Eugène Kalt (1861-1941) was a French ophthalmologist who developed the first known application of a
contact lensA contact lens is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye...
for the correction of
keratoconusKeratoconus , is a degenerative disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than its normal gradual curve....
. In 1888, he worked on a crude flat-fitting glass
scleral lensA scleral lens is a large type of contact lens that rests on the sclera and creates a tear-filled vault over the cornea. Scleral lenses are designed to treat a variety of eye conditions which do not respond to other forms of treatment.-Design:...
es designed to "compress the steep conical apex thereby correcting the condition". His first lenses were crafted from the bottoms of glass
test tubeA test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top, usually with a rounded U-shaped bottom...
s.
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Eugène Kalt (1861-1941) was a French ophthalmologist who developed the first known application of a
contact lensA contact lens is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye...
for the correction of
keratoconusKeratoconus , is a degenerative disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than its normal gradual curve....
. In 1888, he worked on a crude flat-fitting glass
scleral lensA scleral lens is a large type of contact lens that rests on the sclera and creates a tear-filled vault over the cornea. Scleral lenses are designed to treat a variety of eye conditions which do not respond to other forms of treatment.-Design:...
es designed to "compress the steep conical apex thereby correcting the condition". His first lenses were crafted from the bottoms of glass
test tubeA test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top, usually with a rounded U-shaped bottom...
s.
Kalt was born in
LandserLandser is a commune in the Haut-Rhin department in Alsace in north-eastern France.-References:*...
in the
AlsaceAlsace is the fourth-smallest of the 26 regions of France in land area , and the smallest in metropolitan France. It is also the sixth-most densely populated region in France , with 222 inhabitants per km²...
region of France.