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Prism correction. Prism lenses (here unusually thick) are used for pre-operative prism adaptation. Eye care professionals use prism correction as a component of some eyeglass prescriptions. A lens which includes some amount of prism correction will displace the viewed image horizontally, vertically, or a combination of both directions.
The prism cover test (PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]
Optical aniseikonia due to anisometropia can be corrected by spectacles, contact lenses or refractive corneal surgeries. Spectacle correction is done by changing the optical magnification properties of the auxiliary optics (corrective lenses).
Refractive errors are corrected with eyeglasses, contact lenses, or surgery. Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider field of vision; however they are associated with a risk of infection. Refractive surgery permanently changes the shape of the cornea.
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.
The Sri Lanka Overseas Service ( SLOS) ( Sinhala: ශ්රී ලංකා විදේශ සේවය; śrī laṁkā vidēśa sēvaya) which is most commonly referred to as the Sri Lanka Foreign Service is the foreign service of Sri Lanka. It is the body of career diplomats of Sri Lanka.
The State Pharmaceuticals Corporation (SPC) is a state-owned enterprise with its headquarters in Colombo, Sri Lanka. It is the largest supplier of drugs in the country, and is tasked with providing quality-assured health care items that are safe and effective, at an affordable price, while educating the public on the rational use of drugs.
Politics of Sri Lanka. There have been fifteen prime ministers of Sri Lanka since the creation of the position in 1947, prior to the independence of the country ( then known as Ceylon ). The prime minister of Ceylon was the head of the government until 1972.
The Department of Prisons is tasked with ensuring that custodial sentences (imprisonment) and non-custodial sentences and orders (home detention, supervision, community work and release on conditions) imposed by Sri Lankan Courts are administered in a safe, secure, humane and effective way.
The Inspector General of Police (IGP) is the professional head of the Sri Lanka Police. They are the most senior police officer in Sri Lanka and oversees all police personnel throughout the country. The IGP reports to the Minister of Law and Order, when the Police Service is under the Ministry of Law and Order as it is currently.