Myasthenia gravis or Eye muscle weakness is a condition in which the lower edge of the upper eyelid is lower than normal or covers the pupil more than normal. It can be caused by many things, both from the eye muscles themselves or from abnormalities in the nerves that control the opening of the eye. It can occur in both genders and all ages.
Eye muscle weakness can be divid into two main types:
- Congenital Ptosis is present from birth and is usually cause by abnormalities in the development of the levator muscles, causing one or both eyelids to droop. Some children may have to look up or raise their eyebrows to look, which, if left uncorrected, can affect long-term vision development.
- Acquired Ptosis is more common in adults and is usually cause by degeneration of the tendons that attach the muscles to the eyelid เล่นเกมคาสิโน UFABET ทันสมัย ฝากถอนง่าย, neurological conditions such as Myasthenia Gravis, or the result of previous surgery/accidents such as double eyelid surgery or Lasik.
Later types of insight are more common in the age group of 35 years and older, especially in people who wear daily contact lenses for many years.
The severity of myasthenia gravis can be classified as follows:
- Severe: The eyelid droops so much that it obscures vision. Force from the eyebrows or head may be require to lift the eye. There may also be weakness in other muscles.
- Mild degree, slight drooping of the eyelid, still able to open the eye normally, and does not affect vision much.
- Severe level: The eye muscles are almost unable to function, resulting in the inability to open the eyes on their own, and may be associate with neurological disease that requires urgent treatment.
- Moderate: Drooping of the eyelid becomes more obvious. Blurred vision or double vision may begin to occur with prolonged use of the eyes.
Myasthenia gravis may sound like a minor problem, but it involves “muscle structure, nervous system, and lifestyle”, with several risk factors to watch out for.