Orthoptics literally means 'straightening of eyes". It refers to the diagnostic & therapeutic methods in the detection of & quantification of ocular deviation. 

The orthoptics clinic is a part of the Squint clinic & is equipped with

	Synoptophore which is used to measure the angle of thesquint, to measure the grades of binocular vision & give orthoptic & macular stimulation exercises.
	The hess screen is used to diagnose paralytic squints
	The RAF ruler is used for measuring convergence.
	Diplopia charting - In cases of paralytic squints the patient develops diplopia (double vision). This test charts the diplopia & helps in identification of the muscle involved.
	Prism bar testing. - For quantification of squints.
	TNO random dot test for evaluation of 3D vision.
	Maddox rod for detection & quantification of manifest & latent squints at distance fixation
	Bagolini striated glass test – to diagnose very small angle squints (microtropia). Also helps in sensory evaluation.
	Worth 4 dot test - sensory evaluation of squint