title: Eye disorders in old people.
abstract: BACKGROUND
  Visual impairment is one of a major public health problem among elderly people.
  
  
  OBJECTIVE
  Aim of this study was determining the prevalence of visual impairment in median and old peoples in Qazvin (Iran).
  
  
  METHODS
  In this cross sectional study, with a simple random sampling, 446 patients older than 5o years who were referred to outpatient ophthalmology clinics at Avecina hospital of Qazvin (a province of Iran) in 2010 were enrolled. Participants first complete a questionnaire with 25 questions toward demographic and past medical history and then were examined by ophthalmologist. These examinations includes direct and indirect ophthalmoscopy, slit lamp examination, measurement of uncorrected visual acuity and visual acuity with current glasses, lensometery of the previous glasses, refraction with and without the use of cycloplegic and determining the best corrected visual acuity. All slit lamp examinations were performed by the same ophthalmologist. Data were analyzed with SPSS16 with use of Chi - Square test with Pvalue &lt;0.05.
  
  
  RESULTS
  In this study 446 patients were examined that 54.7% were male. Mean age of study population was 62+-9.3 years old. 96.4% of participants had refractory disorder. Prevalence of myopia, hyperopia and astigmatism were 33.6%, 45.9% and 16.8% respectively. Of patients 17.4% had diabetes. Of participants 28.9% had temporal headache, 37% red eye, 41.2% flashing, 27.3% and 28% had dryness and discharge of eye respectively. 31.1% of participants had eyelide problem, 4.7% Color Vision Deficiency (CVD) and 3.8% had family history of CVD. Of total 4.5% had glaucoma, 3.3% macular degeneration and 21.7% had hypertension. 0.6% of population had macular degeneration, 0.4% of population had glaucoma Of 892 eyes (446 individuals), 36.2% had visual acuity less than 7/10, 1.7% light perception (LP) and 0.22% no light perception (NLP) and 2.7% finger count.
  
  
  CONCLUSIONS
  Refractory errors, cataract and amblyopia were most important eye disorders in older people in Qazvin.
authors.affiliation: Qazvin University of Medical Sciences, Qazvin, Iran. mohammadkhalaj82@yahoo.com
authors.forename: Mohammad
authors.initials: M
authors.lastname: Khalaj
authors.forename: Ameneh
authors.initials: A
authors.lastname: Barikani
authors.forename: Hafez
authors.initials: H
authors.lastname: Ghasemi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003920:Diabetes Mellitus / Q000453:epidemiology*; D005260:Female; D020773:Headache Disorders / Q000453:epidemiology; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D014786:Vision Disorders / Q000145:classification / Q000453:epidemiology* / Q000209:etiology; D019987:Persons with Visual Disabilities / Q000706:statistics & numerical data*