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American Orthoptic Journal AbstractTo request a single copy of any journal article, contact us at: 608 263-0654 (voice), or journals@wwwtest.uwpress.wisc.edu (email). Articles will be photocopied and mailed within two business days. Please prepay with VISA or MasterCard. Articles up to 29 pages in length are priced at $15.00. Articles containing 30 or more pages are priced at $25.00. For article reprints in quantities of 25-500 please use our online reprint ordering system by clicking Reprint Orders.
Volume 49, 1999, p. 31-36 Optical Problems and Near Vision (Abstract) Optical problems related to near vision are caused by one of two factors. Some are related to the fact that near vision requires different accommodative effort than distance viewing. Other problems are related to the fact that near vision usually occurs in the downgaze reading position, and there are some clinical situations for which downgaze poses unique optical problems. This report presents ten specific optical problems associated with near vision. They include: 1) increased accommodative demands in myopes switching to contact lenses; 2) problems with bifocal contact lenses with high AC/A esotropia; 3) decompensation of accommodative esotropia with approaching presbyopia 4) the need for on-going cycloplegic refractions in former accommodative esotropes; 5) problems with monovision; 6) fixation switch diplopia/asthenopia; 7) monocular aphakia; 8) induced prism in downgaze from anisometropia; 9) vertically incomitant strabismus causing problems in presbyopes; 10) disadvantages of no-line bifocals with vertically incomitant strabismus. |
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