Contact Lens Technologists

With many industries shifting their work from manual work to computer-based, lots of people have started to find a weakening of eyes. There are instruments available for weak eyes such as specs and contact lenses. These products allow people to keep working on their computers without damaging their eyes further. While specs are quite visible on the face contact lens allow people to look the same way as they used to. This is the reason people choose lenses over specs.  There were speculations that the lens damages the eyes more because it blocks oxygen from reaching inside. While many of these speculations proved to be true there is one product that advances this notion. Contact lens made from  silicone hydrogel  makes it possible for required oxygen to pass through. The lens is a soft material since its silicone and easily fitted in the eyes without causing much pain. But the contact lens should not be worn near the fire or while cooking since it can melt down and damag...

Soft contact lenses were made possible in the 1960s and 1970s by the development of water-loving polymers: large molecules made of repeated pieces (think of a long train of many railcars). These were called "hydrophilic gels" or simply "hydrogels." Silicone hydrogel is the latest in a line of developments aimed at increasing the oxygen permeability (increased comfort, longer wear and better eye health), wet ability (better comfort) and clinical performance of contact lenses. Silicone has higher oxygen permeability, allowing more oxygen to pass, than water, so oxygen permeability is no longer tied to how much water is in each lens. There are many types of technology transfer , even generations, of silicone hydrogels used to manufacture contact lenses today. These come with technical names such as galyfilcon, senofilcon, comfilcon and enfilcon. Each contact lens, whatever the material, is U.S. FDA-approved or cleared for specific wear and replacement conditions. ...

A method known, in general, for Turnkey contact lens manufacture is static cast molding. Cast molding of contact lenses involves depositing a curable mixture of polymerizable monomers in a mold cavity formed by two mold sections, curing the monomer mixture, and disassembling the mold assembly and removing the lens. One mold section forms the anterior lens surface (anterior mold section), and the other mold section forms the posterior lens surface (posterior mold section). Prior to the cast molding technology of the contact lens, each of the mold sections is formed. Conventional methods involve injection molding the molds sections from a resin in the cavity of an injection molding apparatus. Typically, the mold sections are used only once for casting a lens and then discarded. Several cast molding methods have been found to offer the potential to reduce production time and cost for the manufacture of soft hydro gel contact lenses, since time-consuming and labor-intensive operation...

The present invention relates to improvements in static cast molding of contact lenses. A method known, in general, for manufacturing contact lenses is static cast molding. Cast moulding technology of contact lenses involves depositing a curable mixture of polymerizable monomers in a mold cavity formed by two mold sections, curing the monomer mixture, and disassembling the mold assembly and removing the lens. One mold section forms the anterior lens surface (anterior mold section), and the other mold section forms the posterior lens surface (posterior mold section). Prior to the cast molding contact lens , each of the mold sections is formed. Conventional methods involve injection molding the molds sections from a resin in the cavity of an injection molding apparatus. Typically, the mold sections are used only once for casting a lens and then discarded. Several cast molding methods have been found to offer the potential to reduce production time and cost for the manufacture of sof...

Contact lenses are kept directly on your eyes, this assures unobstructed central and peripheral vision. This is why many people, especially athletes and those who follow active lifestyles, tend to prefer them. They also provide you accurate depth perception and a better sense of balance. Turnkey contact lens manufacture is done by so many reputable companies. You cannot wear spectacles everywhere, for example- you wouldn’t like to wear it in weddings Sharper Visual Acuity Contact lenses are present in distinct materials and lens types, with each one formulated to address specific eye care requirements. You’ll have to undergo a comprehensive eye exam to determine the best type of contact lenses to enhance your eyesight. If you have keratoconus or your healthcare find signs of dry eyes, for example, it is advisable to use scleral contact lenses, which are larger than standard lenses and may be more comfortable. Silicone hydrogel contact lenses are advanced soft lenses that allow for mor...

  The process of engineering by carving liquid or flexible raw substances via a mold or matrix is referred as moulding. It has been designed with the help of a pattern or model of the final object. But casting means the whole manufacturing process in which molten metal is immunised or discharged into a mold to become an object of a desired shape.  Cast moulding technology  has promoted the production of several life-changing things such as- cast molding   contact lenses .   Casting has the following benefits over other manufacturing processes. It can form any complicated structure economically. The dimensions of an object don’t matter for casting. The casting objects have high compressive strength. All structure composed by casting has a wide array of properties. This can produce an accurate object. This invention equips with an approach for cast-molding hydrogel contact lenses, peculiarly silicone hydrogel contact lenses by including plas...