Do your eyelids ever look red, feel sticky, or sore? Do you have a constant itch in the corner of the eye that you just can’t scratch? Maybe it feels even worse when you wake up in the morning.
You may be one of the estimated 25 million Americans who suffer from blepharitis.
Lazy eye is misunderstood. What does having a lazy eye really mean?
A true “lazy eye” is not an eye that is fatigued or has a high corrective prescription. The definition is an eye with reduced vision due to abnormal visual development.
Individuals with lazy eye depend heavily on their normal eye to see, while the weaker (amblyopic) eye will worsen over time from lack of stimulation from the brain. Why is an eye considered lazy?
Lazy eye presents in only 3 out of 100 children. However, it is the leading cause of decreased vision in children. Also, understand you are born with lazy eye. You cannot develop a lazy eye later in life.
Do your eyes ever feel gritty? Sandy? Do they burn? Feel like a foreign body or eyelash is in them at the end of the day? These symptoms are often due to dry eye disease.
It is estimated that dry eye affects nearly 1 in 5 Americans.
In the U.S., there were 24.4 million cases of cataracts in 2010, and the number is expected to double to 50 million by 2050, according to the National Eye Institute.
A cataract is a clouding of the crystalline lens inside the eye which leads to a decline in vision. Aging is the most common reason for a cataract, but other factors include disease, trauma, and certain medications. Most cataracts grow slowly over decades, but some may progress more quickly.
The crystalline lens is the structure located in the middle of the eye, in front of the retina, but behind the iris (colored part). All light that enters the eye goes through the cornea and the lens to get to the retina. If a cataract is affecting the lens, distorted vision is the result. Glasses and contacts are unable to correct the vision until the cataract is removed.
Besides correcting vision, contact lenses may be potential treatment devices to relieve eye pain, help the cornea to heal from injury, protect and hydrate the surface of the cornea from dry eye disease, and deliver medications to the eye.
Many ocular conditions like allergic conjunctivitis, dry eye, and glaucoma are treated using eye drops. It is estimated that 95% of the active ingredient in the medication may be lost through tear drainage. Technological advancements have made it possible to use soft contact lenses to deliver a continuous release of medication over a duration of time to treat ocular conditions and disease.
The ability of the soft contact lens to absorb and release a drug is based on the contact lens material. Their potential as a treatment depends on the water content, the thickness of the lens, the molecular weight of the drug, the drug concentration, and the time it remains within the lens.
Topical eye drops can be an inconvenient burden for patients. Delivering medication by way of a contact lens has many benefits and offers a glimpse into the future of treatment.
Let’s look at the potential benefits of using contact lenses to deliver medication to your eyes.
Copyright 2020 EZContacts.com. All Rights Reserved.
