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Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
Medical ethics is an applied branch of ethics which analyzes the practice of clinical medicine and related scientific research. [1] Medical ethics is based on a set of values that professionals can refer to in the case of any confusion or conflict. These values include the respect for autonomy, non-maleficence, beneficence, and justice. [2]
Convergence insufficiency. Convergence Insufficiency. Other names. Convergence disorder. Specialty. Ophthalmology, optometry. Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence .
The Hippocratic Oath is an oath of ethics historically taken by physicians. It is one of the most widely known of Greek medical texts. In its original form, it requires a new physician to swear, by a number of healing gods, to uphold specific ethical standards. The oath is the earliest expression of medical ethics in the Western world ...
It can be used to establish whether a patient has the ability for the eyes to fuse the light that is received from each eye into 4 lights. The test is indicated with the use of a presence of a prism in individuals with a strabismus and fusion is considered present if 4 lights are maintained, with or without the use of a prism. The W4LT can also ...
The UN Principles of Medical Ethics is a code of medical ethics relating to the "roles of health personnel in the protection of persons against torture and other cruel, inhuman or degrading treatment or punishment.", adopted by the United Nations on 18 December 1982 at the 111th plenary meeting of the United Nations General Assembly. [1]
The International Code of Medical Ethics [1] was adopted by the General Assembly of the World Medical Association at London in 1949, and amended in 1968, 1983, and 2006. It is a code based on the Declaration of Geneva and the main goal is to establish the ethical principles of the physicians worldwide, based on his duties in general, to his ...
Evidence-based medical ethics [1] [2] is a form of medical ethics that uses knowledge from ethical principles, legal precedent, and evidence-based medicine to draw solutions to ethical dilemmas in the health care field. Sometimes this is also referred to as argument-based medical ethics. [3] It is also the title of the book Evidence-Based ...
Strabismus surgery is a one-day procedure that is usually performed under general anesthesia most commonly by either a neuro- or pediatric ophthalmologist. [1] The patient spends only a few hours in the hospital with minimal preoperative preparation. After surgery, the patient should expect soreness and redness but is generally free to return home.