Neurochromatic refractor

Abstract

An apparatus for use in determining a neurochromatic lens prescription. The apparatus includes an opening operable for use in a patient observing a visual target and a trial lens slot operable for use in inserting a trial lens into the patient's line of sight and the opening. The apparatus further includes a channel operable for sliding the trial lens into a centered position within the opening and a trial lens retainer operable for holding one or more trial lenses resulting in visual function improvement. The channel is coupled to the trial lens slot and the channel is operable for sliding the trial lens horizontally into the opening. The trial lens retainer is operable to retain the one or more trial lenses within the patient's line of sight.

1 . An apparatus comprising:
 an opening operable for alignment with a line of sight a patient observing a visual target;   a trial lens slot operable for use in receiving a trial lens into said line of sight and said opening;   a channel coupled to said trial lens slot, said channel operable for allowing sliding of said trial lens into a centered position within said opening, wherein said channel is operable for allowing sliding of said trial lens horizontally; and   a trial lens retainer operable for holding one or more trial lenses comprising a prescription for visual function improvement, wherein said one or more trial lenses are retained within said line of sight.   
     
     
         2 . The apparatus of  claim 1  further comprising:
 a phoropter bar opening operable for coupling a phoropter bar to said trial lens slot. 
 
     
     
         3 . The apparatus of  claim 2  wherein said phoropter bar is operable for coupling to a camera. 
     
     
         4 . The apparatus of  claim 3  wherein said camera comprises infrared functionality. 
     
     
         5 . The apparatus of  claim 2  wherein said phoropter bar is operable for coupling of corrective lenses. 
     
     
         6 . The apparatus of  claim 1  further comprising:
 a first slide stop and a second slide stop adjacent to each respective end of said channel, wherein when a first trial lens is in contact with said first slide stop, a second trial lens in contact with said first trial lens is centered in said opening. 
 
     
     
         7 . The apparatus of  claim 1  wherein said opening and said channel have metric dimensions. 
     
     
         8 . The apparatus of  claim 1  further comprising:
 a headrest for positioning said patient's head, wherein said headrest is coupled to said trial lens slot. 
 
     
     
         9 . The apparatus of  claim 1  wherein said opening is rectangular in shape and operable for accommodating viewing of said visual target through said opening with both eyes of said patient. 
     
     
         10 . A refraction device comprising:
 a trial lens channel for allowing sliding of a trial lens into a centered position within a line of sight of a patient, wherein said trial lens channel is operable for allowing sliding of said trial lens horizontally into said line of sight;   a trial lens retainer operable for holding one or more trial lenses within said line of sight;   a locking mechanism coupled to said trial lens retainer, wherein said locking mechanism is operable to clamp said one or more trial lenses into place; and   a base portion operable for providing support to said trial lens channel, wherein said base portion is operable for height adjustment of said trial lens channel.   
     
     
         11 . The device as described in  claim 10  further comprising:
 an opening operable for alignment with said lien of sight of said patient observing a visual target. 
 
     
     
         12 . The device as described in  claim 11  wherein said opening is rectangular in shape and operable for accommodating viewing of said visual target through said opening with both eyes of said patient. 
     
     
         13 . The device as described in  claim 10  further comprising:
 a phoropter bar opening operable for coupling a phoropter bar to said trial lens channel. 
 
     
     
         14 . The device as described in  claim 13  wherein said phoropter bar is operable for coupling of a camera. 
     
     
         15 . The device as described in  claim 13  wherein said phoropter bar is operable for coupling of corrective lenses. 
     
     
         16 . A device for use in determining a chromatic prescription, said device comprising:
 a channel for allowing sliding of a trial lens into a centered position within a line of sight of a patient, wherein said channel is operable for allowing sliding of said trial lens horizontally into said line of sight; and   a trial lens retainer operable for holding one or more trial lenses within said line of sight; and   a phoropter bar operable for coupling of a camera, wherein said camera is operable for recording a response of eyes of said patient looking through said trial lens.   
     
     
         17 . The device of  claim 16  wherein said phoropter bar is operable for coupling corrective lenses within said patient's line of sight. 
     
     
         18 . The device of  claim 16  wherein said phoropter bar is operable for coupling a target, wherein said target comprises an eye chart. 
     
     
         19 . The device of  claim 16  further comprising:
 a locking mechanism coupled to said trial lens retainer, wherein said locking mechanism is operable to lock said one or more trial lenses into place. 
 
     
     
         20 . The device of  claim 16  further comprising:
 a base portion operable for providing support to said channel, wherein said base is operable for height adjustment of said channel.