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2. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   History Origins and first functional prototypes Artist's impression of Leonardo's method for neutralizing the refractive power of the cornea. Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D, wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a ...

3. National Eye Institute - Wikipedia

   en.wikipedia.org/wiki/National_Eye_Institute

   NEI-supported research has contributed important knowledge about the cause, progression, and treatment of many eye diseases. Some notable examples are described below. Age-related macular degeneration. AMD typically happens when aging damages the macula. It is a leading cause of vision loss for older adults.

4. Cataract surgery - Wikipedia

   en.wikipedia.org/wiki/Cataract_surgery

   The lens is implanted in the eye's lens capsule, where the contractions of the ciliary body, which would focus the eye with the natural lens, are used to focus the implant, instead. IOLs used in correcting astigmatism have different curvature on two orthogonal axes, as on the surface of a torus: for this reason, they are called toric lenses.

5. How to budget with the 50/30/20 rule: A simple, effective ...

   www.aol.com/finance/50-30-20-budgeting-rule...

   Say you earn an income of $2,000 a month. Following the 50/30/20 rule would mean allocating $1,000 to needs, $600 to wants and $400 to savings or high-interest debt. But if your monthly rent and ...

6. Save That Dough: These are the Best 65-Inch TVs Under $500 in ...

   www.aol.com/lifestyle/calling-best-65-inch-tv...

   The Best 65-Inch TVs Under $500 at a Glance. 1. Best Overall: Hisense 65-inch A6H ULED ($419.99 at Amazon) 2. Runner Up: Insignia 65-inch F50 Fire TV ($279.99 at Amazon) 3. Best Google TV: TCL 65 ...

7. Mystery fundraising firm takes in millions from the Trump ...

   www.aol.com/news/mystery-fundraising-firm-takes...

   The joint fundraising committee has spent nearly $2.8 million with Launchpad Strategies, according to campaign finance records current through April. Little is known about Launchpad Strategies LLC ...