Causes of droopy eyelids 1. Eye trauma You may accidentally injure or weaken the levator muscle. This can happen if someone or something hits your eye. Years of wearing contact lenses or rubbing your eyes a lot can also cause this condition. Surgery may help. 2. Eye surgery After cataract, glaucoma surgery, your eyelids may droop. It is thought that the tools used to hold your eyelids back during surgery may stretch or damage the eye muscles. If your condition does not improve after six months, consult your doctor. 3. myasthenia gravis This is when your immune system mistakenly attacks and weakens signals between the nerves and muscles, which include those that control the eyelids, face, throat and jaw. medications or surgery may help your muscles work better. 4. Horner syndrome This is when damage to certain nerve pathways causes the eyelids to droop. The pupils of the affected eyes may be smaller, and parts of the face may not sweat. Some people are born with Horner’s syndrome. However, non-cancerous (benign) or cancerous tumors (such as tumors in the brain, head or lungs) can also damage these nerves, and further tests are done to clarify. 5. Severe headaches If you have migraines or problems with the trigeminal nerve, you may have symptoms of Horner’s syndrome. 6. Eyelid tumor Your doctor may call this mechanical ptosis, meaning something is pressing on your eyelids. If you have an inherited condition called neurofibromatosis type 1 (NF1), a tumor may grow on your eyelid. It is not usually cancerous, but you may need surgery or radiation therapy to treat it. 7. Eye infections Red eye (conjunctivitis) or wheals may make your eyes swell. After healing, the eyelid may return to normal. This may take 1-2 weeks or longer. 8. Stroke If a blood vessel breaks or is blocked by a blood clot, your brain will not get enough oxygen and nutrients. This can lead to a stroke and may cause the side of your face (including your eyelids) to droop. 9. Brain hemorrhage A brain aneurysm is a weak part of a blood vessel that can rupture and cause a hemorrhagic stroke. Tell your doctor if you have severe pain in your head or eyes, changes in vision or weakness and numbness on one side of your body. 10, muscle problems Droopy eyelids can be a sign of oculopharyngeal muscle dystrophy, a disease of the muscles of the eyes and throat. 11. Diabetes Over time, high blood sugar can damage the blood vessels and nerves in and around the eyes, which may double as droopy eyelids. When you control diabetes, symptoms will sometimes get better. 12, Botox Botulinum toxin (botulinum toxin) will paralyze your muscles, just like the muscles that cause wrinkles, and the toxin may enter the muscles that control the upper eyelids