The relative importance of astigmatism in the production of asthenopia: second paper

Collection:: Medicine in the Americas, 1610-1920
Author(s):: Risley, Samuel D. (Samuel Doty), 1845-1920 author
Publication:: [St. Louis?] : [publisher not identified], [1893?]
Language(s):: English
Format:: Text
Subject(s):: Astigmatism -- therapy
Asthenopia -- etiology
Copyright:: The National Library of Medicine believes this item to be in the public domain. (More information)
Extent:: pages 11-14
NLM Unique ID:: 101751447 (See catalog record)
OCLC no.:: 1110731336
Permanent Link:: http://resource.nlm.nih.gov/101751447

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