Tadpole pupil: The eye is made up of the sclera, the iris, and the pupil, a black hole located at the center of the eye with the main function of allowing light to pass to the retina. Due to certain muscle spasms in the eye, the pupil can resemble a tadpole, which consists of a circular body, no arms or legs, and a tail.Flashlight: A flashlight or torch in British English, is a portable hand-held electric light. Usually, the source of the light is a small incandescent light bulb or light-emitting diode (LED).Task-invoked pupillary responseDilated fundus examination: Dilated fundus examination or dilated-pupil fundus examination (DFE) is a diagnostic procedure that employs the use of mydriatic eye drops (such as tropicamide) to dilate or enlarge the pupil in order to obtain a better view of the fundus of the eye.Exam Information Once the pupil is dilated, examiners use ophthalmoscopy (funduscopy) to view the eye's interior, allowing assessment of the retina, optic nerve head, blood vessels, and other features.Iris dilator muscleAnisocoriaGW-803,430: GW-803,430 (GW-3430) is a drug used in scientific research and is a selective non-peptide antagonist at the melanin concentrating hormone receptor MCH1. In animal studies it has anxiolytic, antidepressant and anorectic effects.Spasm of accommodation: A spasm of accommodation (also known as an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision.Adie syndromeSt. Vrain Valley School DistrictDeaf white catCyclopentolateAutorefractor: An autorefractor or automated refractor is a computer-controlled machine used during an eye examination to provide an objective measurement of a person's refractive error and prescription for glasses or contact lenses. This is achieved by measuring how light is changed as it enters a person's eye.Robert Atkyns (topographer): Sir Robert Atkyns (1647–1711) was a topographer, antiquary, and Member of Parliament. He is best known for his county history, the Ancient and Present State of Gloucestershire.Grow lightLogMAR chart: A LogMAR chart comprises rows of letters and is used by ophthalmologists and vision scientists to estimate visual acuity. This chart was developed at the National Vision Research Institute of Australia in 1976, and is designed to enable a more accurate estimate of acuity as compared to other charts (e.Cigarette smoking among college students: The rates of college students smoking in the United States have fluctuated for the past twenty years. Majority of lifelong smokers begin smoking habits before the age of 24, which makes the college years a crucial time in the study of cigarette consumption.Avo PhotonicsGlare (vision): Glare is difficulty seeing in the presence of bright light such as direct or reflected sunlight or artificial light such as car headlamps at night. Because of this, some cars include mirrors with automatic anti-glare functions.PresbyopiaKamaladalamAstigmatism: An optical system with astigmatism is one where rays that propagate in two perpendicular planes have different focus. If an optical system with astigmatism is used to form an image of a cross, the vertical and horizontal lines will be in sharp focus at two different distances.Ocular prosthesis