Some cases
of ptosis are the result of a traumatic delivery, in which an infant is caught in the birth canal or in which an infant is damaged by the use of forceps during birth.
The root cause of all cases
of ptosis is a weak or damaged eyelid muscle.
However, a history of breast - feeding was not associated with a higher degree
of ptosis.
Pregnancy was seen to be a risk factor for the development of breast ptosis, and the degree
of ptosis was seen to worsen with the number of pregnancies.
Not exact matches
This old wives» tale has now been negated by research [v], which has shown that the main factors that contribute to breast
ptosis are: age, history
of significant (> 50 lb) weight loss, higher body mass index, larger bra cup size, number
of pregnancies and smoking history.
On the other hand, factors that do NOT contribute to breast
ptosis include: breastfeeding and lack
of participation in regular upper body exercise.
In fact, a 2008 study concluded that the risk
of breast
ptosis increases with each pregnancy, but has no correlation to breastfeeding.
Breastfeeding is often blamed for drooping breasts, but it's not breastfeeding itself that causes breast
ptosis: sagging is actually the result
of pregnancy and other influences.During pregnancy, your breasts undergo changes and grow larger to prepare for breastfeeding your baby.
The study showed associations between current bilateral PGA use and deepened upper eyelid sulci, hollowing
of the inferior periorbital fat pads, upper eyelid
ptosis with levator muscle dysfunction, and lower lid retraction.
Horner's syndrome (miosis,
ptosis, enophthalmos)
of the ipsilateral eye may be present with either middle or inner ear disease in dogs and cats, because the sympathetic trunk passes through the middle ear in close proximity to the petrosal bone.
Brow
Ptosis - Certain canine breeds have a very heavy brow which induces secondary entropion
of the upper eyelid.