Pls read "The Influence of Low-powered Family LED Lighting on Eyes in Mice Experimental Model" in life science journal and you will know most of them will damage eyes. Not depend on luminous intensity.
The cone receptors in the eye respond to red, green and blue. When you perceive something as yellow, it is really high intensity red and green lights with low intensity blue lights.
With high intensity light your pupil constricts. This happens to protect your retina from damage by light of high intensity.
Yes they can. It can do permanent damage to the retina. Unless you would have it done to you for all eternity, do not shoot anyone or anything in the eye with a laser.
No, bright light can't damage the retina. Only ultraviolet light can, it causes a retinal "sunburn".
Yes
Yes, the retina is a pivotal part of the eyes ability to see.
Too much exposure to visible light can cause damage to your retina.
Diabetic Retinopathy
diabetic retinopathy
Looking directly at the sun can damage the retina and/or cause blindness.
diabetic retinopathy
The lens of the eye is held in place by strong ligaments. It is the ligaments that contract and expand in order to focus on an image. This happens before the image reaches the retina. Smoking can damage the part of the retina called the macula. There are also indications smoking can cause the blood vessels in that area to constrict.