- Rightway Optical Co.,Ltd
- Main products: Optical Instrument And Equipment, Ophthalmic Clinic Equipment, Laboratory equipments, Tools, Frame display, Optical Consumable, Digital Visual Acuity Chart, Slit Lamp, Auto Refractometer, Auto Lensmeter, Ophthalmic Unit, Phoropter
Home > Products > Visual Acuity > 215F 21.5 Inch HD LCD Visual Acuity Chart VisionTest Projecter Monitor for Ophthalmic Exam
215F 21.5 Inch HD LCD Visual Acuity Chart VisionTest Projecter Monitor for Ophthalmic Exam
USD $180 - $200
/ Piece
1 Piece(Min.Order)
- China
- T/T
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Product Description
Features:
An eye chart is a chart used to measure visual acuity. Eye charts are often used by health care professionals, such as physicians or nurses, to screen persons for vision impairment. Ophthalmologists, physicians who specialize in the eye, also use eye charts to monitor the visual acuity of their patients in response to various therapies such as medications or surgery.
The eye test chart is placed at a standardized distance away from the person whose vision is being tested. The person then attempts to identify the symbols on the chart, starting with the larger symbols and continuing with progressively smaller symbols until the person cannot identify the symbols. The smallest symbols that can be reliably identified is considered the person's visual acuity.
The Snellen chart is the most widely used. Alternative types of eye charts include the logMAR chart, Landolt C, E chart, Lea test,Golovin–Sivtsev table, the Rosenbaum chart, and the Jaeger chart snellen chart.
Specifications
Power supply: AC100V to 240V, 50/60Hz
Standard power: Approx. 60W
Standby power: Approx. 2W
Dot pitch of monitor: 0.282mm
Type of monitor: TFT
Size of monitor:19 inch
Ratio of monitor: 16:9
Working distance: 1m to 6.5m
Recording methods of vision: Decimal & Imperial fraction
Control distance: not less than 8M for maximum
Installation: Table support and Wall mount are all included
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- Rightway Optical Co.,Ltd
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