The cornea is the eye’s outermost layer. It is the clear, dome-shaped surface that covers the front of the eye. It can be described as being like a window into the interior of the eye. The main function of the cornea is to allow light to pass into the eye, so that it can reach the lens and then the retina. For this reason the cornea must be transparent. A second chief function is to help focus light, like a camera lens.
Health of the cornea depends on a number of factors, including the health of the conjunctiva and of the eyelids. The conjunctiva is the tissue which covers the front part of the eyeball (but not the cornea) and lines the back of the eyelids. Both the conjunctiva and the eyelids contain glands which make tear fluid. Tear fluid is an essential part of the systems which maintain the health of the cornea.
Diseases of the cornea can cause distorted vision or even loss of vision. Keeping the cornea healthy is a vital part in protecting your vision and the health of your eyes.
DSEK: The partial corneal transplant
DSEK is an acronym for Descemet’s Stripping Endothelial Keratoplasty. Some disease like forms of Fuch’s Dystrophy and select cases of corneal swelling after eye surgery, are due to dysfunction of the cornea’s cells. This layer of cells, called the endothelium, can be replaced surgically with DSEK.
With DSEK, the bottom layer of the cornea is removed and replaced with a small disc of cells from a donor. The replacement of the malfunctioning endothelial cells allows the cornea to once again become clear.
DSEK is performed through small incisions and has a relatively fast recovery period. Usually, the cornea can be greatly cleared by 4 to 6 weeks after the procedure.
Like PKP, DSEK is a corneal transplant procedure, so a lifetime of eye drops and eye examinations are needed afterwards.
Advantages of DSEK as compared to standard corneal transplantation are:
- The eye is left much stronger and more resistant to injury
- There is minimal change in refractive error because the cornea is essentially intact
- Suture-related problems can be eliminated
- Visual recovery is significantly faster and better
DSEK is specifically suited for patients who have posterior corneal diseases with endothelial dysfunction. Patients with corneal conditions such as Fuch’s dystrophy, bullous keratopathy or failed prior corneal transplants are surgical candidates who may benefit from the DSEK cornea surgery. If you are seeking a North Carolina DSEK eye surgeon please feel free to contact us at anytime.
Finding a qualified DSEK eye doctor can make the difference in a successful eye surgery.
Call (919) 967-4836 Ext. 115 or Email: firstname.lastname@example.org for a DSEK consultation today!
With keratoconus, the shape of the cornea is altered, distorting your vision. Keratoconus can make some activities difficult, such as driving, typing on a computer, watching television or reading.
What are the symptoms of Keratoconus?
Keratoconus usually affects both eyes, however; symptoms in each eye may differ. Surprisingly, this is not an eye condition that affects the elderly. Symptoms usually start to occur in people who are in their late teens and early twenties and may include:
- blurring of vision
- distortion of vision
- sensitivity to light
- slight irritation
What can I do about treating Keratoconus?
When keratoconus is initially diagnosed by our ophthalmologists, eyeglasses or soft contact lenses might be used to correct some nearsightedness and astigmatism. In most cases this eye disease actually gets worse over time and the doctors may prescribe hard contact lenses. Other forms of treatment include: Intacs corneal ring inlays or in severe cases an actual corneal transplant. New research is being done with a process called corneal cross linking and is currently under FDA Investigation.
Call (919) 967-4836 Ext. 115 or Email: email@example.com for a keratoconus consultation today!
Dry Eye Syndrome
What is Dry Eye?
Dry Eye, also known as keratoconjunctivitis sicca, is a condition that decreases the eye’s ability to produce tears. Tears help protect the surface of the eye and keep it moist and lubricated. Reduced tear production can lead to damage to the eye’s surface. If the problem is chronic and left untreated, it can lead to eye infection and permanent vision impairment.
What are the causes of Dry Eye?
Dry Eye is caused by a problem in the tear-making glands of the eye. This results in fewer tears. Your risk factors for this condition increase with age, certain medications, menopause, and autoimmune diseases such as arthritis, lupus and Sjögren’s syndrome or due to medical conditions such as diabetes or blocked tear ducts.
Can allergies and weather conditions cause Dry Eye?
Environmental factors such as dust, allergens, smoke, dry air, the heat or air conditioning, wearing contact lenses or reading for extended periods of time and computer use can aggravate Dry Eye, but they are not the cause. The cause of Dry Eye is a dysfunction of the tear producing glands which results in reduced production of tears.
How do I know if I have Dry Eye?
Your eye doctor can check your eyes for clinical signs of Dry Eye. He will look for dryness and damage to the cornea or conjunctiva (the membrane that covers the white part of the eye and the inside of the eyelids) and may measure tear production or break up time. It is also helpful if you describe your condition in detail. Be sure to tell us if you experience burning, itching, the feeling of having “something in your eye,” have difficulty reading for any length of time or have excessive tearing.
What treatments are available for Dry Eye?
In addition to over-the-counter artificial tears, the doctor may recommend a prescription eye drop, such as Restasis or have you try vitamins that contain flaxseed and fish oil. Contact wearers may have to decrease time worn or stop wearing them all together. Another approach is to insert a temporary or permanent punctal plug into the tear duct to prevent the drainage of tears.
What do artificial tears do?
Over-the-counter artificial tears can provide quick but temporary symptom relief and help lubricate eyes. Worse, most generic or store name brands have preservatives that can aggravate the condition, and can even kill corneal cells making your dry eyes worse. Tears that promise to “get the red out” will reduce circulation in the eye, decrease production of the tear film, and eventually make your eyes even drier. It’s always best to make an appointment and ask your doctor before using any dry eye treatment on your own.
Call (919) 967-4836 Ext. 115 or Email: firstname.lastname@example.org for a dry eye consultation today!
Pingueculae are thought to arise as a result of the effects of environmental irritants such as wind and dust and are associated with UV-light exposure and aging. UV-light exposure, wind, dust, outdoor lifestyle and proximity to the equator, age, male gender, smoking, working outdoors, diabetes mellitus may increase the likelihood of pingueculae forming.
What are the symptoms of Pingueculae?
Most pingueculae do not present many symptoms, but may cause ocular surface irritation including foreign body sensation, tearing, burning or itching. Some patients may find these lesions cosmetically unpleasing.
What can I do about a Pinguecula?
Lubrication with artificial tears and ointment can help with ocular surface irritation. Surgical removal of a pinguecula may be considered if it becomes especially uncomfortable, if it interferes with contact lens wear or blinking, or if it is cosmetically bothersome.
Call (919) 967-4836 Ext. 115 or Email: email@example.com for a pinguecula consultation today!
Pterygium is also commonly called “surfer’s eye,” you don’t have to be a surfer to get a pterygium. UV radiation, proximity to the equator, dry climates, outdoor lifestyle. UV radiation from the sun, dry climates, or an outdoor lifestyle can increase the risks of pterygium.
Pterygia are non-cancerous growths, but they can permanently disfigure the eye. They also can cause discomfort and blurry vision.
What are the symptoms of Pterygium?
Pterygia usually occur on the side of the eye closer to the nose, but they can also develop on the side nearest the ear as well and can affect one eye or both eyes.
Many people with mild surfer’s eye may not experience symptoms or require treatment. But large or growing pterygia often cause a gritty, itchy or burning sensation or the feeling something is in the eye. These pterygia can become inflamed and cause red eyes.
What can I do about Pterygium?
Pterygia can be treated with prescription lubricants or mild steroid eye drops that can reduce swelling and redness. A topical cyclosporine may also be prescribed to counter the effects of dry eye. Pterygia should be monitored to prevent scarring that could lead to vision loss.
Call (919) 967-4836 Ext. 115 or Email: firstname.lastname@example.org for a pterygium consultation today!
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