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Education
Editor’s Choice
How to choose the right children’s diopter frame?
Children and glasses
News in Livision optics
Discover the benefits of daily lenses and prescription sunglasses and see the new Xavier Garcia collection
Photosensitive spectacle lenses
We introduce you to photosensitive eyeglass lenses
Articles
Anatomy of the eye
eye lens
eye lens (lat. lens ) is a transparent body located in the eye directly behind the iris, in front of the vitreous body, and occupies most of the posterior chamber. Seen from the front, it is round, and seen in cross-section, oval (biconvex). It is built, looking from...
Retina
The retina is a very delicate, photosensitive membrane that lies on the inside of the eyeball. The role of the retina is to convert the light signal into an electrical impulse that is further transmitted via the optic nerve to the brain. This is possible due to the...
Eye muscles
We can direct our gaze in various directions thanks to head movements and eyeball movements. Movements of the eyeball are made possible by the external muscles of the eye (lat. musculi bulbi ). Razlikujemo šest mišića koji imaju hvatište na očnoj jabučici: gornji,...
Aqueous humor
Eye water (Latin humor aqueous ) is a clear liquid that fills the eye chambers. It is produced in the ciliary body at a rate of about two microliters per minute. The ratio of formation and outflow of aqueous humor is constantly equal, and in the case of an increased...
Articles
Diseases and errors of the eye
Myopia – myopia
The word myopia (lat. Myopia) means short vision and mouse hole, and the verb myein means to close the eyes. Myopia is a refractive anomaly (error of the eye) due to which light rays focus in front of the retina, therefore creating a blurred image of the observed...
Uveitis – inflammation of the middle layer of the eye
The middle layer of the eye, which consists of the iris (iris), the ciliary body and the choroid, is called the uvea, and its inflammation is called uveitis. Due to its close physical contact with the choroid, as well as due to their metabolic interdependence,...
Strabismus
Strabismus or strabismus is a disease in which both eyes do not look in the same direction at the same time, in other words, deviation of the visual axis of the eye to the side.Origin and division of the disease:There are two basic forms of strabismus: 1. Concomitant...
Cataract
The eye lens is the part of the eye that is behind the iris and in front of the vitreous body, and occupies most of the so-called posterior chamber. It is a formation that consists of properly arranged lens threads (fibrils) and is transparent under normal conditions....
Articles
Physics of the eye
Physics of the visual field
The eye creates images of objects from that part of space from which light can reach it.If the eye is at rest, that part of the space is called the visual field of the resting eye. The best visibility is in the area of the 30 arcmin aperture cone. Due to the high...
Abbe’s number
Abbe's number is a measure of light dispersion. If the spectrum creation experiment is performed on two, geometrically exactly the same prisms, i.e. prisms with the same refractive angle, but made of two types of glass, for example one made of crown glass, the other...
Refractive index
In optics, by refractive index we mean the absolute refractive index. An index number is a number that tells us how many times a ray of light moves more slowly through an optical medium than in a vacuum. In a vacuum, the speed of light is approximately 300,000 km/s....
What is a diopter?
Dioptric strength of the lens (convergence of the lens).The power of the lens D is the reciprocal of the focal length expressed in meters.The strength of the lens is expressed in reciprocal meters. Convergent lenses have positive optical power, and divergent lenses...
Articles
Interpretation of findings
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Education
Editor’s Choice
How to choose the right children’s diopter frame?
Children and glasses
News in Livision optics
Discover the benefits of daily lenses and prescription sunglasses and see the new Xavier Garcia collection
Photosensitive spectacle lenses
We introduce you to photosensitive eyeglass lenses
Anatomy and physics of the eye
Editor’s Choice
How to choose the right children’s diopter frame?
Children and glasses
News in Livision optics
Discover the benefits of daily lenses and prescription sunglasses and see the new Xavier Garcia collection
Photosensitive spectacle lenses
We introduce you to photosensitive eyeglass lenses
Diseases and errors of the eye
Editor’s Choice
How to choose the right children’s diopter frame?
Children and glasses
News in Livision optics
Discover the benefits of daily lenses and prescription sunglasses and see the new Xavier Garcia collection
Photosensitive spectacle lenses
We introduce you to photosensitive eyeglass lenses
Interpretation of findings
Editor’s Choice
How to choose the right children’s diopter frame?
Children and glasses
News in Livision optics
Discover the benefits of daily lenses and prescription sunglasses and see the new Xavier Garcia collection
Photosensitive spectacle lenses
We introduce you to photosensitive eyeglass lenses
