Eye surgery on PEX patients can be subject to medical complications if the fibers which hold the lens have become weakened because of a buildup from the flakes; if the lens-holding fibers have weakened, then the lens may become loose, and complications from eye surgery may result. In such cases, it is recommended that surgeons act quickly to repair the phacodonesis before the lenses have dropped. A surgeon cuts an opening in the white portion of the eye known as the sclera, and removes a tiny area of the trabecular meshwork which enables the aqueous humor to discharge. This lowers the internal pressure within the eye and lessens the chance of future damage to the optic nerve. Cases with pseudophacodonesis and dislocated IOL have been increasing in number, according to one report. In cataract surgery, complications resulting from PEX include capsular rupture and vitreous loss. Drug therapy. There are speculations that if genetics plays a role in PEX, and if the specific genes involved can be identified, that possibly drugs can be developed to counteract these mutations or their effects. But such drugs have not been developed as of 2011.Patients should continue to have regular eye examinations so that physicians can monitor pressure levels and check whether medicines are working. Epidemiology
Scientists are studying different populations and relationships to try to learn more about the disease. They have found associations with different groups but it is not yet clear what the underlying factors are and how they affect different peoples around the world. Glaucoma patients.
Pharmacokinetics
The drug is rapidly absorbed after oral administration and is widely distributed throughout the body. Biotransformation is low: the drug is predominantly excreted unchanged by the kidneys. The half-life of baclofen is roughly 2–4 hours; it therefore needs to be administered frequently throughout the day to control spasticity appropriately. Chemistry
Baclofen is a white (or off-white) mostly odorless crystalline powder, with a molecular weight of 213.66 g/mol. It is slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform. History
Historically, baclofen was designed as a drug for treating epilepsy. It was first made at Ciba-Geigy, by the Swiss chemist Heinrich Keberle, in 1962. Its effect on epilepsy was disappointing, but it was found that in certain people, spasticity decreased. Currently, baclofen continues to be given by mouth, with variable effects. In severely affected children, the oral dose is so high that side-effects appear, and the treatment loses its benefit. How and when baclofen came to be used in the spinal sac (intrathecally) remains unclear, but as of 2012, this has become an established method of treating spasticity in many conditions.In his 2008 book, Le Dernier Verre (translated literally as The Last Glass or The End of my Addiction), French-American cardiologist Olivier Ameisen described how he treated his alcoholism with baclofen. Inspired by this book, an anonymous donor gave $750,000 to the University of Amsterdam in the Netherlands to initiate a clinical trial of high-dose baclofen, which Ameisen had called for since 2004.