sports Safety

Protective eyewear should be worn in a variety of sports. For active sports, elastic bands can help to secure the glasses on players’ heads. Athletes that participate in hunting or shooting sports should wear high impact frames and lenses, which protects their eyes from possible ricochet. Fish hooks can cause serious eye injuries; the best choice is a wrap-style frame with safety lenses. Protective eyewear can help to prevent eye injuries.

* All About Vision

 

Glaucoma: The Silent Thief of Sight

Did you know, nearly 2.2 million people in the United States are affected by glaucoma?* Due to the lack of symptoms in the early stages of glaucoma, almost half of Americans with glaucoma do not know they have it; causing glaucoma to be the second leading cause of blindness in the United States and worldwide.

What is glaucoma?

Glaucoma is an eye condition that damages the optic nerve in the eye and, if left untreated, can result in blindness. High pressure within the eye causes damage to the optic nerve and prevents the nerve from sending messages from the eye to the brain.

Typically, there are no symptoms or pain associated with glaucoma until severe vision loss has occurred; at which point vision loss is permanent and cannot be reversed. The degree of vision loss differs from each individual.

Symptoms

  • Most often has no symptoms
  • Damage starts in peripheral vision
  • Blurred vision
  • Distorted vision
  • Vision loss

Who is at risk?

According to the Glaucoma Research Foundation, African Americans are three times more likely to be affected by glaucoma, and six times more likely to suffer from blindness as a result of glaucoma. Hispanics and Latinos have the second highest risk for glaucoma. Those with a family history of glaucoma and diabetes are also at a higher risk. In order to help with early detection and to prevent irreversible vision loss, be sure to notify your eye doctor if glaucoma runs in your family or if you have diabetes.

Primary Types of Glaucoma

  • Primary open-angle glaucoma: Primary open-angle glaucoma causes peripheral vision to gradually reduce without any other symptoms. If not controlled or discovered, it can progress to tunnel vision and ultimately lead to blindness.
  • Acute angle-closure glaucoma: Acute angle-closure glaucoma, also called narrow-angle glaucoma, produces a variety of sudden symptoms such as eye pain, headache, halos, dilated pupils, vision loss, nausea, and vomiting. Each onset of new symptoms causes additional vision loss.
  • Normal tension glaucoma: Normal tension glaucoma occurs in patients with a normal pressure within their eye and typically has no symptoms associated until tunnel vision occurs.

 

*Glaucoma Research Foundation