title: Simple and inexpensive software designed for the evaluation of color.
abstract: OBJECTIVE
  To report on new software that was specially designed to evaluate color.
  
  
  METHODS
  Software development and observational case report. Each pixel on a computer screen is composed of three colors: red, green, and blue (RGB). Our software analyzes the intensity of each RGB component in a specific area chosen by the user. To test our software, we evaluated the color level of the irises of a subject, which became darker as a side effect of Xalatan (latanoprost; Pharmacia Corporation, Peapack, New Jersey) eyedrops.
  
  
  RESULTS
  We successfully expressed the level of the color of the iris by number.
  
  
  CONCLUSIONS
  This software measures the color of a lesion and thereby provides an objective evaluation of color. The software we developed is downloadable, without cost, from http://www.isao.com.
authors.affiliation: Department of Ophthalmology, Shizuoka Red Cross Hospital, Shizuoka, Japan. otaka@isao.com
authors.forename: Isao
authors.initials: I
authors.lastname: Otaka
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Kumagai
authors.forename: Yoko
authors.initials: Y
authors.lastname: Inagaki
authors.forename: Masaru
authors.initials: M
authors.lastname: Shimoyama
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Saegusa
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hara
mesh_terms: D000959:Antihypertensive Agents / Q000009:adverse effects*; D005127:Eye Color; D006801:Humans; D007498:Iris / Q000187:drug effects / Q000473:pathology*; D007499:Iris Diseases / Q000139:chemically induced / Q000175:diagnosis*; D000077338:Latanoprost; D010859:Pigmentation Disorders / Q000139:chemically induced / Q000175:diagnosis*; D011461:Prostaglandins F, Synthetic / Q000009:adverse effects*; D012985:Software Design
chemical_list: D000959:Antihypertensive Agents; D011461:Prostaglandins F, Synthetic; D000077338:Latanoprost