The human face is capable of illustrating expressions of emotion through facial expressions, which is made possible with the multitude of muscles found in the face. Because of the versatile features and the many sensitive parts that the face contains, various forms of disease can occur. The medical aspects of the face are outlined below. … Face: Structure, Function & Diseases
The optic nerve is formed by approximately one million nerve fibers. These nerve fibers are grouped into bundles and meet about 10 to 15 millimeters behind the eyeball with the central artery of the retina and the vein. Together, the vessels then move forward in the interior of the nerves to the optic nerve head … Causes of optic atrophy
Synonym Keratoplasty Introduction The cornea covers the front part of the eye. It is a thin transparent collagenous layer of approximately 550 micrometers to 700 micrometers that is not visible to the naked eye. It protects the eyeball and refracts the incident light rays. Structure of the cornea The cornea consists of several layers (structure). … Cornea of the eye
Inflammation of the cornea First aid for corneal injury always depends on the type of injury. A common cause of corneal injury is foreign bodies, such as those that can be caused by improper grinding or drilling. If such foreign bodies penetrate the cornea, it can be very difficult to determine the severity of the … Inflammation of the cornea | Cornea of the eye
Corneal Transplantation If corneal diseases severely limit the vision of the eye, or if there are diseases of the cornea that cannot be controlled in any other way, a corneal transplant can be performed. In this procedure, the patient’s cornea is removed and replaced by donor cornea. It is possible to replace the entire cornea … Corneal Transplantation | Cornea of the eye
Introduction Astigmatism, colloquially known as astigmatism or astigmatism, is a widespread form of ametropia in addition to the classic long and near-sightedness. Until a few years ago, it was usually treated with the use of special glasses or contact lenses. For some years now, ophthalmologists have been offered another treatment option: laser treatment. This low-complication … Laser therapy for astigmatism
Correction After the strength of the refractive error has been determined using special diagnostics, such as an opthalmometer (to measure the curvature of the cornea), a correction of the astigmatism can be attempted. Various treatment methods are available for this purpose. Primarily, ophthalmic lenses with a special cylinder cut are used, which are therefore also … Correction | Laser therapy for astigmatism
Introduction Nearly everyone can recognize small black dots, fluff or threads when they look at a white wall, the sky or white paper, which other people present cannot see. These spots in the field of vision move flittingly together with the line of sight. They are called “flying mosquitoes” (Mouches volantes). They are caused by … Vitreous body turbidity
Synonyms in a broader sense Medical: Astigmatism Astigmatism, Pointlessness Definition Astigmatism (astigmatism) is a visual disorder caused by an increased (or more rarely a decreased) astigmatism. Incident light rays cannot be bundled in one point, and round objects, for example a sphere, are imaged and perceived as rod-shaped. In general, the astigmatism leads to a … Astigmatism
Synonym Keratoplasty Definition Corneal transplantation is the transfer of parts or all of the cornea of a donor’s eye to a recipient’s eye. Corneal transplantation today is usually performed in its entire thickness. This procedure is also called penetrating keratoplasty. The prerequisite is that the other functions of the eye that contribute to vision are … Corneal Transplantation
Duration of corneal transplantation On the day of the operation itself, the patient either remains in hospital overnight or is discharged home the same day (outpatient procedure), but must then go to an ophthalmologist‘s office for a check-up the following day. The vision of the treated eye will not be fully restored in the first … Duration of corneal transplantation | Corneal Transplantation
Neuroophthalmology deals with defective vision caused by the so-called strabismus. It is a permanent or recurrent misalignment of the eyes. What is neuroophthalmology? Neuroophthalmology deals with defective vision caused by the so-called strabismus. Ophthalmology distinguishes between two forms of this defective vision: congenital and acquired. When a person squints, his or her eyes do not … Neuroophthalmology: Treatment, Effects & Risks
