Zenni Optical offers Anti-Reflective Coating for free with orders of $19.99 or more via coupon code "RMNAR". (You'll have to select anti-reflective coating while configuring your glasses.) That's a $5 savings and the first such deal we've seen from Zenni Optical. Shipping starts at $4.95.
39DollarGlasses takes $15 or 15% off each purchase of glasses via coupon code "PRES15". (The highest discount will apply.) That's tied with last spring's mention as the best dollar-off discount we've seen from 39DollarGlasses in over a year. Shipping starts at $4.95 or is free on orders of $99 or more. Deal ends February 28.
Tanga offers the iRays Lighted Reading Glasses 2-Pack in Black or Tortoise Shell for $13.99 with free shipping. That's $25 under the lowest total price we could find for a similar 2-pack elsewhere. They're available in strengths from 1.5 to 3, although not in all color/strength combinations. A microfibre case is included.