Blue Rays Glasses Means Blue Light Blocking Glasses. Blue Light Is Harmful For Our Eyes And Its Comes From All Type Of  Digital Devices Like Computer, Laptop, Mobile, Tv Etc. This Blue Rays Glasses Blocks All Type Of Harmful Rays And Protect Our Eyes

Anti Reflective Or Anti glare Glass protect Against Light Distraction When you Drive At Night. Its Reduce Light Distraction and Eliminate Unnecessary Reflection, so you have clear vision on the laptop, in the classroom, and Any Where. It is Also Useful For Photography, Your Eyes Seen Clear In Photo. 

In Bifocal Glasses There Are Two Type Of Numbers 1) Distance Number 2) Near number. Upper Side Set Distance number And Lower Side Near Number. There Are Clearly Seen Two Part In Glasses. Its Suits For Those Who Have Both Number Number. 

No Need To More Explanation About It. Reading Glasses Use For Near Reading. Its Used Only For Near Reading Means Not More Than 15 Inches. Not For Distance Vision Means You Cant See Tv Or Nor Drive With This Glass 

Progressive Glasses Is Similar To Bifocal Glasses. There Are Two Number In Bifocal Glasses But In Progressive There Are One More Number Included, Upper Side Set Distance number , Middle Side Intermediate Number  And Lower Side Near Number. There Are No Any Line Or Part Seen In Glasses. Its Looks Like Single Glasses. Its Suits For Those Who Have Computer Work.

1). In Bifocal Glasses There Are Two Numbers, 1) Distance 2) Near, But In Progressive Glasses There Are Three Numbers 1) Distance 2) Intermediate ( For Computer) 3) Near.

2). Bifocal Glasses seems in Two Parts, Means We Clearly Seems Two Part In Glasses, But in Progressive Its Looks Like Single Glasses, There Are No Any Part Seems

3) Progressive Glasses Easy To Adjust Than Bifocal Glasses