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    Improvements in or relating to visual performance and/or macular pigmentation
    11.
    发明专利
    Improvements in or relating to visual performance and/or macular pigmentation 未知

    公开(公告)号：IE20120309A1

    公开(公告)日：2013-05-08

    申请号：IE20120309

    申请日：2012-07-06

    Applicant: HOWARD FOUNDATION HOLDINGS LTD

    Inventor： NOLAN JOHN ,  BEATTY STEPHEN ,  LOUGHMAN JAMES ,  HOWARD ALAN ,  THURNHAM DAVID

    IPC: A23L1/00 ,  A61K31/00

    Abstract: A composition comprising xanthophyll carotenoid mesozeaxanthin (MZ) for use as a dietary supplement or food additive for oral consumption for improving the visual performance of a human subject, in particular, a human subject not experiencing age-related macular degeneration (AMD). Visual performance may be assessed by measuring one or more of spatial contrast sensitivity function, (best corrected) visual acuity, glare disability, discomfort glare, ocular straylight, photostress recovery and S-cone sensitivity. The composition may also comprise lutein and/or zeaxanthin. A preferred combination is MZ/lutein/zeaxanthin in the ratio 10:10:2. Additional components may include one or more vitamins and/or minerals; a vegetable oil, fish oil and/or omega 3 fatty acid. The composition may be in the form of an egg obtained from a hen fed with a feed comprising MZ. A method of preparing the composition comprising the step of mixing an effective amount of MZ with an acceptable dietary diluent, excipient or carrier is also claimed.

    Composition comprising meso-zeaxanthin for improving visual performance
    12.
    发明专利
    Composition comprising meso-zeaxanthin for improving visual performance 未知

    公开(公告)号：GB2492881A

    公开(公告)日：2013-01-16

    申请号：GB201211920

    申请日：2012-07-05

    Applicant: HOWARD FOUNDATION HOLDINGS LTD

    Inventor： NOLAN JOHN ,  BEATTY STEPHEN ,  LOUGHMAN JAMES ,  HOWARD ALAN ,  THURNHAM DAVID

    IPC: A61K31/047 ,  A23L1/30 ,  A23L15/00 ,  A23L33/15 ,  A23L33/155

    Abstract: A composition comprising xanthophyll carotenoid mesozeaxanthin (MZ) for use as a dietary supplement or food additive for oral consumption for improving the visual performance of a human subject, in particular, a human subject not experiencing age-related macular degeneration (AMD). Visual performance may be assessed by measuring one or more of spatial contrast sensitivity function, (best corrected) visual acuity, glare disability, discomfort glare, ocular straylight, photostress recovery and S-cone sensitivity. The composition may also comprise lutein and/or zeaxanthin. A preferred combination is MZ/lutein/zeaxanthin in the ratio 10:10:2. Additional components may include one or more vitamins and/or minerals; a vegetable oil, fish oil and/or omega 3 fatty acid. The composition may be in the form of an egg obtained from a hen fed with a feed comprising MZ. A method of preparing the composition comprising the step of mixing an effective amount of MZ with an acceptable dietary diluent, excipient or carrier is also claimed.

    FLICKER PHOTOMETER
    17.
    发明专利
    FLICKER PHOTOMETER 未知

    公开(公告)号：CA2283778C

    公开(公告)日：2007-08-21

    申请号：CA2283778

    申请日：1998-03-04

    Applicant: HOWARD FOUNDATION

    Inventor： BONE RICHARD ANDREW ,  ORTA CARLOS MANUEL ,  LANDRUM JOHN THOMAS ,  HUANG WENLUE

    IPC: A61B3/06 ,  A61B3/02 ,  G01J3/08

    Abstract: A flicker photometer comprises generating means for generating two beams of light of different colours. Both beams are directed to a viewing means and a subject can vary the intensity of light from one beam relative to other. The colour of the light seen by the subject is caused to alternate by a shutter which is rotated about an axis by a motor, the shutter having a portion which extends non-perpendicularly relative to the axis to facilitate a compact construction of photometer. The performance of the photometer is improved by screens which scatter light before it reaches the subject. A first of the screens reflects light from one beam, whilst a second screen transmits light from the other. If light of wavelengths to which the eye is less sensitive is passed through the second screen, whilst light of a wavelength to which the eye is more sensitive passes through the first screen, the screens help to make it practicable for the generating means to use a single lamp to produce the light for both beams.

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