+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Use of horizontal prism to correct vertical fixation disparity



Use of horizontal prism to correct vertical fixation disparity



American Journal of Optometry and Physiological Optics 56(8): 504-508



By noting the direction of gaze in which the vertical phoria is largest, one can determine where binocular discomfort is likely to be greatest. Treatment of the discomfort is then based upon prescribing horizontal prism for the horizontal phoria. The recommended amount of horizontal prism is that amount which reduces the vertical fixation disparity to zero. Although the fixation disparity can change in different directions of gaze, in most instances, the prescribed amount of horizontal prism is determined in the primary position of gaze.

(PDF emailed within 0-6 h: $19.90)

Accession: 006878898

Download citation: RISBibTeXText

PMID: 543496

DOI: 10.1097/00006324-197908000-00004


Related references

Horizontal and vertical vergence training and its effect on vergences, fixation disparity curves, and prism adaptation: II. Vertical data. American Journal of Optometry and Physiological Optics 65(1): 8-13, 1988

Horizontal and vertical vergence training and its effects on vergences fixation disparity curves and prism adaptation. Investigative Ophthalmology & Visual Science 28(3 SUPPL): 310, 1987

Vertical fixation disparity correction: effect on the horizontal forced-vergence fixation disparity curve. American Journal of Optometry and Physiological Optics 64(9): 653-656, 1987

Clinical evaluation of vertical fixation disparity. Part IV. Slope and adaptation to vertical prism of vertical heterophoria patients. American Journal of Optometry and Physiological Optics 63(8): 662-667, 1986

Clinical evaluation of vertical fixation disparity. Part III. Adaptation to vertical prism. American Journal of Optometry and Physiological Optics 62(9): 585-590, 1985

Horizontal and vertical vergence training and its effect on vergences and fixation disparity curves: I. Horizontal data. American Journal of Optometry and Physiological Optics 65(1): 1-7, 1988

A comparative analysis of vertical and horizontal fixation disparity in sentence reading. Vision Research 110(Pt A): 118-127, 2016

The prism that aligns fixation disparity does not predict the self-selected prism. Ophthalmic & Physiological Optics 28(6): 550-557, 2009

Changes in the orientation of Listings plane following sustained vertical fusion in response to a prolonged prism-induced vertical disparity. IOVS 41(4): S417, March 15, 2000

Correlation sensitivity for horizontal disparity, vertical disparity and glass patterns. IOVS 39(4): S615, March 15, 1998

Vertical binocular disparity is encoded implicitly within a model neuronal population tuned to horizontal disparity and orientation. Plos Computational Biology 6(4): E1000754-E1000754, 2010

Vertical prism disparity in aircraft windshields. American Journal of Optometry and Physiological Optics 58(9): 740-745, 1981

Depth perception from vertical disparity, and interactions between vertical and horizontal disparities. IOVS 41(4): S236, March 15, 2000

Dynamics of fixation disparity and prism adaptation. American Journal of Optometry & Physiological Optics 59(10): 67P, 1982

The influence of rapid prism adaptation upon fixation disparity. Vision Research 19(7): 757-765, 1979