title: Prevalence of ocular surface disease symptoms and risk factors in group of university students in Monterrey, Mexico.
abstract: BACKGROUND
  The objective of this study was to determine the prevalence of symptoms of ocular surface disease and its relationship with associated risk factors in students from the University of Monterrey using Ocular Surface Disease (OSDI) questionnaire.
  
  
  METHODS
  A cross-sectional survey was conducted between October and December 2014 to assess the prevalence and risk factors for ocular surface disease in a group of students from Universidad de Monterrey in Monterrey, Mexico. The severity of the disease was measured via the Ocular Surface Disease Index (OSDI) questionnaire.
  
  
  RESULTS
  The OSDI average value was 26.85 ± 20.79 points, with 70.4% of students (579) had OSDI score higher than 12 points. Women had ocular surface disease 1.63 times more than men (OR 1.29, 95% CI 1.13,1.48). Students who used ophthalmic drops have an OR 2.00 (95% CI 1.65,2.40), and students who smoke have an OR 1.24 (95% CI 1.06,1.46). Use of contact lenses, hours in front of computer or history of refractive surgery has low-estimated effect on the probability of presenting an ocular disease.
  
  
  CONCLUSIONS
  University students have a prevalence of 70.4% of ocular surface disease (OSD). OSD was associated with gender (women have a higher prevalence), smoking and the use of eye drops. A program to modify these risk factors to reduce the prevalence is needed.
authors.affiliation: Dirección de Ciencias Médicas de la División de Ciencias de la Salud, Universidad de Monterrey, Monterrey, Nuevo León, México. manuel@drgarza.mx.|Fundación Destellos de Luz IBP, San Pedro Garza García, Nuevo León, México. manuel@drgarza.mx.|, Hidalgo # 2425, consultorio 706, Colonia Obispado, Monterrey, Nuevo León, México. manuel@drgarza.mx.
authors.forename: Manuel
authors.initials: M
authors.lastname: Garza-León
authors.affiliation: Department of Statistical Science, University College London, London, WC1E6BT, UK.
authors.forename: Miguel
authors.initials: M
authors.lastname: Valencia-Garza
authors.affiliation: Dirección de Ciencias Médicas de la División de Ciencias de la Salud, Universidad de Monterrey, Monterrey, Nuevo León, México.
authors.forename: Bernardo
authors.initials: B
authors.lastname: Martínez-Leal
authors.affiliation: Dirección de Ciencias Médicas de la División de Ciencias de la Salud, Universidad de Monterrey, Monterrey, Nuevo León, México.
authors.forename: Pablo
authors.initials: P
authors.lastname: Villarreal-Peña
authors.affiliation: Dirección de Ciencias Médicas de la División de Ciencias de la Salud, Universidad de Monterrey, Monterrey, Nuevo León, México.
authors.forename: Hernán Gerardo
authors.initials: HG
authors.lastname: Marcos-Abdala
authors.affiliation: Dirección de Ciencias Médicas de la División de Ciencias de la Salud, Universidad de Monterrey, Monterrey, Nuevo León, México.
authors.forename: Ana Lucía
authors.initials: AL
authors.lastname: Cortéz-Guajardo
authors.affiliation: Dirección de Ciencias Médicas de la División de Ciencias de la Salud, Universidad de Monterrey, Monterrey, Nuevo León, México.
authors.forename: Arturo
authors.initials: A
authors.lastname: Jasso-Banda
keywords: College students; Dry eye; Mexico; OSDI questionnaire; Ocular surface disease; Prevalence; Risk factors; University students