Comparison of the Effect of Different Types of Experimental Anisometropia on Stereopsis Measured with Titmus, Randot and TNO Stereotests

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Nabie Reza; ANDALIB DIMA; KHOJASTEH HASAN; Aslanzadeh Safieh A.

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Journal Paper

Paper Information

Journal: Journal of Ophthalmic and Vision Research Year:2019 | Volume:14 | Issue:1 Page(s): 48-51

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Title

Comparison of the Effect of Different Types of Experimental Anisometropia on Stereopsis Measured with Titmus, Randot and TNO Stereotests

Author(s)

Nabie Reza | ANDALIB DIMA | KHOJASTEH HASAN | Aslanzadeh Safieh A. | Issue Writer Certificate

Keywords

Anisometropia

Monovision

Stereopsis

Abstract

Purpose: To assess the effect of experimental Anisometropia and Monovision on Stereopsis using the Titmus, Randot, and TNO stereoacuity tests. Methods: Sixty adult volunteers were enrolled in the present study. Four different types of Anisometropia— myopia, hyperopia, and astigmatism (both 90° and 45° )— were induced by placing trial lenses over the dominant eye (from 3 to 1 D). Stereoacuity was measured using the Titmus, Randot, and TNO tests. Results: In all the Anisometropia types, Stereopsis deteriorated with increase in Anisometropia in the three stereoacuity tests performed (P < 0. 001). The largest decrease in Stereopsis was attributed to 3 D myopic Anisometropia— 6. 51 ± 2. 10, 6. 59 ± 2. 35, and 7. 36 ± 1. 89 arc seconds in Titmus circles, Randot circles, and TNO, respectively. Minimal change in Stereopsis was observed in 1 D astigmatism of 45° . Conclusion: Any type of Anisometropia may reduce stereoacuity; this reduction is most noticeable with myopic Anisometropia, especially in the TNO test, probably due to the lack of monocular cues.

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APA: Copy

Nabie, Reza, ANDALIB, DIMA, KHOJASTEH, HASAN, & Aslanzadeh, Safieh A.. (2019). Comparison of the Effect of Different Types of Experimental Anisometropia on Stereopsis Measured with Titmus, Randot and TNO Stereotests. JOURNAL OF OPHTHALMIC AND VISION RESEARCH, 14(1), 48-51. SID. https://sid.ir/paper/311744/en

Vancouver: Copy

Nabie Reza, ANDALIB DIMA, KHOJASTEH HASAN, Aslanzadeh Safieh A.. Comparison of the Effect of Different Types of Experimental Anisometropia on Stereopsis Measured with Titmus, Randot and TNO Stereotests. JOURNAL OF OPHTHALMIC AND VISION RESEARCH[Internet]. 2019;14(1):48-51. Available from: https://sid.ir/paper/311744/en

IEEE: Copy

Reza Nabie, DIMA ANDALIB, HASAN KHOJASTEH, and Safieh A. Aslanzadeh, “Comparison of the Effect of Different Types of Experimental Anisometropia on Stereopsis Measured with Titmus, Randot and TNO Stereotests,” JOURNAL OF OPHTHALMIC AND VISION RESEARCH, vol. 14, no. 1, pp. 48–51, 2019, [Online]. Available: https://sid.ir/paper/311744/en

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