Eugène Jean Baptiste Kalt (24 February 1861, in
Landser, Haut-Rhin
Landser is a commune in the Haut-Rhin department in Alsace in north-eastern France.
See also
* Communes of the Haut-Rhin département
The following is a list of the 366 communes of the French department of Haut-Rhin.
The communes cooperate ...
– 9 May 1941) was a French
ophthalmologist
Ophthalmology ( ) is a surgery, surgical subspecialty within medicine that deals with the diagnosis and treatment of eye disorders.
An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Followin ...
who developed the first known application of a
contact lens
Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision or for cosmetic ...
for the correction of
keratoconus. In 1888, he worked on a crude flat-fitting glass
scleral lens
A scleral lens, also known as a scleral contact lens, is a large contact lens that rests on the sclera and creates a tears, tear-filled vault over the cornea. Scleral lenses are designed to treat a variety of eye conditions, many of which do not ...
es designed to "compress the steep conical apex thereby correcting the condition". His first lenses were crafted from the bottoms of glass
test tube
A 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 and closed at the bottom.
Test tubes are usually placed in s ...
s.
Kalt was born in
Landser in the
Alsace
Alsace (, ; ; Low Alemannic German/ gsw-FR, Elsàss ; german: Elsass ; la, Alsatia) is a cultural region and a territorial collectivity in eastern France, on the west bank of the upper Rhine next to Germany and Switzerland. In 2020, it had ...
region of France.
See also
*
Orthokeratology
Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVS ...
References
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External links
*
1861 births
1941 deaths
People from Haut-Rhin
French ophthalmologists
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