The Lens: 

MyDay is a silicon hydrogel daily disposable lens, meaning it has higher oxygen transmissibility than many other daily disposable lenses on the market.  This is a great health point for people with previous history of eye infections or corneal neovascularization or scarring from prior contact lens issues.  The health benefits of this higher breathability puts this lens in a top lens safety category with Dailies Total 1 and Acuvue TruEye.  The lens material itself is incredibly thin and lubricious -- when placed on your eye it truly does have that "I don't feel like I'm wearing contact lenses" feel.

Base Curve: 8.4 mm

Diameter: 14.2 mm 

Power Range: +6.00 to -10.00

Dk/t: 100

Head to head this lens fits very similar to Dailies Total 1 with a steeper base curve and typically very little movement on the eye with blink (creating excellent comfort).  A big pro for MyDay is that it is available in plus powers; Dailies Total 1 is still currently only available in -0.50 to -10.00. Another real advantage to MyDay is its' aspheric optic design, meaning that the lens corrects for the average cornea's "higher order" aberrations -- irregularities that bend and bounce light, disrupting the crispness and clarity of your vision.  Corneas with low amounts of astigmatism or corneal irregularity could potentially achieve better vision in a lens with aspheric optics.  Update: I wore this night driving recently on a dimly lit highway and was really impressed with the quality of my vision compared to my other two favorite contact lenses for comfort, Dailies Total 1 and Acuvue 1 Day Moist.  Just remember, aspheric optical designs can give better vision to some by adjusting for the normal light bouncing aberrations coming off an average cornea , but if your cornea is not average, then it may not give you noticeable vision changes.

My Review:

If you read my rave reviews about Dailies Total 1 back in 2013, you know what a big fan I am.  I honestly didn't think that my contact lens wearing experience would be matched by any new product. But in my personal wearing experience, MyDay was at least as good on comfort, and just a little better on clarity than Dailies Total 1.  The lens stayed comfortable well into my 16 hours of wear, and I never had to use moisturizing drops or manipulate the lens under my eyelids to rehydrate.  I found the lens material to feel very similar to Dailies Total 1, so if you are someone who had difficulty with removing Dailies Total 1 lenses, it is possible that you may have the same experience with MyDay. Both of these lenses have low modulus materials (meaning they are very flexible and bend to the shape they are touching) and very high lubricity -- your fingers will glide right over them if they are wet when you try to remove the lens.  You also won't be able to easily slide the lens around on your eye -- your fingers are more likely to slide on the lens surface than you are to move the lens around without the proper amount of force. If you are having difficulty with removal it is best to let your doctor know so they can help teach you the proper technique for removing these more "slippery" lenses. The real pro to this more lubricious lens texture is that on your eye, your eyelids will glide right over the lens surface too, meaning that you will have that fantastic "am I wearing a contact lens??" feeling.  

I tried to think of at least one potential con about the lens, and the only thing that really comes to mind is that the handling tint is really faint.  It will be a challenge to see the edges of this lens (especially if you have a high prescription!) to determine if the lens is inside out, and it will be hard to spot this lens if you drop it by mistake.

Because of the very low material modulus, the lens should properly fit a variety of corneal curvatures despite the steeper base curve.  Lower modulus materials drape and form easily to surrounding surfaces, meaning that even though the lens comes in only one base curve and diameter, it can potentially properly fit many different corneal shapes and curvatures.  Your doctor will carefully assess to make sure this lens is a proper fit for your cornea during your contact lens evaluation.  

Have you tried MyDay yet?  I'd love to hear your opinions and thoughts about this exciting new product!