How To Use Raman Spectroscopy To Monitor Ophthalmic Materials Quality Control?

WHAT IS IOL?
To take the place of the clouded human lens, a precisely engineered artificial lens called the intraocular lens, or “IOL”, is implanted into the eye at the time of cataract surgery. Unlike a contact lens, it is permanently fixated inside the eye. In this way, it cannot fall out, does not require cleaning, and does not change the appearance of the eye. It produces no sensation, and cannot be felt by the patient.


WHAT ARE THREE MAIN FUNCTIONS OF IOL?
Intraocular lenses replace three main functions of the natural human lens.

• First, like a window, both the cornea and the lens must be perfectly transparent in order for external light and images to be focused onto the retina at the back of the eyeball’s interior.
• Second, the lens acts as a structural partition between the vitreous gel behind it, and the clear fluid-filled chamber in front of it.
• Finally, it provides necessary focusing power.

​​​​why the intraocular lens is one of the most important medical advances in the history of ophthalmology. Because there is no unwanted magnification, the IOL provides the most natural vision of the three alternatives following cataract surgery. It is permanent, requires no care or handling, and comes in a range of powers that can be selected for the individual patient. Nowadays, it is standard for all cataract surgeries.

WHAT CHALLENGE RAISED TO IOL MANUFACTURING?
It's about 10 million cataract surgeries performed annually, the global ophthalmic industry has become a promosing industry. For manufacturers of IOLs used for cataracts surgeries require an effective QC tool to monitor ophthalmic mateirals quality during curing process. It's relate to ensure successful post-operative results can have a influenced impact on quality of life. 

WHAT SPECTROSCOPY SOLUTION CAN MONITOR CURING PROCESS AS A QC TOOL?
Raman Spectroscopy of 785 nm setup can measure a mixture of chemicals irradiated during curing process, then it's proved to be effective QC tool to manufacturers of intraocular lens used for cataracts surgery, careful control of curing processes can prevent lens bending and distortion.

RAMAN SPECTROMETER MODELS SELECTION GUIDE:

• ATR6500 Handheld Raman Spectrometer
• ATR3000 Portable Raman Spectrometer
• ATR8300 Miniature Raman Microscope

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