Guillermo Iribarren | Search PubMed

PubMed2002

Family history and reading habits in adult-onset myopia.

PURPOSE: A retrospective study was developed to evaluate risk factors in adult-onset myopia. METHODS: Subjects included were 25 to 35 years old. There were 116 non-myopic subjects in the control group and 66 myopic subjects with first lens prescription at age 17 or later. Subjects received a questionnaire about academic achievement, daily hours of reading during years of study, and family history of myopia. RESULTS: The level of academic achievement was similar for myopic and non-myopic groups in this sample. Myopia was associated with family history (chi(2) = 6.131, p </= 0.013) and with daily hours of reading during years of study (chi(2) = 3.904, p </= 0.048). According to multiple logistic regression analysis, the correlation of myopia with family history adjusted for daily hours of reading remained significant (p </= 0.005), whereas the correlation with daily hours of reading adjusted for family history was not significant (p </= 0.061). CONCLUSIONS: After multivariate analysis, adult-onset myopia was significantly associated only with family history of myopia.

Adult↗

PubMed2002

[Visual function study in work with computer].

This investigation searched for the relationship between amount of nearwork, asthenopic symptoms and visual function, in a group of office workers engaged in telemarketing. Phoria, monocular accommodative facility with +/- 2 lens flippers and near point of convergence were measured in 100 office workers (mean age 21 +/- 2.6 years) whose uncorrected visual acuity was 20/30 or better. Daily hours of reading hard-copy and of computer use, and the level of asthenopic symptoms, were measured using a questionnaire. In this sample, telemarketers were involved 5.84 +/- 2.02 daily hours in computer use, and 2.87 +/- 2.13 daily hours in reading. The following asthenopic symptoms were present twice or more times in a week: headaches 16%, pain in the eyes 17%, red eyes 18%, blurred vision 10%, double vision 3%, burning eyes 19% and watery eyes 19%. An association was found between the amount of hours using computers and red eyes (chi 2 = 4.4, p = 0.0359) or blurred vision (chi 2 = 8.35, p = 0.0038). And also between deficit of convergence and headaches (chi 2 = 4.3313, p = 0.0374) or red eyes (chi 2 = 3.6416, p = 0.0564). No other associations could be found between the accommodative facility test results, the near point phoria, and the amount of nearwork or the asthenopic symptoms. In conclusion, computer use in telemarketing is associated with few asthenopic symptoms. Near point of convergence should be routinely measured, as it is associated with some asthenopic symptoms.

Accommodation, Ocular↗