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KMID : 1011420090140040059
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Journal of Korean Ophthalmic Optics Society
2009 Volume.14 No. 4 p.59 ~ p.63
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Comparison of Relative Accommodation, Accommodative Facility, and Addition Based on Occupation of Initial Presbyopia
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Kim Hyun-Mok
Son Jeong-Sik
Lee Won-Jin
Lee Jae-Yoon
Cho Hyun-Gug
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Abstract
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Purpose: This study was designed to compare the relative accommodation, the accommodative facility, and the addition whose 40’s initial presbyopia divided into five occupations (driver, official worker, housewife, field worker, teacher).
Methods: We measured the values of near point convergence (NPC), positive relative accommodation (PRA), negative relative accommodation (NRA), accommodative facility, and addition.
Results: Official worker group had lower PRA, higher NRA, and lower accommodative facility compared with them of the other groups. The average of addition was as follows: official worker>driver>field worker>housewife> teacher.
Conclusions: Because the difference of working environment based on occupation affects the accommodative functions and addition, it is important to consider the patient’s occupation when opticians measure the addition for near vision of initial presbyopia.
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KEYWORD
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Initial Presbyopia, Near Convergence Point, Accommodative Facility, Relative Accommodation, Addition
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