>>Product Specifications
Name: Eye massager
Model: IZ-2404G5
Power supply: 5 V DC 1A (USB power supply) 5W
Lithium battery: 3.7 V, 1,450 mAh
Size of packaging case: 219 x157 x 88 mm
Weight: ~ 660 g
>> Warning: Prevent “Computer Vision Syndrome”
People will feel uncomfortable if using computer for a long time.
Ophthalmologist and optometrist call it as “Computer Vision Syndrome
(CVS)”. Details on CVS are as follows:
①
Eye fatigue will be aggravated if not blinking for a long time upon
watching fluorescent screen.
This circumstance is often when reading lots of files, for computer user does
not blink or blink as less as possible to avoid missing content. Blinking is
critical for eyes protection. It offers position change opportunity to tense
crystalline lens and iris muscle, so as to lubricate eyes and prevent eyes from
generating itching and burning sensations and other symptoms.
②
The abnormal reaction “McCullough effect” will be generated
after seeing green words in black fluorescent screen during working
before fluorescent screen.
Though harmless to body, this symptom can
last for several days. It can make white words get pink slightly: A piece
of paper pasted on white wall will look like the paper with pink edge.
③
Knowledge regarding operator wearing bifocal glasses
.
For this kind of
people, optimum location of all objects should be on or below chest, with
distance for 12-18 inch. If height of fluorescent screen is not appropriate or the
distance is too near, computer user will uncomfortably bend or have his or her
head keeping a quite unnatural angle, which can cause dizziness, neck sore,
shoulder sour or general malaise. According to expert, computer operating is a
kind of work required for straining eyes, and it can reduce secretion of
lubricant and enzyme in eyes. General speaking, there will be eyes dryness and
fatigue, ghosting, blurred vision, head and neck soar and other symptoms if
times of blinking is less than 5 and interval is relatively long.
