What is the maximum negative eye power?
What is the maximum negative eye power?
It can be corrected by giving concave ( minus) lens in front of eye. In Simple Myopia power does not progress after adolescence. (power of 5 or 6 dioptres may be the maximum).
Is sleeping near a computer bad for you?
Tempting as it might be to use your computer or phone before bed, studies have shown these devices can interfere with sleep by suppressing the production of melatonin, a natural hormone released in the evening to help you feel tired and ready for sleep.
Is negative 10 legally blind?
What Eye Prescription is Considered Legally Blind? In the United States, an individual has legal blindness if their vision with glasses or contacts is 20/200 or worse.
How does computer impact on entertainment?
Computers help in improving productivity by automating time consuming, repetitive and monotonous processes. They give the movie makers a lot by giving them the power to create the kind of special effects they want. They are also extensively used behind the scenes to edit film during the production process.
What are the disadvantages of computers?
What are the disadvantages of a computer?
- Too much sitting.
- Carpal tunnel and eye strain.
- Short attention span and too much multitasking.
- Potential of loss of privacy.
- Can limit learning and create a dependency.
- Time sink and lots of distractions.
- Can reduce jobs.
- Increases waste and impacts the environment.
What is the disadvantage of computer in libraries?
The computer viruses, lack of standardization for digitized information, quick degrading properties of digitized material, different display standard of digital product and its associated problem, health hazard nature of the radiation from monitor etc.
Do laptops give off radiation?
Your laptop emits many forms of radiation including waves from across the electromagnetic spectrum. But all of the radiation emitted by your laptop is too low-frequency and too low-intensity to be harmful to humans. Also, many of these types of radiation emission are not unique to laptops.