How to Prevent Black Spot. With the right gardening habits in place, you can keep black spot at bay on your roses by: 1  Water in the Morning: This allows the moisture to evaporate from the leaves.  Avoid Watering Foliage: Especially if the weather is warm and humid, avoid getting the foliage wet when watering.
Droopy eyelids can also be caused by trauma, surgery, or by damage to the muscles that raise the eyelids or to the nerves that control these muscles. Tumors, neurological disorders, systemic diseases, and certain drugs have also been known to cause ptosis.
If severe or left untreated, the droopy eyelid can lead to other conditions such as amblyopia (lazy eye) or astigmatism. There are two types of ptosis: acquired and congenital. Congenital ptosis is present at birth and is usually due to the lack of development of eyelid muscles called levators.