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The eye is one of the most powerful organs in the human body. Health problems, such as blindness, underlying genetic disorders, or diabetic retinopathy, are being detected and treated with new and updated medical technologies due to the developments made on optical research grade systems and portable point of care devices. Edmund Optics® aspheric lenses and achromatic lenses are often used in optical devices to image the eye and all of its cells, layers, and nerves. The spherical aberration correction of aspheric lenses allows them to obtain very high quality images of the fine structures of the eye, while the color correction of achromatic lenses allows them to achieve high performance when using broadband illumination sources. Our broadband anti-reflection coatings have wide transmission bands to encompass various LEDs or laser based sources in the UV, visible, and NIR wavelength ranges. Anti-reflection coatings can also be applied to any of our optics to ensure multi-modal imaging.View Products
Below are common ailments of the eye that are detected by advanced diagnostic technology. These ailments occur for a variety of reasons such as age or blunt trauma, but are more easily detected and treated due to optical advancements within the industry, which provides a means for updating medical technology and equipment for quick, portable, and simplified use.
There are a variety of advanced diagnostic techniques used to treat diseases and ailments of the eye. More and more techniques and devices are emerging due to the progression of optical technology, increasing the accuracy and timeliness of which ailments are diagnosed and providing a pathway for understanding and finding cures for incurable diseases.
Aspheric lenses feature surface profiles that are not spherical or cylindrical, but have a radius of curvature that varies radially from the center of the lens. Their most notable benefit is their ability to correct for spherical aberration and producing high resolution images. Aspheric lenses are used in many techniques including OCT, biometrics, and LASIK surgery.
Anatomy, benefits, and manufacturing methods
TECHSPEC® Aspherized Achromatic Lenses
TECHSPEC® Plastic Hybrid Aspheric Lenses
Achromatic lenses consist of two optical components cemented together and are designed to limit the effects of chromatic and spherical aberration. They are used in many devices to diagnose conditions of the eye such as Fundus cameras and broadband OCT systems that utilize the full wavelength spectrum.
When in doubt, go standard! Standard or off-the-shelf optics provide numerous advantages for those designing or creating prototypes. Unlike custom optics, standard optics offer lower prices, in-stock availability, short lead times, no yield efficiency issues, and more.
Forus Health leveraged EO’s optical design expertise and off-the-shelf components to build 3nethra, an affordable and portable ophthalmic device for diagnosing preventable eye diseases in India. India has a low ratio of ophthalmologists to population, and this easy-to-use device helps identify and prevent cataracts and glaucoma, along with diabetic retina, refraction, and cornea problems.Download
The Annidis Corporation built a non-invasive, multi-spectral digital ophthalmoscope called the Retinal Health Assessment (RHATM) Instrument primarily using stock optics. The device is used to image multiple planes in the retina and choroid to detect signs of disease or degeneration.Download
--Stephan Briggs, Biomedical Engineer and Advanced Diagnostics Expert