1. Eccentric Circles 2. Hart Chart 3. Bull’s Eye Near Focus 4. Brock String 5. Pencil Toppers/Pursuit 6. Accommodative Flipper Lens Rack 7. Life Saver Cards 8. Aperture Rule

It contains two cards that can be diaphanous (divergence) or not (convergence). In each lower corner of the cards are a letter as “A” and “B”. In the middle of the cards there is a bigger circle and in this there is a smaller circle and in the smaller circle there is a short word: CLEAR. The two cards are mirror images.

Eccentric Circles definition

These are designed for both base-in and base-out therapy and used to develop the positive and negative image fusion and it helps in the eye convergence and divergence.

Eccentric Circles purpose

Improving this skill will enhance the ability to do close work comfortably and can be helpful to patients who has convergence insufficiency and strabismus.

Eccentric Circles additional benefit

a grid of letters is placed at distance and one is held by the patient, near. The patient then reads a line close (or letter) then a line at distance. This is done with one eye occluded so the accommodative action is exercised as the eye focuses near then far.

Hart Chart basic setup

There are two charts of rows of letters, one small and one large. The patient typically stands 10 feet from the distance chart and holds the smaller chart in her hand.

Hart Chart structure

Specifically help to improve accommodative facility - the ability to increase and decrease our focusing on demand.

Hart Chart purpose

improves eye movement skills and builds strength, flexibility and stamina in the eyes' focusing system (known as "accommodation").

Bull’s Eye Near Far Focus purpose

This transparent card is derived from our test’s target, but has a more refined target to better control accommodation. Secondly, a large matrix of numbers and letters is below the chains to use as an accommodation target as well.

Bull’s Eye Near Far Focus description

Eye teaming.

Bull’s Eye Near Far Focus visual skill

consists of a white flexible cord or string approximately 10-15 feet in length, with colored wooden beads that can be moved to various positions along the length of the string.

Brock String definition

It is used to develop skills of convergence as well as to disrupt suppression of one of the eyes.

Brock String purpose

A pencil with a cartoon or any object fitted on top that can catch the attention of the patient especially children as we are working to develop smooth accurate eye movements with decreased head movements.

Pencil Toppers definition

These procedure mainly uses pencil but can also use a penlight as an alternative.

Pencil Toppers alternative

Pencil Toppers visual skill

Tracking skills (pursuits).

used to increase the speed and reduce the latency of the speed of response for patients that have difficulty shifting focus.

Accommodative Flipper Lens Rack purpose

The lenses here are of two types, a “plus lens” that allow the muscle to relax or do less work, and a “minus lens” that forces the eyes to work harder or put forth more effort than normal or focus.

Accommodative Flipper Lens types

Accommodative Flipper Lens visual skill

Accommodative facility.

Are used on patients who need to increase their ability to diverge without effort. Can also be used to train convergence.

Life Saver Cards purpose

Are an advanced procedure to improve binocularity and depth perception.

Life Saver Cards advanced function

It is a fusional technique. The patient is asked to look through a window in a slide at a series of targets placed at the end of the instrument. Each eye sees a different part of the target, and the patient learns to fuse the two images coming in from his left and right eyes into a single picture.

Aperture Rule definition

Helps improve low fusional and accommodative reserves, poor stereopsis, fixation disparity suppression and tight accommodation-conversion Relationship.

Aperture Rule benefit

Eccentric Circles Visual Skills

1. Accommodative facility 2. Eye teaming 3. Depth perception

Hart Chart Visual Skills

1. Tracking skills (saccades) 2. Accommodative facility 3. Eye teaming

Bull’s Near Far Focus Visual Skills

1. Tracking skills (saccades) 2. Accommodative facility 3. Eye teaming

Brock String Visual Skills

1. Eye teaming 2. Accommodative facility 3. Depth perception

Life Saver Cards Visual Skills

1. Accommodative facility 2. Eye teaming 3. Depth perception

Pencil Toppers/Pencil Pursuits

1. Tracking skills (pursuits) 2. Eye hand coordination (when patient is asked to touch the pencil as it moves) 3. Depth perception (when patient is asked to touch the pencil as it moves) 4. Eye teaming

Accommodative Flipper Lens Rock Visual Skill

1. Accommodative facility