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Ophthalmic viscosurgical devices (OVDs) are a class of clear gel-like material used in eye surgery to maintain the volume and shape of the anterior chamber of the eye, and protect the intraocular tissues during the procedure. They were originally called viscoelastic substances, or just viscoelastics.
Services include Intraocular lenses, laser vision correction systems, phacoemulsification systems, viscoelastic, Microkeratomes and related products used in cataract and refractive surgery. Johnson and Johnson Surgical Vision is based in Santa Ana , California, and Johnson & Johnson Vision Care is based in Jacksonville, Florida.
Binocular single vision: BV: Binocular vision: BVD: Back vertex distance BVP: Back vertex power CD: Centration distance C/D: Cup–disc ratio CF: Count fingers vision – state distance c/o or c.o. Complains of CT: Cover test c/u: Check up CW: Close work Δ: Prism dioptre D: Dioptres DC: Dioptres cylinder DNA: Did not attend DOB: Date of birth ...
Glaucoma is a group of diseases affecting the optic nerve that results in vision loss and is frequently characterized by raised intraocular pressure (IOP). There are many glaucoma surgeries, and variations or combinations of those surgeries, that facilitate the escape of excess aqueous humor from the eye to lower intraocular pressure, and a few that lower IOP by decreasing the production of ...
The human eye is an organ which reacts to light for several purposes. As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors. [3]
Unlike purely elastic substances, a viscoelastic substance has an elastic component and a viscous component. The viscosity of a viscoelastic substance gives the substance a strain rate dependence on time. Purely elastic materials do not dissipate energy (heat) when a load is applied, then removed.
The first issue of Investigative Ophthalmology was published in January 1962, with Bernard Becker, MD, as the Executive Editor. The title was changed to Investigative Ophthalmology & Visual Science in 1977. [2] Abstracts from the ARVO Annual Meeting have been published as an issue of IOVS since 1977. [2]
An intracameral injection is usually of an antibiotic into the anterior chamber of the eyeball to prevent endophthalmitis caused by an infection of the eye that can occur after cataract surgery. The Food and Drug Administration (FDA) has not approved antibiotics for this use and it is considered 'off-label'.