We operate a cataract surgery by Dr.Akahoshi,The director of ophthalmology at Mitsui memorial hospital.

It is a condition that the eye tears gets insufficient which protects the surface of eye ball.
Eye fatigue, pain dryness, can not open eyes more than 10 seconds or so.
Generally with eye drops treatment is common, but to make a counsel with eye doctor is much more better for treat.

Cornea ( part of black eye ) disease caused by injury, in appropriate use of contact lenses, bacterial or viral infection, dry eyes and various other causes illness.
Depending on the extent, they causes eye pain, inflammation, poor vision.

That cannot be taken off even if you take a long sleep.
Pains in eyes, Headache, vision blurry.

VDT syndrome is a sickness caused by long time using personal computer, word processor, video games.
It also called “Techno stress eye disease”.
Keeping focus on screen too long or taking the some stance for a long time makes dry eye, eye strain and imposes a burden to your neck, shoulders and arms.