U.S. Supreme Court
McNaughton v. Johnson, 242 U.S. 344 (1917)
McNaughton v. Johnson
Argued December 12, 1916
Decided January 8, 1917
242 U.S. 344
The practice of fitting glasses to the human eye and treating ocular inflammation without the use of drugs or surgery is subject to supervision and regulation under the state police power. chanroblesvirtualawlibrary
No discrimination violative of the equal protection clause of the Fourteenth Amendment is deducible from the fact that a state law (Laws of California, 1913, c. 598) requiring persons treating inflammation of the eye and fitting glasses without the use of drugs to be licensed under the name of "optometrists" and subjecting their practice to regulation excepts persons who employ drugs in their practice, it appearing that the latter, through another statute, are subject to similar supervision and regulation under another name.
233 F.3d 4 affirmed.
The case is stated in the opinion.