30 matching records for Spectacle Lens.
An ophthalmic device in the form of a separate lens, spectacles or lorgnette intended to be used to determine/diagnose ophthalmic conditions (e.g., pseudofovea, abnormal retinal correspondence, suppression and diplopia). The lens has narrow striations runni...
A pair of lenses intended to be mounted onto a surgeon's spectacles to function as small telescope and provide a magnified image of the visual field during patient examination or surgical intervention. Also known as a surgical loupe, it may be mounted onto ...
A thin, plastic, flap-like device that is clipped onto the upper frame of a pair of existing spectacles (eyeware) to block vision through the spectacle lens. It is typically made of plastic and is available in preformed, leaf-shaped, disks, usually with a p...
A personal protective device used to shield the eyes of an individual by forming a semi-closed chamber around each eye to retain the natural eye moisture and help keep the eyes lubricated. It consists of a spectacle frame with a pair of spectacle lenses (ty...
A personal protective device in the form of eyewear/glasses with clear lenses intended to be used to shield the eyes of healthcare staff from unnecessary exposure to primary and scattered radiation associated with diagnostic and therapeutic medical procedur...
An optical device made of glass or plastic that is a semi-finished lens made by the manufacturer intended to be further processed (e.g., further grinding, polishing and cutting) according to a specific patient prescription before it can be mounted into a sp...
An ophthalmic device consisting of a spectacle frame with a pair of optical spectacle lenses (typically made of plastic or glass, also known as eyeglasses) designed to be worn in front of the user's eyes to provide refractive corrections to eyesight conditi...
An ophthalmic lens made of a treated glass or plastic intended to be worn in front of the eyes to attenuate rays of light by absorption, reflection, or polarization to protect the eyes from bright light; it is neither intended to provide refractive correcti...
An ophthalmic device consisting of a spectacle frame with a pair of optical spectacle lenses (typically made of plastic or glass, also known as eyeglasses) designed to be worn in front of the user's eyes to provide refractive corrections to eyesight conditi...
A thin plastic sheet with embossed rulings, which provides the optical effect of a prism, intended to be applied to spectacle lenses to give a prismatic effect typically to manage strabismus or other eye muscle dysfunction. The device may also be temporaril...
An ophthalmic lens made of glass or plastic that is manufactured in accordance with a specific patient prescription (custom-made) and intended to be worn in front of the eyes to correct the refractive errors of that patient's eyesight, e.g., refractive amet...
An ophthalmic instrument designed to manually measure the curvature of the surface of a spectacle lens. It is usually calibrated in dioptres of surface power for a given refractive index.
An ophthalmic lens made of glass or plastic that is manufactured in accordance with a standard prescription (not customized for a specific patient) and intended to be worn in front of the eyes to correct the refractive errors of a patient's eyesight, e.g., ...
A very thin and flexible ophthalmic lens intended to be applied to the back of spectacle lenses to focus light to a focal point to help manage various vision conditions including aphakia (absence of the lens of the eye), myopia, hyperopia, and presbyopia. I...
An optical device, commonly known as sunglasses, that consists of a spectacle frame or clips with a pair of tinted spectacle lenses (typically made of plastic or glass) designed to be worn in front of the eyes to attenuate light radiation by absorption, ref...
An ophthalmic device designed to hold a pair of spectacle lenses in front of and close to the eyes of the user. It typically consists of a plastic or metallic frame that is supported by the nose and ears. The device may have a protective function (e.g., by ...
An ophthalmic device made of a treated glass or plastic that is used to attenuate rays of light by absorption, reflection, or polarization to protect the eyes from bright light, but not to provide refractive corrections. This device may require cutting to e...
An optical device that consists of a spectacle frame or clips made of metal and/or plastic materials that contains a pair of tinted spectacle lenses (typically made of plastic or glass) that are worn in front of the user's eyes to attenuate light radiation ...
An optical device, commonly known as sunglasses, that consists of a spectacle frame or clips with a pair of tinted spectacle lenses (typically made of plastic or glass) designed to be worn in front of the eyes to attenuate light radiation by absorption, ref...
A battery-powered ophthalmic device designed to test and train vision for conditions where decreased visual acuity may be due to unequal vision in the eyes (e.g., presbyopia). It is in the form of spectacles with lenses that can independently be made opaque...
A mains electricity (AC-powered) ophthalmic instrument designed to measure the focusing power (dioptric power) and other optical characteristics of a spectacle lens, contact lens, or prism. The device is fully automated and does not require manual adjustmen...
A mains electricity (AC-powered) ophthalmic instrument designed to measure the focusing power (dioptric power) and other optical characteristics of a spectacle lens, contact lens, or prism through manual adjustments to the instrument performed by the operat...
A device used to hold prisms, spheres, cylinders, or occluders on a trial lens frame or set of spectacles during vision testing. This is a reusable device.
A device that consists of a spectacle frame with convex lenses intended to enlarge text/images for a visually impaired patient/person. It is made of plastic material or glass within a plastic or metal frame.
An electrically-powered lamp mounted on a headband, helmet frame, or spectacles and intended to provide light directly onto the field of vision during a dental or surgical procedure. The light typically consists of a magnifying lens, a reflector, a light bu...
An ophthalmic device consisting of a spectacle frame with a pair of coloured/tinted lenses (non-refractive) designed to be worn in front of the patient’s eyes to enhance colour discrimination in patients with colour vision deficiency; it is not intended to ...
A battery-powered, ophthalmic instrument designed to examine the interior of the eye allowing the examiner to clearly see a wide angle, stereoscopic impression of the details of the fundus (retina) and other structures. It typically consists of a main light...
An electrically-powered, head-worn, ophthalmic instrument designed to be held arm’s length from the patient to examine the interior of the eye and related structures [e.g., fundus (retina), cornea, aqueous, lens, vitreous] using the examiner’s two eyes simu...
A mains electricity (AC-powered), ophthalmic instrument designed to examine the interior of the eye allowing the examiner to clearly see a wide angle, stereoscopic impression of the details of the fundus (retina) and other structures. It typically consists ...
A battery-powered, hand-held, torch-like device designed to visualize, and facilitate identification of, abnormalities of the oral mucosa (e.g., malignancy, dysplasia, bacterial and fungal infections) using one or more wavelengths (colours) of light. It may...