<p>USA TODAY's Ed Baig reviews the 3Dfit iPad app from Glasses.com.</p><p>USA TODAY columnist Ed Baig demonstrates the Glasses.com 3Dfit iPad app.(Photo: Ed Baig, USA TODAY)Story Highlights3Dfit iPad app lets you try on glasses on 3D model of your faceShop for countless brands and stylesAdlens glasses lets you turn on dial to change lens power.</p><p>SHARE 113 CONNECTEMAILMORE</p><p>You try on several pairs of eyeglasses to see how the frames look on you from multiple angles. Only you're not actually wearing physical glasses but rather examining a lifelike 3D model of your own head on the iPad.</p><p><a href="http://www.usatoday.com/story/tech/columnist/baig/2013/07/16/interactive-ways-to-buy-eyeglasses/2520339/">Keep reading...</a></p>