First, they submerged the samples in a hydrogel solution containing small compounds that behave as liquid until they link up into polymer chains that absorb water and congeal into a gel. These ...

Microlenses applied to eyeglasses can help reduce growth-related worsening of nearsightedness (myopia), preventing potential ...

"The laser beam can be positioned with great accuracy on surfaces, so we can produce significantly smaller microlenses than is possible with previously existing methods," commented Thomas Höche head ...

In laser swelling, a focused infrared laser is beamed at plastics used for eyeglasses. The laser, which functions as a local heat source, excites water molecules present inside the polymer.