35results about How to "Improve visual acuity" patented technology

The present invention is directed to a transparent medium incorporating the oxidative polymerization product of 3-hydroxykynurenine, a synthetic version of the yellow-to-brown pigment that occurs in the ocular crystalline lens with age. Because this coloration in the ocular lens is believed to offer photoprotection to the retina, it may represent an ideal sun lens filter with an optical transmission spectrum that is compatible with the psychophysical and neurophysiological characteristics of the vision system.

An adaptive optics phoropter is aligned with a Badal optometer and an adjustable aperture component to subjectively determine an optimal vision correction as a power profile for an ophthalmic lens or ablating a cornea. The optimal power profile is preferably determined in an iterative process by adjusting the vergence of the Badal optometer and aperture size of the adjustable aperture component for power profiles with presbyopic power zones having different amplitudes, shapes, widths, and/or de-centering. Also included is a method of recursively computing a refractive surface with a regular presbyopic power zone (e.g., according to the optimal power profile) and adding it onto an underlying irregular Zernike-basis-set aberration-corrected surface in a linear fashion for fabricating an ophthalmic lens.

The invention relates to a lutein ester soft sweet and a preparation method of the lutein ester soft sweet. The soft sweet comprises 60-90% of sweet material, 0.01-10% of lutein ester micro-capsule or water soluble powder, 0.1-15% of gelling agent, 0.01-5% of sour agent, 0-10% of extract, 0-30% of concentrated juice, 0-0.5% of food flavor and 5-34% of water. The preparation method of the lutein ester soft sweet comprises the following steps of: a. sugaring off; b. gelling; c. mixing sugar liquid with gel liquid or gel peptone; d. adding lutein ester, the extract, the concentrated juice, the flavor and the sour agent into the mixed liquid; and e. preparing a finished product. The lutein ester soft sweet has health care functions of relieving visual fatigue, improving eyesight, preventing age related macular degeneration (AMD), and is good in mouthfeel, not glutinous, chewable and palatable in sour and sweet, thus being a healthy snack food; and the preparation method of the lutein ester soft sweet is simple, easy to operate and suitable for industrial production.

The present disclosure describes compositions which improve visual acuity and to methods for their use.

The invention provides a correction scheme based on enhanced light field display to patients with visual defects such as shortsightedness, farsightedness and early-stage glaucoma; and the correction scheme comprises a visual and depth information acquisition module, a dysopia modeling module and an enhanced light field display module. The visual and depth information acquisition module comprises two manners: with respect to the situation of a two-dimensional display, digital images are used as the input and the depth information is acquired; with respect to the real scenes, a binocular three-dimensional visual manner is adopted. The dysopia modeling module comprises a dysopia parameter setting module, an image degradation model and a light field calculating and processing module. The enhanced light field display module comprises two manners: with respect to the situation of the two-dimensional display, an internally integrated LCD (Liquid Crystal Display) visual display of the system is adopted; and with respect to the real scenes, the near-vision light field display module is adopted.

The invention provides compositions and methods for achieving storage stable aceclidine. The compositions preferably comprise aceclidine, a cycloplegic agent, a surfactant, a tonicity adjustor and optionally a viscosity enhancer and an antioxidant. The invention further provides methods for treating refractive errors of the eye with a storage stable aceclidine composition.

The invention discloses edible fortified tea oil for pregnant women and a preparation method thereof. The oil is particularly designed for Chinese pregnant women based on selecting tea oil of the first degree refined with natural camellia oleosa seeds with high quality, fortifies DHA (dehydroepiandrosterone), EPA (eicosapentaenoic acid), arachidonic acid, Alpha-linolenic acid and vitamin A, and ensures that n-6/n-3 fatty acid in food for pregnant women reaches the optimal 4:1. Fatty acids with different structures in the oil reach a theoretical balance, and can satisfy the requirement of pregnant women for vitamin A at the same time. The edible fortified tea oil for pregnant women contains no additive or flavor, and contacts no chemical solvent in processing and storage and contains no harmful trans-fatty acid or pesticide residue. The tea oil has a pure and delicate unique flavor and accords with state standards for edible tea oil.

A headlamp (1) includes: laser diodes (2)that emit excitation light; and a light emitting part (5) that emits light upon receiving the excitation light emitted from the laser diodes(2), the light emitting part(5) containing a first fluorescent material and a second fluorescent material, the first fluorescent material having its emission spectrum peak in a range of not less than 500 nm but not more than 520 nm, the second fluorescent material having an emission spectrum peak which is different from the emission spectrum peak of the first fluorescent material. In a spectrum of the light emitted from the light emitting part (5), a luminous intensity at the emission spectrum peak of the first fluorescent material is higher than a luminous intensity in an emission spectrum covering a range of not less than 540 nm but not more than 570 nm. This allows the headlamp (1) to emit illumination light which achieves a high visibility of an irradiation target at least in a dark place.

The invention relates to a process for extracting and refining anthocyanin in coarse rice, rice bran of black rice. According to the technical scheme, the process comprises the following steps of: extracting raw materials by using an acidic aqueous solution under the condition of keeping temperature, filtering, mixing extracting solutions, adsorbing by macroporous adsorbent resin, washing the resin by using water, desorbing by using an alcohol aqueous solution with appropriate concentration, concentrating a desorbed solution until the relative density is 1.1 to 1.2, and performing spray drying or vacuum drying to obtain an anthocyanin extract, wherein the content of the anthocyanin is more than 25 percent.

The invention discloses nutrient oil for preschoolers. The invention is characterized in that in case of carrying out calculation based on the masses of raw materials for producing 1 ton of the nutrient oil for preschoolers, and taking tea oil as a main raw material, the nutrient oil product contains 200-300 Kg of saturated fatty acids, 400-500 Kg of monounsaturated fatty acids, 250-350 Kg of polyunsaturated fatty acids, less than 50 Kg of trans fatty acids, 27-50 g of vitamin A, 400-800 mg of vitamin D, 13-20 g of vitamin E and 8-12 Kg of phytosterol. The nutrient oil disclosed by the invention is designed specifically aiming at the nutrition of Chinese preschoolers; and because of strengthening docosahexaenoic acids, timnodonic acids, arachidonic acids, linolenic acids, the vitamin A, the vitamin D and the vitamin E and adding the phytosterol, the ratio of n-6 fatty acid to n-3 fatty acid in daily food for the preschoolers achieves (3-4):1, and the fatty acids of various structures achieve an ideal balance. The product does not contain trans fatty acids which are harmful to a human body, has a pure and clear special flavor of tea oil, and conforms to the related national edible tea oil standards.

The invention relates to a beverage having the effects of improving eyesight and alleviating asthenopia. The beverage is prepared from blueberries and Chinese wolfberry fruits. The beverage disclosed by the invention has the health-care effects of improving eyesight and alleviating asthenopia, can be used for preventing asthenopia syndromes of healthy crowds, and can also be used for auxiliary treatment of asthenopia crowds.

The invention discloses a vision improvement training method. The method comprises the steps: collecting human eye information; selecting a predefined visual training type based on the human eye information; quantitatively evaluating the eyesight state according to the established eyesight influence indexes under different types of eyesight training; and performing vision training on the current vision state to obtain a vision training result. On the premise that the vision condition is changed without the help of glasses, ciliary muscles can be trained by combining the vision condition of a user, visual cells can be stimulated or awakened, eye muscles can be trained, the visual sensitivity is improved, and therefore the effect of training vision is achieved.

The invention discloses a rehabilitation instrument for physiologically correcting amblyopia, which comprises a shell, a sighting target, a sighting target driving device, a microcomputer controller and a modem, wherein the microcomputer controller comprises a singlechip, an input/output (I/O) port of the singlechip is respectively connected with a time selection switch, a program starting and resetting switch, a multi-path driving amplifier, a motor driving circuit and a sighting target displacement regulating switch, and the singlechip comprises a storage device which is used for storing multiple groups of optical spectrum transformation, optical intensity transformation and optical frequency transformation and controlling a motor to rotate forwards or rotate backwards or stop, thereby driving the sighting target to generate timing, speed regulation and front and rear regular transformation distance along a sliding chute. The instrument disclosed by the invention has a simple structure and is convenient to use; and by utilizing the microcomputer control technology, aiming at different cases such as myopic amblyopia, presbyopic amblyopia, strabismic amblyopia, astigmatic amblyopia and the like, corresponding rehabilitation schemes are adopted, so that the whole treatment process has strong pertinence, the correction cycle is shortened, and the treatment effect is obviously improved.

The invention provides compositions and methods for the treatment of presbyopia. The compositions preferably comprise aceclidine and a cycloplegic agent. The compositions optionally contain a surfactant, a viscosity enhancer, an osmolarity modifier and a preservative.

The invention relates to the technical field of food, in particular to infant formula milk powder containing xanthin and a preparation method thereof. The formula milk powder is prepared from, by weight, 20-45 parts of whole goat milk powder, 24-55 parts of demineralized whey powder, 0-15 parts of whey protein concentrate, 2-13 parts of lactose, 5-20 parts of mixed vegetable oil, 2-5 parts of galactooligosaccharide, 0.5-1 part of fructo-oligosaccharide, 0.1-0.5 part of calcium carbonate, 0.1-1 part of compound mineral, 0.4-1 part of multivitamin, 0.5-1 part of arachidonic acid (ARA) powder and0.5-1 part of docosahexaenoic acid (DHA) powder. The infant formula milk powder completely meets the nutritional requirements of growth and development of infants, and the infants can be assisted innourishing the brain, improving the intelligence and improving the visual acuity.

The invention discloses a bloodstain detection method having long wavelength chemiluminescence and fluorescence, and developing functions. The developing liquid of the method is prepared by mixing the water solutions of colourless fluorescein, luminol, hydrogen peroxide, sodium citrate and ethylene diamine tetraacetic acid. The visual sensitivity is enhanced and the visual luminescence time is prolonged by changing the chemiluminescence wavelength, meanwhile the stains with strong fluorescence are formed in the bloodstain area to develop the unsharp bloodstain shape. After the bloodstain search and the preliminary position are carried out by using the luminescence, the yellow-green fluorescence stain corresponding to the bloodstain shape can be observed on the bloodstain position detected in preliminary by the luminescence method under the natural light, the lamplight or the ultraviolet light, then the following accurate position of the bloodstain by using the fluorescence and the vision is realized to facilitate the recording of the bloodstain shape and the sampling. The method can be popularized and used in the criminal cases investigation.

Belonging to the technical field of fine processing of quinoa bran, the invention discloses an extraction method of grease in quinoa bran and application of the grease in food. The method has simple extraction process and high extraction efficiency, the extracted quinoa bran grease can be applied to the food field to prepare plant blend oil, thus increasing the utilization value of quinoa bran andenhancing the economic benefits. The obtained blend oil is rich in arachidonic acid and unsaturated fatty acid, wherein arachidonic acid is an important substance for the development of human brain and optic nerves, plays an important role in improving intelligence and enhancing visual acuity, has a series of physiological activities like esterifying cholesterol, increasing vascular elasticity, reducing blood viscosity, regulating blood cell function, etc., and has important efficacy on prevention of cardiovascular diseases, diabetes, tumors and the like.

The invention provides compositions and methods for the treatment of presbyopia. The compositions preferably comprise aceclidine and a polyol. The compositions optionally contain a cycloplegic agent, a surfactant, a viscosity enhancer, an osmolarity modifier and a preservative.

The invention discloses a contact lens care solution containing anthocyanin. The contact lens care solution consists of the following components in parts by weight: 4-6 parts of the anthocyanin, 4-6 parts of an extract of fruit of Chinese wolfberry, 3-5 parts of flos chrysanthemi, 8-12 parts of sodium dihydrogen phosphate, 15-25 parts of sodium chloride, 10-20 parts of (sodium) hydroxyethyl cellulose, 10-20 parts of taurine, 3-5 parts of polysorbate, 4-6 parts of citric acid, 10-20 parts of disodium edetate, 0.8-1.2 parts of vitamin A, 15-25 parts of glycerol and 200-400 parts of de-ionized water. According to the contact lens care solution provided by the invention, the anthocyanin, which is extracted from such natural crops as blueberries, mulberries and the like, can promote removal of toxic chemicals and free radicals from retinas, so as to improve microcirculation of eyes and enhance visual acuity. The contact lens care solution provided by the invention integrates effects of disinfecting, resisting bacteria and preserving health; and the contact lens care solution not only can take a basic nursing effect on contact lenses but also can achieve a function of protecting eyes; therefore, the contact lens care solution is especially suitable for modern people using computers in offices.

The invention discloses a composition for relieving asthenopia, as well as a preparation method and application thereof. The composition is prepared from the following raw materials by weight percent:7-15 percent of lutein, 1-4 percent of usnic acid, 8-17 percent of saccharomyces cerevisiae extract, 10-18 percent of crithmum maritimum extract, 5-11 percent of bamboo vinegar and the balance of auxiliaries. The composition can be used for effectively relieving asthenopia, is prepared from easily available raw materials, basically does not have toxic or side effect, has an effective rate for treating asthenopia being 96 percent, can be used for improving the visual level of patients with cataract and age-related macular degeneration and improving the visual acuity and central visual field ofpatients with retinal pigment degeneration, and has a high popularization value.

The invention provides intelligence-promoting milk powder capable of preventing myopia. Every 100 g of the intelligence-promoting milk powder contains 57.68% of instant whole milk powder, 35% of instant skimmed milk powder, 2.5% of concentrated whey protein powder, 2% of folium perillae powder, 1% of blueberry juice powder, 0.5% of fructus ligustri lucidi powder, 0.8% of semencassiae powder, 0.25%of herba senecionis scandentis powder, 0.25% of folic acid, 0.5% of phosphoryl serine, 0.5% of yeast beta-glucan, 0.5% of DHA powder, 0.16% of lutein ester powder, 0.06% of L-ascorbic acid, 0.05% ofacetylneuraminic acid and 0.05% of beta-carotene. According to the children formula milk powder provided by the invention, the phosphoryl serine, the DHA powder and the acetylneuraminic acid which aresuitable for growth and development of children are added, so that the children formula milk powder is close to breast milk to the greatest extent, and comprehensive nutrition is provided for children. Through addition of the folium perillae powder, the blueberry juice powder, the fructus ligustri lucidi powder, the semencassiae powder and the herba senecionis scandentis powder, the intelligence-promoting milk powder can help infants to promote intelligence, strengthen brain, nourish liver and protect eyes.