瞳距 (tóngjù): pupillary distance (PD)

Meanings

1 pupillary distance (PD)
2 interpupillary distance

Characters

瞳

Examples

配眼镜时需要测量瞳距。

Pèi yǎnjìng shí xūyào cèliáng tóngjù.

When fitting glasses you need to measure pupillary distance.

我的瞳距是六十二毫米。

Wǒ de tóngjù shì liùshí'èr háomǐ.

My pupillary distance is sixty-two millimeters.

Tips

usage

Standard term at the optician's. The lab abbreviation PD (from English 'pupillary distance') is also written directly on prescriptions. Adult range is roughly 54-74 mm.

Stroke Order

瞳 tóng

距 jù

Related Words

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commuting distance / distance from home to work

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braking distance (distance traveled from when brakes are applied until vehicle stops) / stopping distance

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distance / to be apart from; to be away from

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distance / to be apart from

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to close the distance (between people) / to bring closer (emotionally) / to build rapport

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to measure distance / ranging (rangefinding)

瞳孔 tóngkǒng #11,937

pupil (of the eye)

长距离 chángjùlí #34,142

long-distance / long-range

间距 jiānjù #33,856

spacing / gap / distance between objects / interval