T
TheEndHasNoEnd
No avi halo
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To preface, a good ipd and es ratio is needed for facial harmony, this thread is not an attempt to debunk that.
Many people here cite that wide set eyes are dimorphic, citing that men have wider ipds than women on average, such as shown:
But the actual reason for this is that men simply have bigger skulls than women, which would correlate with a wider ipd. What people do seem to overlook though is the ipd RELATIVE to the bizygo (ie. the ES ratio). Ipd is as good of an example to dimorphism as height is, there can be a woman taller than a man but the man will still have more masculine looking face, bigger hands, feet, skull, deeper voice, wider shoulders, etc. Let's look at bizygomatic width values:
If we were to take the 50th percentile of both bizygo and ipd and calculate it to ES ratio for both genders, we get that males have an average ES ratio of .4475 and females .4626. Now let's say we match the female bizygo to the male 50th percentile bizygo, that would mean matching it to the 95th percentile female bizygo. To calculate the corresponding es ratio of the female bizygo, we must look at the 95th percentile female ipd. As it turns out, a 14.3cm bizygo on a female matches with a 67.5mm ipd, the same bizygo on a male matches with a lower ipd of 64mm.
TL;DR: The wider the spaced eyes relative to the skull, the less dimorphic it is
Many people here cite that wide set eyes are dimorphic, citing that men have wider ipds than women on average, such as shown:
But the actual reason for this is that men simply have bigger skulls than women, which would correlate with a wider ipd. What people do seem to overlook though is the ipd RELATIVE to the bizygo (ie. the ES ratio). Ipd is as good of an example to dimorphism as height is, there can be a woman taller than a man but the man will still have more masculine looking face, bigger hands, feet, skull, deeper voice, wider shoulders, etc. Let's look at bizygomatic width values:
If we were to take the 50th percentile of both bizygo and ipd and calculate it to ES ratio for both genders, we get that males have an average ES ratio of .4475 and females .4626. Now let's say we match the female bizygo to the male 50th percentile bizygo, that would mean matching it to the 95th percentile female bizygo. To calculate the corresponding es ratio of the female bizygo, we must look at the 95th percentile female ipd. As it turns out, a 14.3cm bizygo on a female matches with a 67.5mm ipd, the same bizygo on a male matches with a lower ipd of 64mm.
TL;DR: The wider the spaced eyes relative to the skull, the less dimorphic it is
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