Media type: E-Article Title: How dark is “dark”? Experimental methods in clinical research Contributor: Wilhelmus, Kirk R. imprint: Ovid Technologies (Wolters Kluwer Health), 2005 Published in: Journal of Cataract and Refractive Surgery Language: English DOI: 10.1016/j.jcrs.2005.12.019 ISSN: 0886-3350 Keywords: Sensory Systems ; Ophthalmology ; Surgery Origination: Footnote: