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An eye examination is a series of tests performed to assess vision and ability to focus on and discern objects. It also includes other tests and examinations pertaining to the eyes, such as refraction, pupil function, ocular motility, visual fields, and ophthalmoscopy.
During the preoperative screening, a complete examination of the eye is carried out at a consultation with the surgeon to determine if a patient is suitable for Laser Blended Vision treatment. The dominant eye is determined and vision tested to identify the level of correction required for distance and near on the dominant eye and non-dominant eye.
Visual impairment is the partial or total inability of visual perception that affects daily tasks and activities. It can be caused by various factors, such as uncorrected refractive errors, cataracts, glaucoma, or brain problems. Learn how it is diagnosed, treated, and classified by different systems.
Visual acuity is the clarity of vision and the ability to recognize small details. It is measured by optotypes on a chart and expressed as a fraction, such as 6/6 or 20/20, which means the distance at which a person with normal vision can see the same optotype.
A visual field test is an eye examination that can detect dysfunction in central and peripheral vision caused by various medical conditions. Learn about the methods, types and applications of visual field testing, such as perimetry, Goldmann perimeter, automated perimetry and microperimetry.
Learn about night vision, the ability to see in low-light conditions, either naturally or with devices. Explore the different types of night vision, such as spectral range and intensity range, and the technologies and devices that enhance them, such as image intensification, active illumination and thermal imaging.
Sentient Vision Systems is an Australian company that produces computer vision solutions for video from aircraft and surface sensors. It offers automated object detection and tracking in full motion video for intelligence, surveillance and reconnaissance, search and rescue, and law enforcement.
Learn how YouTube implements its protection methods and deals with copyright claims and lawsuits. Find out about the controversies, challenges and criticisms surrounding YouTube's copyright enforcement system.