CORRELATION BETWEEN INTERPUPILLARY AND INNER-OUTER INTERCANTHAL DISTANCES IN INDIVIDUALS YOUNGER THAN 20

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ETEZAD RAZAVI M.; JALALIFAR S.

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Journal: Journal of Ophthalmic and Vision Research Year:2008 | Volume:3 | Issue:1 Page(s): 16-22

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Title

CORRELATION BETWEEN INTERPUPILLARY AND INNER-OUTER INTERCANTHAL DISTANCES IN INDIVIDUALS YOUNGER THAN 20

Author(s)

ETEZAD RAZAVI M. | JALALIFAR S. | Issue Writer Certificate

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Abstract

Purpose: To determine the correlation between interpupillary distance (IPD) and innerouter intercanthal distance (IOICD) and to find a regression equation for calculating IPD based on IOICD measurements.Methods: The study subjects were randomly selected from individuals aged 3 months to 20 years who were referred to our ophthalmology clinic, health care centers and children attending kindergartens. Participants were divided into 4 age categories: £3, 3-5, 5-12.5 and 12.5-20 years. IPD was measured by a PD meter (PD2, Oculus, Germany); other parameters including IOICD, nasal limbus to temporal limbus (NLTL), inner intercanthal distance (IICD) and outer intercanthal distance (OICD) were measured using a translucent plastic ruler. Results: The study included 254 female (60.6%) and 165 male (39.4%) subjects with mean age of 87.7±73.2 (range 3-240) months. Significant correlation was observed between IOICD and IPD in the 3-5 yr and 12.5-20 yr age groups. In the £3 and 5-12.5 year age groups, NLTL had the best correlation with IPD. The regression equations for calculating IPD according to IOICD were as follows. In male subjects, near IPD= 0.941×IOICD (r²= 0.98, P<0.001) and for female subjects, near IPD= 0.948×IOICD (r²= 0.98, P<0.001).Conclusion: IPD and IOICD measurements are strongly and positively correlated; IOICD measurements are simpler to obtain and may be used to calculate IPD readings which are more difficult to measure by usual methods in children.

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APA: Copy

ETEZAD RAZAVI, M., & JALALIFAR, S.. (2008). CORRELATION BETWEEN INTERPUPILLARY AND INNER-OUTER INTERCANTHAL DISTANCES IN INDIVIDUALS YOUNGER THAN 20. JOURNAL OF OPHTHALMIC AND VISION RESEARCH, 3(1), 16-22. SID. https://sid.ir/paper/311297/en

Vancouver: Copy

ETEZAD RAZAVI M., JALALIFAR S.. CORRELATION BETWEEN INTERPUPILLARY AND INNER-OUTER INTERCANTHAL DISTANCES IN INDIVIDUALS YOUNGER THAN 20. JOURNAL OF OPHTHALMIC AND VISION RESEARCH[Internet]. 2008;3(1):16-22. Available from: https://sid.ir/paper/311297/en

IEEE: Copy

M. ETEZAD RAZAVI, and S. JALALIFAR, “CORRELATION BETWEEN INTERPUPILLARY AND INNER-OUTER INTERCANTHAL DISTANCES IN INDIVIDUALS YOUNGER THAN 20,” JOURNAL OF OPHTHALMIC AND VISION RESEARCH, vol. 3, no. 1, pp. 16–22, 2008, [Online]. Available: https://sid.ir/paper/311297/en

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