ASTHENOPIA NOT DUE TO REFRACTIVE ERRORS.

Frequency of asthenopia and its association with refractive errors

Methods: In this cross-sectional practice-based study, the clinic records of 1109 school-aged children (mean age and standard deviation 14.39 ± 3.39 years) were analysed. The sample comprised 427 (38.5%) male and 682 (61.5%) female patients between the ages of 6 and 19 years. Refractive errors were classified into various types, and the association between these refractive types and symptoms in...

Refractive Errors & Refractive Surgery Preferred Practice Pattern®.

Management of refractive errors.

Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Australia Vision Cooperative Research Centre, Sydney, Australia The Fred Hollows Foundation New Zealand, Auckland, New Zealand The Fred Hollows Foundation, Sydney, Australia International Agency for Prevention of Blindness, Western Pacific Region, Melbourne, Australia International Counc...

Monocular diplopia due to spherocylindrical refractive errors (an American Ophthalmological Society thesis).

PURPOSE Ordinary spherocylindrical refractive errors have been recognized as a cause of monocular diplopia for over a century, yet explanation of this phenomenon using geometrical optics has remained problematic. This study tests the hypothesis that the diffraction theory treatment of refractive errors will provide a more satisfactory explanation of monocular diplopia. METHODS Diffraction the...

Refractive errors in preterm babies.

Fifty preterm neonates were followed up at the age of 6 months and 1 year. In addition to developmental assessment, a complete ophthalmological examination was done on both visits. The largest (62%) gestational age group was of 34-36 weeks. At 6 months, none of the infants had normal vision. At 1 year of age, 64% of the babies had normal vision while incidence of myopia and hypermetropia was 16...