Yong-Moo Lim
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Type of contact lens: Rigid Gas Permeable Contact Lenses are made of rigid, water-less plastic combined with gas-permeable materials that allows more oxygen than hard lenses do, to pass through and reach the cornea. - https://goo.gl/ZeVyXe

Type of contact lens: Rigid Gas Permeable Contact Lenses are made of rigid, water-less plastic combined with gas-permeable materials that allows more oxygen than hard lenses do, to pass through and reach the cornea. - https://goo.gl/ZeVyXe

Type of contact lens: Hybrid Contact Lenses is made up of rigid gas permeable materials in the center and surrounded with soft lens material as the outer ring.  This creates a rigid center but soft surrounding skirt for greater wearing comfort. - https://goo.gl/ZeVyXe

Type of contact lens: Hybrid Contact Lenses is made up of rigid gas permeable materials in the center and surrounded with soft lens material as the outer ring. This creates a rigid center but soft surrounding skirt for greater wearing comfort. - https://goo.gl/ZeVyXe

How toric lens work - ImproveEyesightHQ.com

How toric lens work - ImproveEyesightHQ.com

Magnifying glass. Sometimes the circle design is static and doesn't feature any movement at all as is the case to this instrament.

Magnifying glass. Sometimes the circle design is static and doesn't feature any movement at all as is the case to this instrament.

Mesopotamian Lapis Lazuli, Limestone and Black Stone Eye Inlay, SUMER Circa 2500BC                  From a composite figure, the thick lapis lazuli lid naturalistically carved, tapering at the inner canthus and outer edge, bevelled on the interior to conform to the white stone sclera, the sclera drilled to receive the black stone pupil.

Mesopotamian Lapis Lazuli, Limestone and Black Stone Eye Inlay, SUMER Circa 2500BC From a composite figure, the thick lapis lazuli lid naturalistically carved, tapering at the inner canthus and outer edge, bevelled on the interior to conform to the white stone sclera, the sclera drilled to receive the black stone pupil.

1834 George Richards Elkington patented two developments in one go under the heading An Improvement or improvements in the construction, making or manufacturing of spectacles (Patent 6692). This involved firstly an angled joint resulting in a tilted forward frame. Secondly it introduced the pantoscopic frame with a flattened 'pantoscopic' rim to allow distance viewing over the top of reading lenses. This was the ancestor of the twentieth century panto-round-oval (PRO) eye shape.

1834 George Richards Elkington patented two developments in one go under the heading An Improvement or improvements in the construction, making or manufacturing of spectacles (Patent 6692). This involved firstly an angled joint resulting in a tilted forward frame. Secondly it introduced the pantoscopic frame with a flattened 'pantoscopic' rim to allow distance viewing over the top of reading lenses. This was the ancestor of the twentieth century panto-round-oval (PRO) eye shape.

Chart of Heymann Collection Discovered at the Musée National de la Renaissance (The Eyeglass Cases, Part 1)

Chart of Heymann Collection Discovered at the Musée National de la Renaissance (The Eyeglass Cases, Part 1)

Chart of Heymann Collection Discovered at the Musée National de la Renaissance (The Eyeglass Cases, Part 1)

Chart of Heymann Collection Discovered at the Musée National de la Renaissance (The Eyeglass Cases, Part 1)

James Bond-like telescopic contact lens lets you zoom in on the world

James Bond-like telescopic contact lens lets you zoom in on the world

Google's "smart contact lenses" could help diabetics monitor blood sugar levels

Google's "smart contact lenses" could help diabetics monitor blood sugar levels