PFL, Palpebral fissure length: the horizontal length of the eye
Eye canthuses: The corners of the eye where upper and lower eyelid meet
Medial Canthus: The inner canthus of the eye. An attractive medial canthus is long and tilted downward
Canthal tilt: Orientation of the line which intersects medial and lateral canthus.
PCT: Short for positive canthal Tilt
NCT: Short for Negative Canthal tilt
Canthoplasty: Any of several procedures for changing the configuration or position of the lateral canthus
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https://medical-dictionary.thefreedictionary.com/canthoplasty)
Canthopexy: A surgical procedure designed to tighten the lower eyelid by shortening supporting structures at the lateral canthus
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https://medical-dictionary.thefreedictionary.com/canthopexy)
Eyelid retraction: an eyelid condition in which sclera is visible above or below the iris
Ptosis: a medical condition in which the upper eyelid is droppy. It causes a "tired" eye expression. ptosis can also be caused by a number of different things, such as disease that impairs the nerves, diabetes, injury, tumors, inflammation, or aneurysms. Congenital ptosis may be caused by a problem with nerve innervation or a weak muscle.
(
https://medical-dictionary.thefreedictionary.com/ptosis)
lower orbital rim: the bone right below the eyeball
negative orbital vector: a recessed lower infraorbital rim bone
Under eye support: refers to the prominence of the lower orbital rim. An eye are with bad "under eye support" usually has an oblique fold originating from the medial canthus. This fold is usually called tear through.
Sunken area under the eyes: The term used by plastic surgeons to refer to bad under eye support
Infraorbital rim implants: cosmetic implants inserted under the eye for the purpose of improving under eye support. They are usually combined with canthoplasty to turn "Prey eyes" into "Hunter eyes"
Lower Blepharoplasty: Another surgery aimed to reduce signs of aging: it removes under eye bags but it may cause a sunken area under the eyes
Eye bags: swollen bags under the eye, often associated with aging. Cosmetic doctors often recommend fixing them through a lower blepharoplasty.
>picrel shows where the pfl/canthusus/eye fat pads/orbital/lower orbital rim/canthal tilt lies on the surface>types of canthal tilts>types of orbital vectors>sunken eyes