Exam Review - COT Clinical Optics (with Complete Solutions)

Focal Length correct answers F.L. = 1 / Diopter Diopter = 1 / F.L (meters) Prism correct answers Δ = Diopter / Meters Diopters = Δ * Meters Meters = Diopters / Δ Prentices Rule correct answers Δ = (Diopters * decentration (mm)) / 10 Diopters = (Δ * 10) / dec (mm) dec (mm) = (Δ * 10) / Diopters Radius of Curvature (Contact Lens) correct answers Radius of Curvature (mm) = 337.5 / (K Reading in Diopters) K Reading in Diopters = 337.5 / (Radius of Curvature in mm) Radius of Curvature correct answers Radius of Curvature = (n - 1) / Diopters Diopters = (n - 1) / R Prismatic Power correct answers Δ = deviation (cm) / distance away (Meters) Δ = a (n -1) a = apical angle Snells Law correct answers n = sin(θi) / sin(θr) Vergence correct answers V = U + F V = 100 / v vergence of image (to the right of the lens/mirror in diopters) U = 100 / u vergence of object (to the left of the lens/mirror in diopters) F = 100 / f diopter value of lens or mirror v = 100 / V distance to the right (left for mirror) where the image forms (cm) u = 100 / U distance to the left where the object is (cm) f = 100 / F focal point of lens or mirror (cm) Back Vertex Power: (Ocular surface toward lens stop) correct answers Dioptereffective power = Diopterfront + Diopterback + (ThicknessMeters * (Diopterfront)2) / n Front Vertex Power: (Objective surface toward lens stop) correct answers Dioptereffective power = Diopterfront + Diopterback + (ThicknessMeters * (Diopterback)2) / n Immediately on either side of the visible spectrum are the invisible light segments of: a) Infrared and ultraviolet b) X-rays and radio waves c) Gamma rays and laser