Eye Care Articles

Amblyopia, also known as a “lazy eye”, is described as a reduced vision in one eye compared to the other. There are some rare forms of amblyopia that involve both eyes. Amblyopia is the most common cause of partial or total blindness in one eye in children.

The term lazy eye is misleading because the eye is not actually lazy. In fact, it is a developmental problem in the nerve connecting the eye to the brain, affecting the brain’s ability to use both eyes together. It is not a problem in the eye itself, but in the brain which actively ignores the visual input from the misaligned eye, leading to amblyopia in that eye.

In addition to poor visual acuity, people with amblyopia are more prone to having difficulties with depth perception, eye movements related to reading, and visual decision making while driving.
 

What Are The Causes of Amblyopia?

Amblyopia develops in childhood due to:

• Significant differences in the prescription (refractive) status between the two eyes due to nearsightedness, farsightedness or astigmatism;

• Constantly misaligned eyes or crossed eyes (strabismus);

• An obstruction of vision in early childhood i.e. cataract, ptosis (droopy eyelid)
   

It is important to note that, because amblyopia is typically a problem of infant vision development, symptoms of the condition can be difficult to detect. Symptoms may include noticeably favoring one eye over the other, an eye turn (either upward-downward outward or inward) or a tendency to bump into objects on one side.

The best way to identify children who are at risk for or already have amblyopia is by performing comprehensive eye examinations.
 

How Is Amblyopia Treated?

Amblyopia can be treatable at any age, although the earlier the problem is found and treated, the more successful the outcomes tend to be.

If you’ve never worn contact lenses before, it can seem a bit intimidating. After all, you’re inserting something into your eye! Let’s ease your mind about the first step – your contact lens exam. This post will walk you through what’s involved in a contact lens exam and what you can expect every step of the way.
 

It begins with a comprehensive eye exam

Your eye doctor will first determine your overall eye health and vision. This includes a discussion of your health history and then a series of standard eye tests. These tests will evaluate eye focusing, eye teaming, depth perception, color vision, peripheral vision, and the response of your pupils to light. The doctor will also measure your eye fluid pressure to check for glaucoma, evaluate your retina and optic nerve, and test your vision with different lenses to assess whether contact lenses can improve your vision.
 

Then, a discussion about your contact lens preferences

If contact lenses are appropriate for you, it’s time to talk about your contact lens preferences. For example, do you want to enhance or change your eye color? Would you prefer daily disposable lenses or overnight contacts? Ask about the benefits or drawbacks of each, so that you can make the best decision. If you’re over 40, your doctor will likely discuss age-related vision changes and how contact lenses can address these issues.
 

Next, the eye doctor will conduct eye surface measurements

Contact lenses require precise measurements of your eyes to fit properly. Using an instrument called a keratometer, your doctor will measure the curvature of your eye's cornea, the clear front surface of your eye. Next, the size of your eye's pupil is measured using a card or ruler showing different pupil sizes, which is held next to your eye to determine the best match.

Contact lenses come in a variety of shapes and styles to suit the range of needs for individual patients. What this means is that there is almost certainly a type of contact lens that will both feel comfortable for you and improve your vision.

Some types of contact lenses are known as speciality lenses. This is because they are designed specifically to overcome some eye issues which may prevent a patient from wearing the most common and generic styles of contact lenses. In fact, speciality contact lenses have transformed the vision options of many patients who would otherwise have only had the choice between wearing glasses or undergoing laser vision correction. There are numerous types of speciality contact lens, including scleral lenses.
 

What are scleral lenses?

Scleral contact lenses get their name from the fact that, unlike regular contacts, they vault over the entire corneal surface and rest on the white part of the eye, which is called the sclera. This makes them larger than standard contacts, which in turn provides a variety of benefits. Their size makes them easier to handle and more stable when on the eye, which in turn provides the patient with sharper and more reliable vision. They are also less likely to become dislodged and come out. 

Scleral contact lenses are also gas permeable, which means that oxygen can pass right through them and reach the surface of the eyes. This is important for comfort, particularly for patients who experience dry eyes. The gap that is created between the back of the contact lens and the front surface of the eye can also trap tear film, acting as a fluid reservoir which will keep the eyes moist and healthy. 
 

Types of scleral lenses

Within scleral lenses there are several different sizes to choose between. These are based on where the lenses meet the surface of the eye and are as follows:

• Full scleral lenses: the largest type, they provide the greatest amount of clearance between the cornea and lens and rest on the outer sclera. 

• Mini scleral lenses: the mid-size variety, make contact with the eye on the anterior sclera. 

• Semi-scleral lenses: although larger than conventional lenses, they are not huge, and the edge of the contact lens rests on the junction between the cornea and the sclera. 
   

Your scleral lens provider will be able to make a recommendation as to the correct size for you, which will be based on your individual requirements. 

As our bodies age, it is normal to notice that there are decreases in our ability to complete certain functions that may have been natural for us in our youth. Just like our physical strength, the strength of your eyes can also weaken over time.

Several different factors influence how each of us will experience aging. Your genetics can play a pivotal role. Understanding your family history and making sure to communicate this with your health professional can be a great way to monitor changes and spot early signs and symptoms. Exposure to certain chemicals or environments or specific trauma to our eyes can also have an impact on how our eyes age. While the eyes can often recover from traumatic injury or exposure, they may still have a detrimental effect on your vision as you age.

Knowing what age you start to have an increased risk of certain diseases or eye conditions can help you to be prepared when you meet with your optometrist. Here are some of the most common ailments that people experience when they age.
 

Presbyopia

Once you are over 40 years old you may experience a loss in vision at close range. Presbyopia is a normal condition that occurs due to the hardening of the lens in your eye. In the early stages, you can often compensate for small changes to your vision, but as the condition progresses, you will likely need a corrective lens, or choose a surgical procedure. such as Lasik, corneal inlays, refractive lens exchange, and conductive keratoplasty.
 

Cataracts

Cataracts are technically a disease of the eye. However, they are so frequently seen in patients as they age, that they are classified as a normal part of aging. While almost half of the population over 65 have cataracts, that number increases even more by age 70. While it can be frightening to begin losing your vision, cataract surgery is extremely successful and can restore up to 100% of the lost vision. If you notice even small changes to your vision, it is smart to talk to your doctor. Cataract surgery is best performed when the cataracts are small and can be more easily removed.
 

Macular Degeneration

This disease is the leading cause of blindness in senior citizens in the United States.
 

Glaucoma

The risk of developing glaucoma generally begins when you are in your 40’s with a near one percent chance and increases throughout the decades with a twelve percent by the time you are in your 80’s.
 

Diabetic Retinopathy

Individuals who have diabetes may be affected by diabetic retinopathy. This disease occurs when blood sugar levels are elevated for an extended period that causes damage to the eye. This damage may lead to permanent vision loss. Americans with diabetes over the age of 40 are at an increased risk, with about 40 percent of people with diabetes over this age displaying some degree of diabetic retinopathy.

Clean eyes are healthy eyes. Nevertheless, our eyes are exposed to countless potentially harmful microorganisms during the course of an ordinary day. This could be anything from dust and pollen, which could cause allergies, or infection-causing bacteria. Daily cleansing is the best way to keep eyes clean and free from debris, but to maximize the effects of your cleaning, it’s important to use products that are designed just for your eyes. Thankfully, there is OCuSOFT.

A large part of the OCuSOFT product line is a selection of non-irritating products that are designed specifically to help remove any oil, debris, and pollen from the eyelids and eyes, leaving them as clean and healthy as possible. Here are some of the products that you may be interested in: