| A | B |
|---|
| Tracking | the ability of the eye to move smoothly across a printed page or while following a moving object. |
| Fixation | quickly and accurately locating and inspecting a series of stationary objects, such as words while reading. |
| Focus Change | looking quickly from far to near and back without blur. |
| Depth perception | judging relative distances of objects - how far or near they are. |
| Peripheral vision | monitoring and interpreting what is happening in the surrounding field of vision |
| Binocularity | using both eyes together as a team - smoothly, equally and accurately |
| Maintaining attention | keeping focused on a particular activity while interference, such as noise, is present. |
| Visualization | accurately picturing images in the "mind's eye," eye retaining and storing them for future recall. |
| Near vision acuity | clearly, seeing, inspecting, identifying and understanding objects viewed within arm's length. |
| Distance acuity | clearly seeing, inspecting, identifying and understanding objects viewed at a distance. |
| Vision perception | understanding what is seen. |
| Confrontation Fields | performed to detect gross visual field loss |
| Tangent Screen | a black felt covered board that measures the central 30 degrees of the visual field. |
| Modified Thorington Test | a subjective method used to evaluate the presence, direction and magnitude of a phoria. |
| Jump Vergences | assess the dynamics of the fusional vergence system and the ability to respond over a period of time. |
| Fused Cross Cylinder | used to assess the accommodative posture of a patient while viewing a near target under binocular conditions |
| Farnsworth panel D-15 | identifies tritan (blue), deutan (green) and protan (red) color anomalies. |
| GTVT Chart | The purpose of the chart is to decrease ocular suppression and increase binocularity. |
| Pushup Amplitude of Accommodation | is used to subjectively measure the patient’s amplitude of accommodation under monocular conditions. |
| Minus Lens Amplitude of Accommodation | used to subjectively measure the amplitude of accommodation under monocular conditions while avoiding the relative magnification that affects the results of the pushup amplitude of accommodation method. |
| MEM Retinoscopy | used to evaluate the accuracy of the accommodative response, although binocular vision is also assessed |
| Monocular Accommodative Rock | The purpose is to improve the accommodative sufficiency and facility of each eye. |
| NSUCO Pursuits | used to assess the quality and accuracy of pursuit function. |
| Developmental Eye Movement | is an objective method used to assess fixational and saccade activity during reading and non-reading tasks |
| Standard Hart Chart Saccades | The purpose of the chart is to improve visual fixation skills which are most important in reading |
| Hart Chart Quad | The purpose of the chart is to improve the accuracy of large and small angle saccades. |
| Near Point of Convergence | The purpose is to assess the convergence amplitude. |
| Anaglyphs and Vectograms | The objectives are the same: to increase the amplitude of negative and positive fusional vergence, to decrease the latency of the fusional vergence response and to increase the velocity of the fusional vergence response |
| Aperture Rule | The objectives are to increase the amplitude of negative and positive fusional vergences, to decrease the latency of the fusional vergence response and to increase the velocity of the fusional vergence response. |
| Brock String – Pushup | The purpose is to develop the ability of the two eyes to aim at the same point and converge or cross. |
| Brock String - Pull Away | The purpose is to develop the ability of the two eyes to aim at the same point and diverge or uncross |
| Barrel Card | The purpose is to develop the kinesthetic awareness of converging and diverging, develop the ability to voluntarily converge, normalize the near point of convergence and improve convergence recovery ability |
| Lifesaver Cards - Convergence | The purpose is to increase the amplitude and velocity of the fusional vergence response, while decreasing the latency. |
| Eccentric Circles - Convergence | The purpose is to increase the amplitude and velocity of the fusional vergence response, while decreasing the latency. |
| King-Devick Test | used to assess the fixational and saccade activity during reading and non-reading tasks. |
| Cover Test | is an objective method of evaluating the presence, direction and magnitude of a tropia or phoria |
| Smooth Vergences | is the most common method used for assessing the amplitude of the fusional vergence response for both positive and negative fusional vergence |
| Step Vergences | The purpose is to evaluate the fusional vergence amplitude outside of the phoropter. |
| Pseudo-isochromatic Plates | The purpose is to determine acquired unilateral or bilateral color vision deficits, which occur with optic neuropathies, disorders of the optic chiasm and more infrequently with some occipital disorders |
| Stereovision Testing | is to subjectively evaluate the presence and degree of stereopsis using both global and contour (or local) targets). |
| Worth Four Dot | is a subjective test designed to evaluate the presence and size of the suppression scotoma and is considered to be one of the most accurate methods of evaluating suppression. However, the test is also capable of verifying diplopia |
| TV Trainer | The purpose is to decrease ocular suppression and improve binocularity. |
| Accommodative Facility | The purpose is to evaluate the stamina and dynamics of the accommodative response |
| Near Far Hart Chart | The purpose is to develop flexibility in the change of focus when looking near to far and far to near |
| Binocular Accommodative Rock | The purpose is to develop the speed and flexibility of accommodation when both eyes are working together. |
| Fixation Stability | Examination of eye movements involves three distinct steps: assessment of stability of fixation, saccadic function and pursuit function. |
| NSUCO Saccades | The purpose is a direct observation method that is used to assess the quality and accuracy of saccadic function |
| Spoon Pursuits | The purpose is to enhance fixation ability and increase peripheral awareness. |
| Post-it Saccades | The purpose is to develop smooth and accurate eye fixations while increasing peripheral awareness. |
| Michigan Tracking | The task is to find the letters of the alphabet and cross them off (or circle them) in order |
| McDonald Chart | The purpose is to increase peripheral awareness while concentrating on central vision. |
| Brock String – Jump Ductions | The purpose is to develop the ability of the two eyes to aim at the same point and to shift the eyes in a coordinated fashion from one point in space to another point, quickly and easily, without suppressing the information from either of the eyes. |
| Lifesaver Cards – Divergence | The purpose is to increase the amplitude and velocity of the fusional vergence response, while decreasing the latency |
| Eccentric Circles – Divergence | The purpose is to increase the amplitude and velocity of the fusional vergence response, while decreasing the latency. |
