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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.
The strength of the prism is increased until the streak of the light passes through the centre of the prism, as the strength of the prism indicates the amount of deviation present. The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens , which refracts light rays so that a point source of light is seen as a ...
Most parents are told to limit their kids' video game time, but one eye clinic is using video games to make eye exams more effective, and fun. Doctor uses Nintendo 3D video games to help detect ...
Glasses, surgery [3] Frequency. ~2% (children) [3] Strabismus is a vision disorder in which the eyes do not properly align with each other when looking at an object. [2] The eye that is pointed at an object can alternate. [3] The condition may be present occasionally or constantly. [3]
This is a list of notable educational video games. There is some overlap between educational games and interactive CD-ROMs and other programs (based on player agency), and between educational games and related genres like simulations and interactive storybooks (based on how much gameplay is devoted to education). This list aims to list games ...
Fraction Fever. Freddi Fish. Freddi Fish and the Case of the Missing Kelp Seeds. Freddi Fish 2: The Case of the Haunted Schoolhouse. Freddi Fish 3: The Case of the Stolen Conch Shell. Freddi Fish 4: The Case of the Hogfish Rustlers of Briny Gulch. Freddi Fish 5: The Case of the Creature of Coral Cove.
The Magic School Bus. Genre (s) Educational. Developer (s) Music Pen, Scholastic. The Magic School Bus is a series of educational software video games developed by Music Pen and published by Microsoft via their Microsoft Home brand. The interactive adventures are part of the larger franchise and based with The Magic School Bus original series ...
Ophthalmology. In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia. Even when the double vision images ...
The Oregon Trail is an educational strategy video game developed and published by the Minnesota Educational Computing Consortium (MECC). It was first released in 1985 for the Apple II, with later ports to DOS in 1990, Mac OS in 1991, and Microsoft Windows in 1993. It was created as a re-imagining of the popular text-based game of the same name ...