Vision screening system

A method for screening for abnormalities in the field of vision of a test subject, comprising the steps of:

• presenting to said test subject a fixation target positioned on a colored planar surface, so that said test subject may focus a test eye on said fixation target and position said test eye a separation distance from said fixation target and align said test eye relative to said fixation target to enable testing of said test subject's peripheral vision by adjusting the distance and alignment of said test eye relative to said fixation target with reference to a blind spot mark so that said blind spot mark is in a blind spot area outside of said test subject's area of peripheral vision and is thereby removed from the test subject's field of vision when said test eye is positioned and aligned for testing;
• and
• presenting on said planar surface additional marks for detection by said test subject using the peripheral vision of the test eye, said additional marks being of low color contrast relative to said colored planar surface to form color contrast symbols, whereby the presence of eye disease is detected if said additional marks are not visible since the additional marks are presented with sufficient color contrast on the planar surface to be within the field of vision of a test subject's eye not having the disease.

A method for testing the central vision of a test subject, comprising the steps of:

• placing marks centrally on a planar surface, said central marks being of low color contrast relative to said planar surface;
• and
• determining sensitivity of said marks through direct viewing by said test subject through direct viewing of said marks.

A method for screening for abnormalities in the field of vision of a test eye of a test subject, comprising the steps of:

• focusing said test eye on a fixation target positioned on a colored planar surface;
• and
• determining the visibility of objects flashed on the colored planar surface in the peripheral field of vision of said test eye, said flashed objects being of low color contrast relative to said colored planar surface to form color contrast symbols, whereby the presence of vision abnormalities are detected if said flashed objects are not visible since said flashed objects are presented with color contrast on said planar surface so as to be within the field of vision of an eye not having any abnormalities.