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Normal interpupillary distance values in an Iranian population
Hamid Fesharaki1, Leila Rezaei, Fereidoun Farrahi
1Eye Research Center, Feiz Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.
Journal of Ophthalmic & Vision Research
|January 19, 2013
Summary
Interpupillary distance (IPD) norms were established for an Iranian population. Mean IPD was greater in men than women and increased with age, suggesting non-skeletal growth factors influence IPD.
Area of Science:
- Ophthalmology
- Anthropometry
- Population Health
Background:
- Accurate interpupillary distance (IPD) measurements are crucial for optical device fitting and understanding facial anthropometry.
- Existing IPD data may not fully represent diverse ethnic populations, necessitating specific population studies.
Purpose of the Study:
- To establish normative interpupillary distance (IPD) values across various age groups within the Iranian population.
- To investigate age- and sex-related variations in IPD in this cohort.
Main Methods:
- A cross-sectional study involving 1,500 outpatients with refractive errors at Farabi Eye Hospital, Iran.
- Interpupillary distance (IPD) and refractive errors were measured using an autorefractometer (Topcon RMA-3000) for distance vision.
Main Results:
- The mean IPD for adult women was 61.1±3.5 mm and for adult men was 63.6±3.9 mm (p<0.001).
- Significant increases in mean IPD were observed with age: 4.8 mm (2nd decade), 1.7 mm (3rd decade), and 0.6 mm (4th-5th decades).
Conclusions:
- The study provides essential normative IPD data for the Iranian population.
- The observed IPD increase beyond age 30 suggests that factors beyond skeletal maturation influence interpupillary distance.
