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The parts of a comprehensive eye examination vary according to the patient's age, date of last exam, and other factors. Not all parts of the eye exam may be needed or performed, but the first part of the eye exam will include documenting medical history. Here are some eye and vision tests that are likely to be encountered during a comprehensive eye exam:
 

Visual Acuity Tests

Visual acuity tests measure the sharpness of vision and are usually performed using a projected eye chart to measure the distance visual acuity and a hand-held small acuity chart to measure the near vision (for reading).
 

Color Blindness Test

A screening test that checks the color vision is often performed early in a comprehensive eye exam to rule out color blindness.
 

Cover test to check eye alignment.

A test used to assess strabismus or a more subtle binocular vision problem that could cause eye strain or amblyopia (lazy eye).
 

Ocular Motility (Eye Movements) Testing

Ocular motility testing is performed to determine how well eyes can follow a moving object and/or quickly move between and accurately fixate on two separate targets.
 

Stereopsis (Depth Perception) Test

This is used to test perception of depth and 3-dimensional structure obtained on the basis of visual information deriving from two eyes by individuals with normally developed binocular vision.
 

Retinoscopy

This test is used to estimate which lens powers will best correct distance vision. Based on the way the light reflects from the eye, the doctor is able to obtain an approximation of the eyeglass prescription. This test is useful for children and patients who are unable to accurately answer the doctor's questions.
 

Manual refraction with a phoropter.

This is the test used to determine the exact eyeglass prescription.

When you were a kid, did you experience your eyes become reddish and all of a sudden, someone close to you was also suffering from it? Your eyes, as well as those who contracted it, got itchy and swollen, right? Then it must have been that you were suffering from pink eye.

Pink eye is well known as conjunctivitis and it is the infection or inflammation of the conjunctiva or the transparent membrane that serves as a covering for the white part of the eye called the sclera that lines the eyelid. In addition to inflammation, there is usually tearing in the eyes that emits a sticky discharge which develops into a crust while one is sleeping, making it difficult for the patient to open their eyes in the morning.

One thing about the pink eye, which could affect one or both eyes, is that it is highly contagious. While it is more common in children, adults can also be victims of this eye condition. Here are the 3 major causes of pink eye:
 

Bacteria

Streptococci and staphylococci are bacteria types that are most responsible for pink eye. However, chlamydia and gonococci can also cause pink eye. It is accompanied by serious eye pain, itching, swelling, redness, and discharge. The spread of bacterial pink eye is usually as a result of using personal items of infected parties, such as makeup or makeup tools that have been infected with bacteria or putting dirty hands in the eyes. If not treated, it can last for more than 10 days, but if treated, it should resolve in less than 3 days.
 

Allergies

Pink eye caused by allergies is followed by serious itching and tearing of the eyes. Pain is minimal, but it typically comes with quite a bit of discomfort. Most of the time, pink eye is accompanied by sneezing or coughing. Allergens that trigger pink eyes include grass, dust, pollen, mold, and ragweed. Allergy based pink eye is not usually contagious.
 

Viruses

Viruses such as the adenoviruses and herpes virus are the most common causes of pink eye. When a virus is the cause, there is usually a lot of teary discharge accompanied by nasal congestion, puffy eyelids, runny nose, and sharp pain. It is usually contracted from cough and sneeze droplets from an infected individual. It can take as long as 2 weeks to treat depending on the seriousness of the infection.

General Symptoms of Pink Eye:

• Itchy eyes

• Redness of the sclera

• Pain

• Watery discharge

• Swollen eyelids

• Hazy or blurry vision

• Oversensitivity to light
   

Prevention

The best way to prevent pink eye is by practicing good hygiene which includes:

• Avoid putting dirty hands in your eyes

• Make it a habit to wash your hands often

• Avoid sharing towels and other personal items

• Do not use dirty items

• Changing your pillow cover regularly

• Do not leave a makeup item open for too long

• Avoid sharing makeup items like eyeliners, mascara, etc.
   

Treatment of Pink Eye

• The treatment of pink eye is dependant on its underlying cause. If it is caused by a virus, you just might have to wait for the virus to run its course which could last for about four to seven days. Virus caused pink eye could be easily contracted so it is imperative to try and prevent further spreading. Viruses cannot be cured by antibiotics, but some antiviral drugs could be helpful.

• Antibiotics are most effective against pink eye caused by bacteria as they reduce the lifespan of these bacteria and could come in the form of eye drops or pills. Based on the doctor’s prescription, an eye drop should be administered about four to six times daily. It is important you finish using your drugs even after the disappearance of symptoms.

• To deal with pink eyes caused by allergies, the allergy should be treated. Once treated, pink eye should disappear. It is also important to avoid allergens as much as possible so as to avoid pink eye.
   

Whenever the symptoms of pink eye emerge, the best preventive measure is to stay at home until the watery discharge ceases to avoid the spread of the bacteria or virus. You should also visit your doctor immediately to begin treatment. While mild pink eyes generally go away on its own, some of the more serious forms can cause a scar on the cornea.

What Is Demodex?

The Demodex mite is a type of parasite that lives on humans and can reside in hair follicles and sebaceous glands. These mites are arachnid (eight-legged) and invisible to the naked eye, varying in size from 0.1mm to 0.4 mm long. They typically live on the face and in the hair follicles of the eyebrows, eyelids, roots of the eyelashes, facial hair, and around the ears and are associated with various skin problems of the eyes and face, such as blepharitis and acne rosacea.

Demodex can affect humans at any age, but their presence increases in prevalence with increasing age. Immunity compromised patients such as diabetics, patients on long-term corticosteroids or chemotherapy, or patients who have HIV/AIDS also have increased risk and prevalence of Demodex infection. Usually, when the immune system is weakened and the parasitic population has colonized, this disease can badly damage the skin.
 

How Can Demodex be Transmitted?

For transmission of mites from one person to another, direct contact of hair and sebaceous glands on the nose, or dust containing eggs is required. Since the disease processes begin when there is an overpopulation of Demodex, the vast majority of cases of mites go unobserved and don't show any adverse symptoms. However, in certain cases, the mite populations migrate and multiply in the eyelashes.
 

What Are The Types of Demodex?

There are two existing types of Demodex mites: the longer kind, Demodex folliculorum, which live in the hair follicles and the short ones, Demodex brevis, which live in the sebaceous (oil) glands in the skin.
 

What Are The Symptoms of Demodex?

In the early stages, there are often no noticeable symptoms, but if left untreated Demodex can progress. Symptoms vary among patients and may include dry eye, red eyes, severe itching along the eyelid margin and eyebrow, especially in the morning, eyelid irritation, burning sensation, foreign body sensation that seems to originate beneath the eyelids, heavy lid, and blurry vision. One of the earliest signs of mite infestation is cylindrical dandruff (CD), which is the accumulation of fine, waxy, dry debris that collects at the base of the lash and extends up to 2 mm along the length of the lashes and is most noticeable on the upper lashes.
 

Low vision is a term for conditions that result in reduced sight and cannot entirely be corrected with eyeglasses, contact lenses, medicines or surgery. Several eye diseases or conditions can cause low vision and here we will discuss the four most common causes of low vision and their risk factors.
 

Macular Degeneration

Macular degeneration is a disorder that affects the retina, which is the light-sensitive tissue lining the inside of the eye. Within the retina, the area responsible for sharp central vision (called the macula) deteriorates, causing blurred vision. This can cause a blind spot in the central area of vision, which leads to low vision.

There are two types of macular degeneration – non-exudative (dry form) and exudative (wet form). The dry form usually progresses slowly, while the wet form causes more rapid and severe vision loss due to abnormal blood vessels developing under the macula and leak fluid and blood. The biggest risk factor for macular degeneration is age. Other risk factors include genetics, race, smoking, and high blood pressure.
 

Diabetic Retinopathy

Diabetic retinopathy is a diabetes complication that affects the eyes. High blood sugar levels cause damage to blood vessels in the retina. These blood vessels can swell and leak (called macular edema). Sometimes they close, stopping blood from passing through (called macular ischemia). At first, diabetic retinopathy may cause no symptoms or only mild vision problems. However, over time, it can severely damage the retina, leading to low vision. Anyone who has diabetes can develop diabetic retinopathy. The risk increases for those who have had diabetes longer, as well as those with poor control of blood sugar levels, high blood pressure or cholesterol as well as those who smoke.
 

Cataracts

A cataract is a clouding of the lens in the eye that affects vision. This clouding can block the light from reaching the retina at the back of the eye, resulting in a general loss of vision. In some cases, a cataract can be surgically removed. Cataract surgery has a high success rate in otherwise healthy eyes but it is not always possible for people who also have other eye diseases. While the risk of cataract increases as you get older, other risk factors include diabetes, smoking, alcohol use, and prolonged exposure to ultraviolet sunlight.
 

Glaucoma

Glaucoma is a disease that damages your eye’s optic nerve. Most commonly, this occurs when fluid builds up in the front part of your eye which increases the pressure in your eye, damaging the optic nerve. There are four types of glaucoma: open-angle, normal tension, angle-closure, and secondary.
 

If you dislike wearing glasses and you are not a suitable candidate for laser eye surgery, then implantable contact lenses (ICL’s) may offer the permanent vision correction solution that you require.
 

How do implantable contact lenses work?

Implantable contact lenses basically work in exactly the same way as standard, external contact lenses do. ICL’s alter the shape of the cornea in order to correct refractive errors such as near and far-sightedness, and astigmatism. However, unlike non-permanent contact lenses, ICL’s are surgically placed inside the eye rather than over the top of it. 

Implantable contact lenses are also sometimes known as phakic intraocular lenses (IOL’s). The reason for this is because the two share a number of characteristics. IOL’s are seen in cataract surgery where they take the place of the affected natural lens after it has been removed. However, when used as implantable contact lenses they work in conjunction with the natural lens of the eye in order to correct your vision.
 

What happens during the procedure?

The procedure requires your surgeon to make a tiny incision into the cornea to allow access to the natural lens underneath. The ICL is then inserted through the incision and placed either in front of or behind the iris which is the colored part of your eye and in front of the natural lens. The incision into the cornea is able to heal naturally without stitches, and the entire process is extremely quick.
 

Will it hurt?

Your surgeon will give you anesthetic, usually in the form of eye drops, ahead of the procedure and therefore you should experience very little, if any, discomfort.
 

LASIK is the number one elective surgical procedure today, and more than a million Americans have had the procedure since its inception. The main reason for its popularity is the many benefits that it offers, including minimizing or in some cases even eliminating the need for the patient to use eyeglasses or contact lenses after the procedure.
Let’s take a look at why LASIK is taking the ocular world by storm.
 

Better vision

Clearly, the biggest reason for choosing LASIK is improved vision. While some patients have relatively mild problems with their eyesight, others experience major disturbances in their vision that makes functioning day to day almost impossible without the use of visual aids. LASIK can dramatically improve the quality of your vision, reducing the need to wear visual aids, or in some cases, completely eliminating it.
 

A good investment

Eyesight is also notoriously inconsistent, with the majority of people finding that their vision marginally improves or deteriorates with each visit to their optician. When this happens, it is necessary for the optician to recommend a different prescription, and this means expense as the patient finds themselves purchasing new eyeglasses or contacts to reflect their new visual requirements.

Although there is no guarantee that you will be able to completely prescription-free after LASIK, most patients find that eyesight is so improved that any changes to their prescription are much less frequent. 
Eyeglasses and contacts are known for being fiddly and fragile, and the need for maintenance and replacements are a common complaint. However, with less need for such devices, the cost of caring for them is also reduced. 
 

A short, painless procedure

LASIK surgery can be performed in one, very short procedure. You should expect to spend around 30 minutes in the surgery suite, but the actual time it takes can be as little as 10 minutes – for both eyes! The remainder of the time will be spent preparing you and ensuring you are comfortable afterward. The entire process is carried out after anesthetic drops have been placed into your eyes, so you can rest assured you will feel absolutely no pain throughout. However, if you are particularly anxious about the process, it may be possible to be given a sedative to help you relax.
 

You might be surprised at how many tests eye doctors use to diagnose glaucoma. A proper diagnosis requires careful evaluation of many aspects of your eye’s health – from eye pressure to cornea thickness to the health of your optic nerve. This article describes how your eye doctor assesses your risk and all the tests needed to properly diagnose glaucoma.
 

Risk Factor Assessment

Your eye doctor will begin by assessing your risk level for developing glaucoma. This will help determine the frequency and extent of testing needed. Through a family history and medical questionnaire, the eye doctor is looking for the following risk factors:

• Over the age of 60

• Ethnic background such as African or black Caribbean descent, Hispanic, or Asian

• Family history of glaucoma, such as a sibling or parent with glaucoma

• History of eye conditions, injuries or surgeries

• Prolonged corticosteroid use (eye drops, pills, inhalers or creams)

• Chronic conditions that affect blood flow, such as migraines, diabetes, low blood
  pressure or hypertension

• Current or former smoker
   

If you’ve already had a comprehensive eye exam, your eye doctor will also consider these risk factors:

• Eye pressure higher than normal (above 21 mm Hg)

• Thin corneas (less than 0.5 millimeters)
   

Your type of eyesight is also important. People with farsightedness are at a higher risk for narrow-angle glaucoma, a more serious type that can advance quickly. While nearsightedness is associated with open-angle glaucoma, which progresses slowly without any symptoms.
 

Standard Glaucoma Tests

During a comprehensive eye exam, your eye doctor will always check for glaucoma, regardless of the risk level. This provides a baseline for comparison as you age. There are two tests: tonometry and ophthalmoscopy.
 

If you have dry eye syndrome, you understand the frustration of repeatedly applying eye drops and other therapies in vain. The iLux®, a new product on the market, may help address your problem. 

It treats dry eye syndrome by combining heat and pressure to clear obstructions from the meibomian glands. Learning how it works and its advantages in treating dry eyes may help you.

What Is iLux?

Millions of individuals worldwide suffer from the prevalent ailment known as dry eye syndrome. This happens when your eyes do not produce tears in sufficient amounts or when tears evaporate too soon. Discomfort, irritability, and even eyesight issues may result from this. Although several treatments for dry eyes exist, many are transient and call for repeated application.

iLux is a medical device designed to treat dry eye syndrome. It combines heat and pressure to remove blockages from the meibomian glands. These glands in the eyelids produce the oil that prevents your tears from evaporating too quickly. 

The handheld device is easy to use, making it a convenient and effective solution for those who suffer from dry eyes. It is a practical choice for people with busy schedules because no downtime or recovery period is necessary.

How Does It Work?

The device works by applying gentle heat and pressure to the eyelids. This helps loosen and remove blockages from the meibomian glands. The treatment allows the glands to function properly, producing the necessary oils to keep the eyes moisturized and healthy. The device also provides targeted treatment to specific areas of the eyelids. This allows for a more customized and effective treatment experience.

Benefits 

Using this medical device to treat dry eyes offers numerous benefits, including:
 

• Improved Comfort

Dry eyes can cause discomfort, irritation, and even pain. By treating dry eyes with iLux, you can experience improved comfort and reduced symptoms.
 

• Enhanced Vision

Dry eye syndrome can affect vision, causing blurriness or difficulty focusing. Treating the condition with iLux can help improve vision and clarity.
 

• Noninvasive

Unlike other treatments for dry eyes, such as surgery, iLux is a noninvasive solution that requires no downtime or recovery period.

How to Use the Device

Using iLux to treat dry eyes is straightforward. Since it is handheld and portable, this device is easy to use at home and when traveling.

To use it, follow these steps:
 

• To determine if it is a good fit for you and to get usage instructions, consult your eye doctor.

• Position the device against your closed eyelid over the affected area.

• It will apply gentle heat and pressure to the eyelid, helping remove blockages from the meibomian glands.

• Repeat this process on each eyelid as instructed by your doctor.

After using it, you may experience some mild discomfort or redness in the treated area. These are usually not severe; they should go away within a day or two.

Conclusion

If you are experiencing dry eyes, the iLux might be the solution for you. This noninvasive medical device uses heat and pressure to remove blockages from the meibomian glands. The treatment allows for improved eye health and comfort. To learn more about the device and whether it is right, consult your eye doctor today.

Over the years, contact lenses have evolved. A new product called MiSight is giving children a new and improved option. MiSight lenses effectively treat myopia, otherwise known as nearsightedness.

Myopia

Myopia is the medical term used for nearsightedness. Of all correctable visual impairments, myopia ranks number one. With this condition, the eye grows too long from the front to the back. As a result, images don’t focus on the retina. Instead, they focus at the front of it. With this refractive error, individuals can see things up close without any problem but everything at a distance appears blurry. Over time, myopia in children typically worsens. This refractive error puts them at risk of developing other problems. For example, they’re more prone to having premature cataracts and detached retinas as an adult.

To treat this condition, most opt for prescription eyeglasses or contacts. Although MiSight Lenses work similarly to conventional lenses, they’re unique.

Benefits of MiSight Lenses

These contacts slow the progression of myopia in children between the ages of eight and 12. Even more exciting, they slow the progression by as much as 59%. For instance, if an ophthalmologist or optometrist diagnoses a child with nearsightedness and predicts a diopter of -8.00, MiSight contact lenses can reduce that to about -3.50.

As the only contact lens on the market capable of doing this, the Food and Drug Administration (FDA) fully approved them in 2019.

Another benefit of wearing MiSight contacts over traditional lenses is their soft lens. Especially for younger wearers, they provide optimal comfort.

Also, an individual only wears them once before discarding them. It’s important to note that these contacts aren’t made for overnight wear. For that reason, users need to remove them from the eyes and discard them at the end of each day.

Uniquely Designed

MiSight contact lenses work because of their unique design. After placing them in the eyes, one portion of the lens corrects the refractive error of nearsightedness. This allows the individual to see things at a distance. Another part of the lens focuses some light in front of the retina. This element of the design causes the progression of myopia to slow down. 

MiSight contact lenses are ideal for both slight and severe cases of myopia. Even some of the other more advanced contacts can only correct around 1.00D. For short-sight prescriptions, an optometrist can prescribe MySight contacts as low as -0.250 and as high as -6.00D.

Correcting Vision Safely and Effectively

MiSight contacts are not ordinary lenses. Rather, they treat the myopia refractive error so that children can see better and prevent their vision from becoming worse. They also reduce the risk of additional eye and vision-related problems. Everything combined makes these contact lenses a perfect choice for treating myopia in children.

Myopia is a very common issue throughout the world. Approximately 1/3 of the population in the United States have the condition and over 90% of several East Asian countries suffer from myopia. While myopia may seem like such a common condition that it shouldn’t be cause for concern, it is actually associated with several very serious conditions that can threaten one’s ability to see.
 

What is Myopia

Myopia, more commonly known as nearsightedness, is a condition where individuals are able to see objects that are close to them but may have difficulty distinguishing things at a distance, such as road signs or leaves on a tree. These individuals often squint at objects that are further away to try and help bring them into focus.

Currently, there is no known cure for myopia and recent studies suggest that the more advanced your myopia gets, the more serious the effects can be on your vision. This has led eye professionals to look for ways to slow the progression of myopia in children and young adults as the eyes typically change more rapidly during this time and slowing down myopia progression during these years has a huge payoff. 
 

Types of Myopia Control

There are a few different treatments for myopia that have proven to be effective in a number of studies. Of course, to ensure you find the most effective choice for you, be sure to visit with your eye doctor so they can review your case and recommend the best options for you.

Ortho-K | Ortho-K or Orthokeratology is one practice being used to slow down the progression of myopia. Ortho-K utilizes a special rigid gas-permeable contact lens that is placed into the eyes just before you go to bed. This hard lens helps to gently hold your eye in the proper shape throughout the night. Then when you wake up in the morning and remove the lenses, your eye continues to maintain that shape. This means that people who are nearsighted can see clearly throughout the day, even without wearing contact lenses or glasses. This approach is often preferred for athletes or other active individuals.

Atropine Eye Drops | One of the thoughts about the progression of myopia, is that it is associated with eye strain. The additional stresses that are placed on the eye when straining push the eye further out of its proper shape. Atropine eye drops are specifically designed to help stop the eye from straining and help the muscles relax. Atropine is similar to the eye drops that are used when you get your eyes dilated but lasts throughout the entire day rather than just a few hours. Atropine dilates the pupil of the eye and prevents them from closing too tightly and limiting your vision. This treatment has been shown to be especially effective in slowing the progression of myopia in children.
 
Multifocal Eyeglasses and Contact Lenses | These specialty contact lenses are designed to help reduce strain on the eyes. They have shown great success at slowing the progression of myopia over a three-year period when compared with individuals who wore a standard prescription lens.