Dry Eye Diagnosis and Treatment
Dry eye is a common condition that occurs when the eyes are insufficiently moisturized. Common symptoms include itching, redness, pain and blurred vision from dry spots on the surface of the eye. The symptoms are worse in winter, towards the end of the day, after reading or using a computer for some time, while driving and out in the wind. Women are more affected than men but it is common in both sexes. The eyes may become dry and irritated because the tear ducts don't produce enough tears or because the tears themselves are poorly balanced. There is an oil, water and mucus component to the tears and they have to be balanced in order for the tears to coat the eye effectively.
Patients with this condition often experience irritating symptoms and can suffer from more serious vision damage if this condition is left untreated. It is important for patients with this condition to take special care of their eyes in order to alleviate symptoms and prevent complications. Your doctor can diagnose dry eye after a thorough evaluation of your eye and tear production through a Schirmer tear test.
Causes of Dry Eye
People usually begin experiencing dry eye symptoms as they age, but the condition can also result from certain medications, conditions or injuries. Dry eye tends to affect women more often than men, as the hormonal changes that take place during pregnancy, menopause and with the effects of oral contraceptives can affect the consistency of tears. It is also more common in people over the age of 50. Other causes may include:
- Medications such as antihistamines, decongestants, blood pressure medications and antidepressants
- Conditions such as rheumatoid arthritis, diabetes and thyroid problems
- Environmental conditions such as smoke, wind and dry climates
- Long-term contact lens use
- Refractive surgery
These factors can affect the frequency or consistency of tears, both of which can lead to dry eyes. Our natural tears require a certain chemical balance in order to efficiently moisturize the eyes.
Symptoms of Dry Eye
Patients with dry eye may experience certain symptoms from this condition, usually affecting both eyes, which may include:
- Stinging or burning sensation
- Irritation from smoke or wind
- Eye fatigue
- Sensitivity to light
- Difficulty wearing contact lenses
- Excessive tearing
Dry eye is not only painful; it can also damage the eye's tissues and impair vision. Fortunately, many treatment options are available to help relieve symptoms and restore health back to the eyes to ensure clear vision and long-term health.
Treatment for Dry Eye
Treatment for dry eye depends on the cause and severity of the condition, as well as the patient's overall health and personal preference. Non-surgical treatments are often effective, and may include blinking exercises, increasing humidity at home or work, and use of artificial tears or moisturizing ointment. Prescription eye drops such as Restasis are also available which balance the components of the tear film so it coats the eye better.
Another option is the use of small punctal plugs which may be inserted in the corners of the eyes to limit tear drainage. Eyelid surgery is also a solution if an eyelid condition is causing your dry eyes. Treating the underlying cause of dry eyes can also help relieve the symptoms of this condition.
Preventing Dry Eye
There are certain steps patients can take to prevent the symptoms of dry eye from occurring, which are especially useful for those at an increased risk for developing these symptoms. Simple life modifications such as keeping a humidifier at home or at work, wearing glasses on windy days, giving your eyes a break during reading or other strenuous tasks and avoiding smoking can all effectively reduce the frequency and severity of symptoms.
Your doctor will provide you with specific instructions as to how you can specifically avoid symptoms based on your individual condition.
LASIK in Dry Eye Patients
If your eyes are dry already, this has to be treated before you can have LASIK Vision Correction. The reason for this is that everyone's eyes are slightly more dry after LASIK. This is because the tiny nerve endings on the surface of your eyes have been interrupted the LASIK flap and take about 3 months to regenerate. During this time the signal to the lacrimal gland has been lessened so you produce fewer tears. We generally use punctal plugs and/or Restasis drops along with artificial tears to be sure our dry eye LASIK patients do well after surgery.
Contact Lenses and Dry Eye
Unfortunately if your eyes are dry they will become more dry with the use of contact lenses. This is because the contacts, especially soft ones, absorb your tears leaving less to moisturize the eye. We can use the same treatments noted above to try to keep you comfortable in your contacts but this is a common reason for discontinuing contact lenses. If your eyes hurt when the contacts are in you may be damaging your eyes so you need to seek treatment or not wear the contacts. Many dry eye patients who can no longer tolerate their contacts elect to have LASIK vision correction. Of course the dry eye condition must be treated prior to surgery but LASIK is often much better tolerated than contacts in dry eye patients.
To learn more about our Dry Eye services provided at our practice, please call us today to schedule an appointment.