Why the Optic Nerve Is Essential for Your Vision

Functions, Diseases and Importance of the Optic Nerve

The optic nerve consists of more than 1 million bundled nerve fibers. Each of your eyes has its own optic nerve. The nerve connects the eye to the brain. Many health problems can lead to optic nerve damage. It is important to recognize vision changes and symptoms so that you can get a prompt eye exam at a Las Vegas family eye carecenter.

Functions of the Optic Nerve

The optic nerve receives impulses from the rods and cones in your retina. The cones perceive color and relay that information as a specific type of electrical pulse. The rods detect light, and they send a different type of electrical pulse. Those pulses are sent to the cortex of your brain that is responsible for interpreting visual information.

Anatomy of the Optic Nerve

The optic nerve is part of your central nervous system. It is technically an extension of the brain, and it is classified as cranial nerve II. The nerve is covered with myelin and sheathed in meninges, which protects it from conditions such as Guillain–Barré syndrome, which damages peripheral nerves. The cells in the optic nerve cannot regenerate. If they are damaged or destroyed, they cannot be repaired or replaced. This means that any damage to your optic nerve is permanent. The vision loss caused by the damage is also permanent.

Diseases of the Optic Nerve

Damage to the optic nerve can result from other health conditions. If you have untreated diabetes or glaucoma, your optic nerve may be damaged enough to cause you to lose vision or become blind. Other diseases affecting the optic nerve include optic neuritis, which is an inflammation of the nerve and optic nerve atrophy, which is wasting away of the nerve. The atrophy may result from exposure to toxins, acute injuries or poor blood flow. Rarely, brain tumors affect the optic nerve.

What the Eye’s Macula Is Responsible for and Why It Is Important

Understanding What the Macula of Your Eye Does

The macula of your eye is a small and central part of the retina. It is located at the back of the eye, so you cannot see it if you look at yourself in the mirror. Regular eye exams with an experienced eye doctor in Las Vegas help with the identification of macular disorders that could cause you to lose some or even all of your vision.

Features of the Macula

The high concentration of photoreceptor cells is what sets the macula apart from other parts of the eye. Those cells are responsible for accepting light and converting the light into electrical impulses that are sent to the brain through your optic nerve. The macula is a small area that measures about 5 millimeters in diameter. It is situated just above the optic nerve at the back center of your eye.

Functions of the Macula

The macula is responsible for all of your central vision, meaning what you see directly in front of you. It is also responsible for most of your ability to detect color. The macula also gives you the ability to see the fine details in objects. For example, when you look at a leaf and see the veins in it, the macula is what allows you to see those tiny indentations and patterns on the leaf.

Diseases of the Macula

People of any age can experience disease of the macula. Several known juvenile disorders cause dystrophy of the macula. Most of these disorders have a hereditary component. There are also age-related disorders of the macula. When the macula is diseased or damaged, you lose some of your ability to see what is in front of you. Your peripheral vision remains consistent. Over time, you could lose all of your central vision and ability to see a full spectrum.

How to Avoid Getting Makeup on Your Contact Lenses or in Your Eye

Tips for Using Eye Makeup When Wearing Contact Lenses

Many people apply eye makeup as a way to highlight their best features or enhance their appearance. If you wear contact lenses in Las Vegas, it is important to choose your eye makeup wisely and apply it carefully. Some makeup may not be compatible with contact lenses or may damage the lenses if they come into contact with each other. It is also important to use precautions when removing eye makeup and wearing contact lenses.

Wash Your Hands

Before inserting your contacts, wash your hands. This removes oils, dirt and bacteria from your skin. Put the contact lenses into your eyes before applying any eye makeup. Not only will you see better while applying the makeup, but you will have a lower chance of contaminating the lens with makeup.

Choose Oil-free Eye Makeup

The oils in some types of cream-based eye products could migrate into your contact lenses. Oil and water do not mix, and the oil could be absorbed by the lens. The oil creates clouding of the lens, which could damage it. A cloudy contact lens is also difficult to see through. Stick with water-soluble cosmetics for use around your eyes. This includes foundation, eye liner, eye shadow and mascara. Avoid using eye liner at the edge of your eyelids. It could get into the lenses or cause a stye.

Safe Removal of Eye Makeup

Consider using daily contact lenses. If any makeup did contaminate them, you would start the next day with a fresh pair. When daily lenses are not an option, consider the use of lid wipes. These wipes are made by contact lens companies as a way to keep your eyelids and eyelashes clean. They remove makeup residue and dandruff. They also lower the risk of eye infections.

Tips for Selecting a Glasses Frame Color That Suits Your Skin Tone

How to Choose a Color for Your Prescription Glasses Frame

Choosing a new pair of glasses in Las Vegas gives you the chance to change the way that you look. If you have typically selected frames without rims in the past, you could choose frames with rims this time. Another important part of the choice is the color of the frame. Use these tips to make a choice that you will be happy with for the next year or two.

Consider Your Skin Tone

Skin tones are usually warm or cool. If your skin tone is warm, it has a yellow undertone. If it is cool, it has a blue undertone. If you are not sure, hold a piece of white paper next to your inner arm. Determine if your inner arm looks like it has a blue tint or a yellow tint. You could also ask a friend or a color stylist at the salon.

Frame Colors for Warm Tones

When you have warm skin tones, you look best in warm colors. This is also true for your eyeglasses frames. Shades of brown, gold, yellow, orange and red are great options for your frame colors. Both plastic and metal frames are available in these shades. You could also consider tortoiseshell for your frames.

Cool Skin Tones

If you have a cool skin tone, you look your best in similarly cool colors. The cool colors on the spectrum include green, blue and purple. Silver and black are good neutral colors for cool skin tones. If your skin is light, choose a lighter cool color such as lilac or mint green. For medium complexions, a saturated color such as royal blue or violet will look good. For a deep cool skin tone, try a bright or dark shade such as navy blue.

The Best Prescription Eyeglasses for Your Sports, Leisure and Hobbies

How to Choose Eyeglasses for Your Leisure Activities and Hobbies

When you need both reading glasses and glasses to correct nearsightedness, finding the right prescription glasses in Las Vegas could be a challenge. If you enjoy spending most of your time engaging in certain leisure activities, you might consider basing your choice of glasses on how you spend the majority of your time. These tips will help you make an eyeglasses selection.

Glasses for Close-up Hobbies and Reading

Close-up hobbies such as knitting, crocheting, needlepoint, embroidery and quilting require good nearsightedness correction. If you do these activities while following a pattern, bifocals may be the best option for you. Wearing bifocals for these activities means that you will not have to switch between pairs of corrective lenses between reading the pattern or chart and looking at your work.

Occupational Lenses

If you need trifocal correction, consider having the optometrist make you a pair of trifocal lenses. These place the reading section higher up on the lens. They can correct your vision to different levels for each eye, and they also correct astigmatism. A pair of occupational lenses may be a good choice for you if you spend your leisure time on activities such as knitting complex lace patterns from a chart that uses dozens of different symbols.

Separate Readers and Prescription Lenses

If your hobbies include sports, walking in nature or activities that do not require switching back and forth between a pattern or instructions and your work, consider getting separate corrective lenses for your nearsightedness and readers for when you need to see words in front of you. If your eyes need different levels of correction for the reading glasses, the optometrist can prescribe a customized pair that accounts for the differences in each eye. Your prescription glasses for nearsightedness will be what you wear for most of the day.

Why You Have Eye Gunk and What It Says About the Eye Health and Vision

When Eye Discharge Is Normal and When It Is Not

Waking up with a little bit of eye discharge in the corner of your eye is normal. This gunk is a mixture of oil, old skin cells and particles flushed out of your eyes by your tears. If the discharge increases, becomes thick or changes in color, it is important for you to make an appointment with an optometrist in Las Vegas to have your eyes checked for an infection.

Normal Eye Discharge

Normal eye discharge is light yellow or cream in color. It is present in a small quantity, such as a little speck. Discharge is most often found in the corner of your eye that is closest to your nose. You will usually find it when waking up after sleeping for several hours. The discharge may be a little sticky, or it might be dried.

Abnormal Eye Discharge

Abnormal eye discharge is often related to an eye injury or infection. It can also signal a problem with a tear duct or oil gland. If you wake up after sleeping for several hours, and your eyes are fully encased in gunk, this suggests a problem. If the gunk becomes thick or sticky, visit an optometrist for an evaluation. The discharge might change in color, from cream to green or greenish yellow. All of these symptoms are consistent with an infection or injury to the eye or eyelids.

Causes of Abnormal Eye Discharge

One of the most common causes of an increase in eye discharge is conjunctivitis. Usually called pinkeye, it’s an inflammation of the conjunctiva that covers the eyeball. Your eye may look red in addition to producing copious amounts of discharge. Other causes include abrasions, sand and a blocked tear duct.

What Your Meibomian Gland Does and Why It’s Important to Eye Health

Cases of Meibomian Gland Dysfunction Are on the Rise

A lot of people have problems with the meibomian glands in their eyes, but they do not realize it. These glands are named after the German doctor who discovered them. If you have any eye problems that are new, impact your vision or cause pain, it is important to visit a Las Vegas family eye care physician for an eye exam.

What the Meibomian Glands Do

There are dozens of meibomian glands in the eyelids. They produce an oil that combines with mucous, water and film from your tears to keep your eyes moist. The oil stops the water on the outer layer of your eye from evaporating and causing your eyes to get too dry. A decrease in the quality of the oil or the amount of oil may cause dryness in your eyes.

Causes of Meibomian Gland Problems

There are several causes of meibomian gland problems. The glands may get obstructed, which makes it difficult for the oil to come out. Obstructions of the glands or injuries to the glands may result from wearing contact lenses or using retinoid face creams or supplements. High cholesterol or triglyceride levels, autoimmune diseases, high estrogen levels, eye infections and eye injuries put you at a high risk of meibomian gland disorder.

Symptoms of Meibomian Gland Disorder

It is important to pay attention to your eye health and quality of vision. In the earliest stage of meibomian gland disorder, your eyes may feel dry, irritated and itchy. You might begin to notice irritation, inflammation or an uneven appearance to your lower eyelid. It may feel as if there is a grain of sand stuck in your eye. These symptoms are similar to other eye problems, which is why it is important to visit an eye doctor for an exam and a diagnosis.

Three Types of Common Eye Problems Caused by Autumn Weather Changes

Eye Issues to Watch for During the Autumnal Weather Changes

Autumn provides relief from the intense heat of summertime in Las Vegas. When the weather begins to cool off, however, your eyes might develop some irritation and other uncomfortable symptoms. If your symptoms persist for more than a couple of days, it is important to visit an eye doctor in Las Vegas for an eye exam and symptom assessment.


Itchiness is one of the most common problems that coincides with the arrival of autumn. Many people have allergies to plants that thrive in the autumn weather. Ragweed and grass pollen are some common allergies. The pollen from ragweed and grass is abundant in the morning and on days with low wind. Visiting the eye doctor is a good idea so that you can find out if it is allergies or something else causing the itching.


Irritated eyes are another common problem during autumn. If you are outdoors more, stirring up the sand and dirt may cause your eyes to be irritated. If you do not wear gloves while working in your garden, touching your eyes with dirty hands may compound the irritation. An increase in wind across the desert may cause more sand particles to become airborne. Getting sand in your eyes is a surefire way to get them sore and irritated. If you think you got a particle of dirt or sand in your eye, visit the eye doctor for help.

Eye Infections

Eye infections may also begin to spread more easily in autumn. Kids go back to school, which means more exposure to the germs that cause pinkeye and blepharitis. Hand washing is the top way to prevent the spread of eye infections. Avoiding touching your eyes also reduces your risk. If you think you have pinkeye, it is important to visit the eye doctor.

Tips for Managing Contact Lenses

Three Practical Tips for a Transition to Contact Lenses

There are so many facets of eye health and eye care. If you’re someone who prefers the look of glasses, you can opt for those. If you’d prefer to have corrective eye surgery, you can take that risk as well. It’s also possible to transition to contacts. If you’d like to choose the latter option, there are a few habits you’ll want to develop regarding the maintenance of your lenses. Consider these three practical tips as you transition.

Keep a Pair of Glasses Nearby

If you ever get into a predicament where you lose your contacts, you don’t want to walk around without clear vision. Depending on the type of prescription you have, it might take a few days or weeks to get the new pair. Instead of walking around blind, it’s a better idea to keep a pair of prescription glasses on hand. When you purchase your new contacts, don’t make the mistake of getting rid of the old glasses. Always keep a pair on hand in the case of an emergency. Plus, a day might come when you’re in a rush or don’t feel like putting on your contacts. In that case, you can easily pop on your glasses.

Pull the Drain

In most cases, people take out their contacts or put them in when they’re standing at the bathroom sink. The last thing you want to do is accidentally slip them down the drain. Once you wash your hands thoroughly, close the drain. Handle the rest of the steps and them open the drain again.

Keep Them Clean

In order to maintain eye health, you’ll want to become intentional with your cleaning practices. Always keep the solution on hand for your contact lenses. Always thoroughly wash your hands before you scrub the contacts with your fingers. Make sure that you scrub gently. Always allow the lenses to soak in the solution and keep the containers clean as well.

The transition to contact lenses in Las Vegas might seem a little challenging at first. However, if you remain consistent with your efforts, you’ll be fine. The key is to practice. In this case, practice really does produce perfection.

What You Should Consider When Getting a Pair of Glasses

What to Look for In a Pair of Glasses

If you’ve never purchased a pair of glasses before, the process may seem more straightforward than it actually is. The wide range of options available to you means that you will have a large number of factors to consider. Once you have a firm grasp of what to look for when shopping for glasses, you’ll be able to find ones that suit you perfectly.

Consider the Frame Aesthetics

There are a variety of different frame colors that you can select, the most common of which are brown, black, and a combination of blue and green. The reason that these three color profiles are the most popular is because they match well with any skin tone or hair color. You could also choose a color for your frame based on the color of your eyes. For instance, glasses with a brown color complement blue eyes. Brown eyes work well with practically any color. If your eyes are hazel, rims of amber and green should pair well with them.

Match Frame to Your Skin Tone

You might also want to think about matching the frame to your skin tone. For this example, skin tones are divided into three categories that include neutral, warm, and cool. Warm skin tones have a somewhat golden undertone and pair well with warm colored frames in red, yellow, or brown. Cool skin tones are notable for a slight pink undertone. With this skin tone, you should consider blue, green, or gray frames. Neutral skin types have a combination of pink and golden undertones, which means that you can wear practically any frame with ease.

Consider Frame Width and Thickness

If you have strong facial features that you want to show off, thick frames will help you do so. These frames can also work as a fashion statement. Thin frames will typically blend into the face and allow your eyes to be the focus. Now that you’re aware of what to look for when shopping for glasses in Las Vegas, you can begin your search.