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The iPhone 14 features a 6.1-inch (155 mm) display with Super Retina XDR OLED technology at a resolution of 2532 × 1170 pixels and a pixel density of about 460 PPI with a refresh rate of 60 Hz. The iPhone 14 Plus features a 6.7-inch (170 mm) display with the same technology at a resolution of 2778 × 1284 pixels and a pixel density of around ...
Eye examination for visual acuity. Visual acuity is a measure of the spatial resolution of the visual processing system. VA, as it is sometimes referred to by optical professionals, is tested by requiring the person whose vision is being tested to identify so-called optotypes – stylized letters, Landolt rings, pediatric symbols, symbols for the illiterate, standardized Cyrillic letters in ...
The chart was designed by Ian Bailey [5] and Jan E. Lovie-Kitchin at the National Vision Research Institute of Australia. [1] [3] They described their motivation for designing the LogMAR chart as follows: "We have designed a series of near vision charts in which the typeface, size progression, size range, number of words per row and spacings were chosen in an endeavour to achieve a ...
Public fears of cell phone exposure were elevated after an early trial in 2008 found a correlation between glioblastoma (an aggressive malignant brain cancer) and acoustic neuromas, which Saphier ...
Apple has an awkward iPhone problem. Apple's AI technology will make it easier to write emails and catch up with texts, the company has said. Apple. Apple unveiled its push into AI, Apple ...
Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...
Ophthalmology, optometry. Anterior ischemic optic neuropathy (AION) is a medical condition involving loss of vision caused by damage to the anterior portion of the optic nerve as a result of insufficient blood supply (ischemia). This form of ischemic optic neuropathy is generally categorized as two types: arteritic AION (or AAION), in which the ...
The iPhone has a minimal hardware user interface, with most models featuring five buttons. The only physical menu button is situated directly below the display and is called the "Home button" because its primary function is to close the active app and navigates to the home screen of the interface. Earlier models included a rounded square ...