MEASUREMENT METHOD FOR DETERMINING A VALUE OF A VISUAL CORRECTION NEED FOR NEAR VISION OF AN INDIVIDUAL IN A NATURAL POSTURE FOR NEAR VISION

The invention is related to a measurement method for determining a value of a visual correction need for near vision of an individual in a natural posture for near vision wherein a recognizing limit distance is determined so that the individual is able to recognize at least one predetermined symbol...

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Bibliographische Detailangaben
Hauptverfasser: CARRIER, John, HERNANDEZ-CASTANEDA, Martha, BARANTON, Konogan
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The invention is related to a measurement method for determining a value of a visual correction need for near vision of an individual in a natural posture for near vision wherein a recognizing limit distance is determined so that the individual is able to recognize at least one predetermined symbol disposed farther than said limit distance relatively to the individual and unable to recognize said at least one predetermined symbol disposed closer to the individual than said limit distance, wherein a portable medium displaying said at least one predetermined symbol is displaced in front of the face and eyes of the individual to change a frontal distance between his/her eyes and the portable medium and in which when a recognizing limit distance is detected by the individual, said limit distance is measured and the value of the visual correction need is determined from said measured limit distance, wherein said visual correction need comprises an accommodation compensation need.