Optics is part of everyday life. The ubiquity of visual systems in biology indicates the central role optics plays
as the science of one of the five senses. Many people benefit from eyeglasses or contact lenses, and optics are
integral to the functioning of many consumer goods including cameras. Rainbows and mirages are examples of
optical phenomena. Optical communication provides the ba
Published News
Visual Systems & Visual Effects in Biology
Posted by Bharat (#1) 4649 days ago (Editorial)BEWARE DECORATIVE CONTACT LENSES
Posted by Bharat (#1) 4642 days ago (Editorial)
Experts say there are risks with over-the-counter contacts, and users can develop infections if not used properly
For Halloween revelers, turning their eyes from blue to otherworldly with over-the-counter, decorative contact lenses may enhance holiday fun, but health experts warn these devices can lead to serious vision-threatening problems.
To see more details, visit
For Halloween revelers, turning their eyes from blue to otherworldly with over-the-counter, decorative contact lenses may enhance holiday fun, but health experts warn these devices can lead to serious vision-threatening problems.
To see more details, visit
AOA Study Cites Safety and Compliance Issues for Rx Eyeglasses Ordered Online
Posted by Bharat (#1) 4634 days ago (Editorial)
ST. LOUIS—Consumers who order prescription eyeglasses online often receive glasses that fail to comply with optical tolerance and impact resistance requirements, according to a newly released study conducted by the American Optometric Association in conjunction with the Optical Laboratories Association and The Vision Council. The study, which was published in the September issue of Optometry: Jou
Non-Invasive Current Stimulation Improves Sight and Quality Of Life In Patients With Optic Nerve Damage
Posted by Bharat (#1) 4616 days ago (Editorial)
It has long been thought that blindness after brain lesions is irreversible and that damage to the optic nerves leads to permanent impairments in everyday activities such as reading, driving, and spatial orientation. A new study published in Elsevier's Brain Stimulation suggests that treating such patients with low levels of non-invasive, repetitive, transorbital alternating current stimulation (
Is it possible to tell what someone is feeling by looking at only his or her eyes?
Posted by Bharat (#1) 4602 days ago (Editorial)
The pupil (the black circle in the middle of the colored iris) may indicate what someone is feeling. Several factors determine the size of the pupil. Primarily, the pupils dilate (get bigger) or constrict (get smaller) to control the amount of light that enters the eyes. In addition, emotions can change the size of your pupils. When you experience pleasure, your pupils briefly dilate. Anger and f
Contact Lens Care - Few Do It Properly Although Most Think They Do
Posted by Bharat (#1) 4584 days ago (Editorial)
According to an investigation in the November issue of Optometry and Vision Science, official journal of the American Academy of Optometry, the majority of individuals who wear contact lenses believe that they are following standard guidelines for lens wear and care, however, in reality only a tiny minority of these individuals actually follows all recommended care steps. The journal is published
The Eye in Systemic Disease
Posted by Bharat (#1) 4577 days ago (Editorial)
Systemic diseases are diseases that involve many organs or the whole body. Many of these diseases also affect the eyes. In fact, an eye exam sometimes leads to the first diagnosis of a systemic disease. The eye is composed of many different types of tissue. This unique feature makes the eye susceptible to a wide variety of diseases as well as provides insights into many body systems. Almost any p
What Is Color Blindness?
Posted by Bharat (#1) 4570 days ago (Editorial)
If there is some problem with the pigments in the cones, the eye will not see colors in the usual way. This is called color deficiency or color blindness. If just one pigment is missing, the eye might have trouble seeing certain colors. Red-green colorblindness - where red and green might look the same - is the most common form of colorblindness, followed by blue-yellow colorblindness. Patients w