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Invisalign is a brand of clear aligners manufactured by Align Technology. The clear align system has been used to treat more than 14 million patients. [2] Align Technology founder Zia Chishti conceived of the basic design of Invisalign while an adult orthodontics patient. During his treatment with a retainer intended to complete his treatment ...
Cataract surgery and IOL implantation have the safest and highest success rates of any eye care-related procedures. As with any type of surgery, however, some level of risk remains. [7] Most complications of cataract surgery do not result in long-term visual impairment, but some severe complications can lead to irreversible blindness. [90]
Invisalign is manufactured by Align Technology, an American multinational medical-device company. The company's clear align system has been used to treat more than 12.2 million patients. [2] The company was founded in 1997 by Zia Chishti. Chishti conceived of the basic design of InvisAlign while an adult orthodontics patient.
Cataract surgery with implantation of a toric IOL is essentially the same as cataract surgery with a conventional IOL. Like toric contact lenses, toric IOLs have different powers in different meridians of the lens, and they must be positioned on the correct meridian to reverse the preexisting astigmatism. If the toric IOL is not on the correct ...
Intraocular lenses that are implanted into eyes after the eye's natural lens has been removed during cataract surgery are known as pseudophakic. Phakic intraocular lenses are indicated for patients with high refractive errors when the usual laser options for surgical correction ( LASIK and PRK ) are contraindicated.
Easy removal, or no removal required after use; The most relevant physical properties for use in ophthalmic surgery are viscoelasticity, viscosity, pseudoplasticity, and surface tension. [2] These physical properties of an OVD are consequences of molecular chain length, and molecular interactions between chains.
Manual small incision cataract surgery (MSICS) is an evolution of extracapsular cataract extraction (ECCE); the lens is removed from the eye through a self-sealing scleral tunnel wound. A well-constructed scleral tunnel is held closed by internal pressure, is watertight, and does not require suturing.
After being used regularly for centuries, couching has been mostly abandoned in favour of more effective techniques, due to its generally poor outcomes, and is currently only routinely practised in remote areas of developing countries. [11] [12] Cataract surgery was first mentioned in the Babylonian code of Hammurabi 1750 BCE. [13]