Miscellaneous Macular Degeneration Information

Retinal atrophy is a hereditary disorder that can cause permanent blindness. It occurs as a result of the death of photoreceptor cells, commonly called rods and cones, in the eye.

People interested in perception have long struggled to explain what visual processing does to create what we actually see.

Since lutein is found in very high concentration in the macula and has been shown to act as a shield to the retina and protects it from harmful light, taking macular degeneration vitamins rich in lutein may help strengthen your macula.

Hypnagogic hallucinations and hypnopompic hallucinations are considered normal phenomena. Hypnagogic hallucinations can occur as one is falling asleep and hypnopompic hallucinations occur when one is waking up.

There is epidemiological evidence of a relationship between low plasma concentrations of lutein and zeaxanthin on the one hand, and the risk of developing age-related macular degeneration (AMD) on the other.

Myopic macular degeneration is the seventh leading cause of legal blindness in Europe and the United States.

Most of the treatments that are available now and and currently being studied are aimed at stopping the neovascular (or wet) form of AMD.

Recent studies suggest that statins, a family of drugs used for reducing cholesterol levels, may be effective in prevention of macular degeneration, and in slowing its progression.

Humans have three types of photoreceptors: rods, cones and photoreceptive ganglion cells. Both are neurons that transduce light into a change in membrane potential through the same signal transduction pathway.

The steps in phototransduction that take place in the vertebrate photoreceptors eye, which constitute a signal transduction pathway.

The central retina is cone-dominated and the peripheral retina is rod-dominated. In total there are about seven million cones and a hundred million rods.

The cones respond to bright light and mediate high-resolution vision and colour vision. The rods respond to dim light and mediate lower-resolution, black-and-white, night vision. It is a lack of cones sensitive to red, blue, or green light that causes individuals to have deficiencies in colour vision or various kinds of colour blindness.

Although most posterior vitreous detachments do not progress to retinal detachments, those that do produce certain symptoms.

There are several methods of treating a detached retina which all depend on finding and closing the holes (tears) which have formed in the retina.

The most effective way of preventing retinal detachment is educating people to seek ophthalmic medical attention if they suffer symptoms suggestive of a posterior vitreous detachment.

Vision loss may be caused by media opacities, retinal disease, optic nerve disease, visual pathway disorders, or functional disorders, or it may be in fact an acute discovery of chronic visual loss.

When light strikes the retina, within 200 femtoseconds, after the retinal molecule absorbs a photon into one of the pi bonds found between the eleventh and twelfth carbon atoms, the 11-cis retinal is transformed into the all-trans retinal in a straightened configuration.

The optic nerve is the second of twelve paired cranial nerves but is considered to be part of the central nervous system as it is derived from an outpouching of the diencephalon during embryonic development.

Vitamin Science Inc was the first company in the United States to offer a mixed macular degeneration supplement which contained zeaxanthin.