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One theory suggests that cyanopsia may develop due to the sudden unmasking of blue light sensitivity after cataract surgery, as the brain adjusts to the removal of the natural lens. For medication-induced cyanopsia, the inhibition of PDE6 is believed to temporarily disrupt normal photoreceptor function, emphasizing blue light in visual perception.
Cataract surgery, also called lens replacement surgery, is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. [1] The eye's natural lens is usually replaced with an artificial intraocular lens (IOL) implant.
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.
Aphakia is the absence of the lens of the eye, due to surgical removal, such as in cataract surgery, a perforating wound or ulcer, or congenital anomaly. It causes a loss of ability to maintain focus (accommodation), high degree of farsightedness (), [1] and a deep anterior chamber.
The removal of cataracts by surgery was introduced into China from India, and flourished in the Sui (581–618 CE) and Tang (618–907 CE) dynasties. [ 17 ] The first references to cataract and its treatment in Europe are found in 29 CE in De Medicina , a medical treatise by Latin encyclopedist Aulus Cornelius Celsus , which describes a ...
Cataract which is the most crucial concern for the Sulcus-Supported PIOLs. According to FDA approximately 6% to 7% of eyes develop anterior subcapsular opacities at 7+ years following Implantable Collamer Lens implantation and 1% to 2% progress to clinically significant cataract during the same period, especially very high myopes and older ...
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