Eye or Vision Anatomy of the eye- Eye is the organ of sense for sight ,which situated in the orbital cavity or eye socket Eye is the the spherical shaped organ in the sense which is help in vision or sensory vision . It's about 2.5 CM in diameter and three layers of the eye are completely covered There are three layer is- 1.Outer layer or tunica fibrous 2.Middle layer or tunica vasculosa 3.Inner layer or Tunica Nervosa 1.Outer layer or tunica fibrous- - Outer layer consists of two structure cornea and sclera . It is outermost avascular layer of eyes which preserve the shape of eye , A nteriorly consists of cornea and posteriorly consists of sclera. A. Cornea - Cornea is the outermost part of the eyes which is anteriorly transparent Court over the coloured Iris . cornea is convex cornea is convex,anteriorly light rays enter into the eyes through the cornea to focus on the retina . structurally cornea c...
Hyperkinetic disorder hyperkinetic disorder -::; it is also known as attention deficit hyperactivity disorder ADHD was first described by heinrich hoff in 1854. it is very common in boys and girls definition -:: it is behavioral and emotional disorders which is characterized by * hyperactivity *impulsivity *over attention or lack of attention main progress to conduct disorder etiology -:: *genetical factor-:: more common in monozygotic twins * biological factor -::disturbance in dopamine and norepinephrine level *environmental factor -:; environmental lead ,,, food additives,,, colouring preservatives and sugar * psychological factor -:: emotional problems ,,,stress full event,,,, family disturbance * pre peri and postnatal factor -:::prematurity,,,,, fetal distress ,,,,,prolonged labour,,,,, birth asphyxia low apgar scoring,, meningitis,,, encephalitis,,trauma,,, epilepsy clinical features -::: 1. most sensitive to stimuli like noise,,, light,,, temperatu...