What are Emerald™ contact lenses for overnight wear?
Emerald lenses are a unique rigid gas permeable contact lens design that temporarily corrects myopia by gently reshaping your cornea while you sleep. You may then be able to go throughout the day without any lenses. Emerald Lenses are made from the approved extended wear contact lens material Boston® Equalens® II in a special design intended for this purpose.

Can everyone wear Emerald?
Not everyone can wear Emerald Contact Lenses for Overnight Wear. These lenses are intended for individuals with low to moderate myopia (up to -5 diopters) and moderate astigmatism (1.50 diopters or less).

What is needed to fit Emerald?
Only Rx, K readings and HVID are needed to fit Emerald. Subsequent visits will benefit from corneal topography, but for minimizing chair time on the initial fit, no other corneal reshaping system compares to Emerald.

How likely is it that Emerald will work for me?
Of the 210 eyes that completed the study with complete efficacy data (core cohort), 73% obtained 20/20 or better without other correction and 95% obtained 20/40 or better at 9 months.* Visual acuity of 20/40 is required in most states to drive without glasses.
*Euclid Systems FDA study for Overnight Orthokeratology – P010062

Is Emerald Vision Shaping Treatment permanent?
No, it is temporary. If you stop wearing the lenses regularly, your lens-free vision will decline.

Who should not wear Emerald Lenses for Vision Shaping Treatment?
Persons who exhibit any of the following conditions:
• Inflammation or infection of the eye
• Any eye disease, injury, or abnormality that affects the cornea or surrounding tissue
• Any systemic disease that may affect the eye or be worsened by wearing contact lenses
• Allergic reactions of eye which may be caused or exaggerated by wearing contact lenses or use of contact lens solutions
• Eyes that are red or irritated, or suffer severe dryness

What are the risks of wearing Emerald lenses for Vision Shaping Treatment?
There is a small risk involved when any contact lens is worn. It is not expected that the Emerald lenses will provide a risk that is greater than other overnight wear rigid gas permeable contact lenses. Because this procedure is temporary, some patients may notice changes in their vision late in the day. The most common patient symptoms concerned poor distance vision and flare/ghosting (visual disturbances). The incidence of these symptoms tends to decrease over time in Vision Shaping Treatment, and they will go away if lens wear is discontinued.

The two most common side effects that occur in general rigid contact lens wearers are corneal edema and corneal staining. It is anticipated that the same side effects will also occur in some wearers of Emerald lenses. Other side effects that sometimes occur in all contact lens wearers are pain, redness, tearing, irritation, discharge, or abrasion of the eye. These are usually temporary conditions if the contact lenses are removed promptly.

In very rare instances, infections of the eye, corneal ulcer, inflammation within the eye (iritis), new blood vessel growth into the cornea (neovascularization), and corneal scarring, and resulting permanent decreases in vision may occur. The risk of serious problems (such as corneal ulcers and vision loss) is greater when lenses are worn overnight. In addition, studies have shown that smoking increases the risk of corneal ulcers, for those who wear lenses overnight.

What Care System should be recommended with Emerald lenses?
We proudly recommend Boston Simplus™ or Boston Advance® lens care products for GP (gas permeable) lenses.

How long does it take to achieve good vision?
Most patients have rapid improvement in the first few days of treatment and have achieved nearly their optimum vision within about 1 month.

What steps can be taken until my patient achieves optimal results with Emerald?
Since Emerald lenses are designed with the appropriate power correction, the patient may re-insert the lenses if their vision begins to fade late in the day. Early in the treatment period you may wish to provide a pair of disposable soft lenses to compensate for the yet corrected myopia.