Nearly five million Americans over the age of 50 suffer from dry eye syndrome. These patients complain of eyes that are dry, itchy, irritated, and sometimes downright painful. Eye Drops and artificial tears can deliver relief but is no more than a temporary solution. Furthermore, since artificial tears containing preservatives can only be administered up to 4 times per day, some find that they cannot achieve sufficient relief through such means. As a result, many patients that suffer from chronic dry eyes eventually end up seeking alternative methods of treatment.
One option to solve dry eye is the use of scleral lenses . Though commonly used to treat corneal irregularities and refractive errors, scleral lenses can also provide great relief to dry eye patients. Here are six reasons why.
1. They don’t irritate the cornea as other contacts do : For patients that require vision correction but also have dry eye syndrome, contact lenses are often not an option. Standard soft lenses sit on the cornea, which can be extremely irritating for dry eye patients. They also act as sponges, soaking up the moisture on the surface of the eye. For dry eye patients, these factors make wearing standard contact lenses virtually unbearable. Scleral lenses, on the other hand, sit on the sclera (the white of the eye) and vault over the cornea. The lenses don’t touch the corneal surface at all, thereby minimizing irritation.
2. Their design ensures constant hydration of the eye : The space between the surface of the cornea and the scleral lens is filled with a saline solution. This solution acts as a constant source of hydration for the eye, providing unbeatable relief for dry eye patients. Artificial tears as well as antibiotic can be added into the bowl of the lens prior to insertion to assist in lubricating and promote healing of the ocular surface.
3. They protect the cornea : Dry eye syndrome leaves the eyes more sensitive and the corneas more vulnerable to injury. Even something as simple as the blinking of the eyelids can irritate the eye or even injure the cornea due to the mechanical friction of the eyelids on the cornea. Scleral lenses can act as a shield between a patient’s eyes and their eyelids/the outside environment. This shield protects the eyes from further irritation or damage.
4. They allow the eye to regain a healthier appearance : Patients with dry eye syndrome often end up with eyes that look extremely red, bloodshot, and unhealthy. Part of the problem is the condition itself, while the other issue is that the eyes are continually being irritated or injured further by blinking and/or insufficient hydration. By giving the eyes a shield from the outside world and a constant hydration source, scleral lenses play a therapeutic role in helping the eye heal or stay healthy. In turn, the eyes retain a healthier appearance.
5. Patients can continue using eye drops and artificial tears during lens wear : Patients can continue using preservative-free eyedrops or artificial tears to lubricate the eye during lens wear. There is no “either-or” proposition between scleral lenses or eyedrops. With that said, many patients may find that they can decrease the frequency of artificial tear use once they start wearing scleral lenses, or that they only need eye drops at night after they have removed their lenses for the day.
6. Scleral lenses can drastically improve quality of life : Patients with dry eyes struggle with pain, discomfort, eye exhaustion, confidence issues due to severe eye redness, and more. Scleral lenses do three things at once for these patients: they provide vision correction, they protect the eye, and they serve a therapeutic purpose by lubricating the eye. These factors can improve the quality of life of people with dry eye disease. They decrease pain and/or discomfort, eye redness, the need to repeatedly scratch the eyes or apply eye drops, and simultaneously provide crisp, clear vision during wear.