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Zaujímavosti o ľudských očiach

Napísal Lenka Kollerová 15. jún 2024

Oči sú jedným z najkomplexnejších orgánov ľudského tela a druhým najzložitejším, hneď po mozgu, s ktorým úzko spolupracujú. Naše oči sú úžasný systém, ktorý nám sprostredkováva životne dôležité informácie a umožňuje nám obdivovať krásu, ktorá nás obklopuje.

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Zdroj foto: Shutterstock

1.     Každý človek vidí vždy na jedno oko o trochu lepšie ako na druhé.

Ostré videnie zabezpečuje film na zadnej stene oka, ktorý prijíma svetlo prechádzajúce očnou šošovkou a nazývame ho sietnica. Premieňa svetlo na elektrické signály, ktoré sú vysielané do mozgu tak, aby dokázal pochopiť to, čo oko vidí. Stred sietnice sa nazýva žltá škvrna (makula) a jej dobrú kondíciu podporíte konzumáciou potravín žltej a oranžovej farby – paprika, mrkva, tekvica, ale aj paradajky či batáty. Prírodným zdrojom karotenoidov luteínu a zeaxanínu sú aj výživové doplnky Ocuvite**, ktoré boli vyvinuté na základe vedeckých výskumov. Zabezpečujú cielenú výživu očí a okrem spomínaných karotenoidov obsahujú aj vitamíny C a E, ďalšie minerály a zinok, ktorý prispieva k udržaniu dobrého zraku. Viac informácií nájdete na www.ocuvite.sk.

2.     Novorodenec plače bez sĺz. Slzy sa deťom začínajú tvoriť až vo veku okolo šiestich týždňov.

Slzný film je nesmierne dôležitý pre kvalitu a ostrosť videnia. Pre správne fungovanie očí je nesmierne dôležité, aby bol ich povrch stále vlhký. Ak tomu tak nie je, oči vysychajú, čo je sprevádzané nepríjemnými pocitmi až bolesťou. Ak vysychanie pokračuje bez nasadenia liečby, vzniká syndróm suchého oka, ktorý môže prerásť až do chronického zápalu oka. Úľavu od týchto nepríjemných príznakov prinesú umelé slzy Hyal-drop multi*, ktoré neobsahujú konzervačné látky, čiže sú vhodné aj pre citlivé oči. Roztok kyseliny hyalurónovej zabezpečí optimálne zvlhčenie vašich očí a počas dňa ich môžete používať tak často ako potrebujete. Viac informácií nájdete na www.hyal.sk.

3.     Rohovka je jediné tkanivo v ľudskom tele, ktoré neobsahuje krvné cievy. Je vyživovaná procesom difúzie a živiny a kyslík sa do nej dostávajú z vonkajšieho okolia.

Rohovka chráni celé oko. Je to vstupná brána oka, čiže mechanická a chemicky nepriepustná bariéra medzi vnútrom oka a vonkajším prostredím. Rohovka nemá v sebe ani jednu cievu, preto jej výživa prebieha vďaka dostatočnému prísunu kyslíka z vonkajšieho prostredia. Patrí medzi najviac namáhané časti oka vystavované vonkajším vplyvom a rizikovým úrazom. Čo je rohovke odobraté na cievach, to je jej pridané na nervových zakončeniach. Rohovka patrí medzi najcitlivejšie tkanivá ľudského organizmu, pretože má najväčší počet senzitívnych nervových vlákien. Aj preto jej traumatizácia, čiže narušenie - zranenie, spôsobuje nepríjemnú bolesť, po ktorej nasleduje reflexné slzenie a reflexné žmurkanie. Rohovka je zložená až z piatich vrstiev, čo je dôležité vedieť z hľadiska jej poškodenia a následnej liečby. Ak je trauma len na povrchovej (epitelovej) vrstve rohovky, ktorá sa rýchlo regeneruje, liečba trvá približne 1-3 dni a spočíva najmä v hydratácii očnej sliznice. Veľmi účinné v tomto prípade sú očné kvapky Desodrop* s iným mechanizmom účinku, založenom na hypromelóze (tvorba dočasného ochranného filmu), lipozómoch a ozonizovanom rastlinnom oleji. Vďaka unikátnemu zloženiu má Desodrop* antiseptický, hojivý a antibakteriálny účinok. Viac informácií nájdete na www.desodrop.sk.

4.     Hoci hlavnou funkciou sĺz je odstraňovanie nečistôt z rohovky a oka, odborníci doteraz nedokázali vysvetliť, prečo plačeme, keď sme smutní.

Čo vás naposledy doviedlo k slzám šťastia, dojatia či smútku? Nech to bolo čokoľvek, dobre si poplakať nikdy nie je na škodu. Pomôže to očiam aj našej duši. Ak vás však k slzám a smútku doháňajú alergény ako peľ, plesne, prach či zvieracia srsť, odporúčame radšej vyskúšať očné kvapky a nosový spej Vivdrin ectoin*. Majú prírodné zloženie a majú aj preventívny účinok. Očné kvapky proti alergii Vividrin ectoin* zmierňujú alergické začervenanie, slzenie aj svrbenie očí. Vytvoria na oku ochrannú vrstvu hydrokomplex, ktorá zabraňuje vstupu ďalších alergénov do oka. Neobsahujú konzervačné látky a preto ich môžete používať počas dňa tak často ako potrebujete. O nosovú sliznicu sa postarajte pomocou nosového spreja Vividrin ectoin*, ktorý zmierňuje svrbenie a výtok z nosa (nádchu), kýchanie a upchatý nos. Obsahuje prírodnú molekulu ectoin, ktorá chráni bunky, potláča zápal a stabilizuje bunkovú membránu. Viac informácií získate na www.vividrinectoin.sk.

Čo dodať na záver? No predsa ešte jednu pikošku o očiach, o ktorej ste určite ani netušili! Nie je možné kýchnuť s otvorenými očami. Vyskúšate?

produktova_foto_ocuvite

*Zdravotnícka pomôcka. Pozorne si prečítajte informáciu pre používateľa.

**Výživový doplnok. Výživové doplnky sa nesmú používať ako náhrada rozmanitej a vyváženej stravy.

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    By listening to your body’s signals and following a structured method, you presumably can safely return to powerlifting and achieve significant enchancment in your
    lifting efficiency. Throughout rehabilitation, it's crucial to focus
    on secure higher physique exercises that decrease stress on the shoulder.
    Many of these exercises involve lighter weights and higher repetitions, which can help improve
    recovery with out overloading the shoulder.
    The restoration course of after shoulder alternative surgery is a journey that spans
    a number of months. Initially, sufferers can count on 1 to four days of pain and swelling post-surgery.
    Gentle therapy exercises commence within the first two
    weeks, serving to to advertise mobility and forestall stiffness.

    Whole shoulder replacement surgery entails replacing the broken components of the shoulder joint with synthetic parts.


    The BUP is ideal for our wants as it reteaches great type whereas
    forcing you to make use of lighter hundreds. That could
    sound problematic, but the body doesn’t register how much you lift, solely
    how much pressure you generate. It is routinely apparent what
    must occur and the place the purpose of failure is. To avoid
    developing a chronic downside, it may be a good idea to talk
    with a well being care provider, bodily therapist, or
    occupational therapist about preventing further injuries.

    Shoulder abduction entails the glenohumeral joint and the scapulothoracic articulation.
    Take the shoulder press to the next degree with the bottoms-up press, a transfer that challenges your shoulder stability
    in new methods. By turning the bell the different way up, you now face a severe stability problem.
    To preserve the bottoms-up position for the bell, you'll now want to
    completely make certain your wrist is stacked instantly beneath your elbow.
    And if you finish the press, wrist and elbow
    should be directly beneath shoulder. Your aim is to get your smaller rotator cuff muscle tissue driving the movement.
    As A Substitute, MH fitness director Ebenezer Samuel says to add shoulder
    movements to your exercises when you're coaching different muscle teams or as
    one a half of full-body workouts. Your shoulders are some of the complex joints in your entire body.

    They find them a great purchase, reasonably priced furnishings moving straps, and helpful around the home.
    They find the development sturdy and the straps lengthy enough to deal with numerous duties.
    Some customers point out that the straps can help 5,000 pounds with out breaking.
    From sudden accidents to persistent conditions, Cleveland
    Clinic’s orthopaedic suppliers can information you thru testing,
    therapy and past. A bicep tendon tear can occur at either
    the shoulder or the elbow. A biceps tendon rupture means
    the tendon has torn away from the bone.
    This shoulder exercise listing will present clear pictures and simple explanations that will help you grasp shoulder anatomy and every
    exercise’s mechanics. When starting with shoulder training, terms like "Landmine Press" and "Dumbbell Clean and Press" can get
    slightly overwhelming. Hypertrophy ought to by no means be
    the only objective of full shoulder coaching.
    Explosivity is necessary to allow you to perform more athletically.
    In the Front Delt Raise variation under you’ll see you could take the arm again behind the body to stretch out the fibers within the
    front of the delt.
    Throughout this period, mild resistance exercises can aid in shoulder recovery.

    Focusing on proper type and relaxation intervals is important to stop re-injury when beginning to lift weights once more.
    As you possibly can see, it’s a big raise that engages a ton of overall muscle mass.
    If you’re doing lateral raises with fixed-weight dumbbells, for example, you may
    leap from 25 to fifteen to 10 to five-pound weights.
    By default, I advocate 2–4 sets of 10–15 reps carried out 2–3 times per week.

    The classic technique has you standing and elevating dumbbells out to your sides.


    Occasional use of this methodology effectively overloads your biceps and stimulates muscle development, but you need to solely use it sparingly for the best outcomes.
    Although not readily visible within the mirror, the rear delts play a crucial role in achieving well-rounded
    shoulder improvement. If the exercise still feels uncomfortable,
    or you would possibly be looking for an alternate, give the monkey row
    a look.
    Maintain stripping off the load as many instances as you like, even perhaps until you’re flapping empty arms.
    Past that, the most effective shoulder exercises also
    can make those duties of daily living that much easier.
    Like carrying all of your groceries in one trip, putting away dishes
    on the top shelf, and even catching yourself if
    you fall. Having strong, wholesome shoulders "makes us resilient to the activities of life that we’re going to come across," Cloer says.
    The scapular wall slide targets the shoulders, scapular, and higher back.

    Regardless of the game, a wholesome shoulder may have a high degree of stability between mobility and stability.
    When there is imbalance, whether or not in the
    energy of the shoulder muscles (i.e. anterior vs. posterior) or in stability vs.
    mobility, there's a greater risk of impairment
    or harm. The banded face pull plus pull aside combo is a great motion for
    anybody who's slumped over with poor posture that leads to their shoulders
    falling forward and rotating inward. The deltoid is a large muscle
    responsible for lifting the arm and giving the shoulder its range of movement.
    The bicep brachii is also susceptible to injury because it's connected to the
    scapula.
    The cable shrug is a variation of the shoulder shrug and one of the best higher lure 
    cable workout routines to build the upper back’s trapezius muscle.
    It is good for developing unilateral upper-body strength and bettering your steadiness and the strength and stability of your core.
    You can do that train using one arm at a time, permitting you to alter the vary of movement by adjusting the
    beginning or end place.
    Dumbbell lateral raise is a simple but effective exercise that can help you goal the shoulders, particularly
    the lateral or center deltoid muscular tissues. The finest shoulder workout for stopping shoulder accidents is the Overhead Band Press
    which is a shoulder activation exercise. This prepares the shoulder muscles
    to work together properly and should be carried out earlier than starting the the rest of your shoulder
    exercise. This quantity of shoulder power coaching gives you the best potential muscle progress positive aspects
    as a result of your shoulders need enough rest in order for the muscles to have
    the ability to repair and develop. Training shoulders 1-2 instances per week will help you construct robust broad shoulders.

    Depending on what brought on your ache, relaxation can mean taking a break from any
    activities that contributed to your harm. Keep Away From heavy lifting, reaching above shoulder height,
    and transferring into positions that worsen the pain. If you
    work in a job that requires overhead motions or heavy lifting, you may
    need to take day off or request a change in responsibilities.
    Your doctor might suggest preserving the affected shoulder nonetheless by placing it in a sling or different shoulder immobilizer.

    Incorporate particular workout routines to strengthen your rotator cuff muscles, corresponding to exterior
    and internal rotations using resistance bands
    or light dumbbells. A stronger rotator cuff supplies stability to the shoulder joint and
    can help stop pain and accidents. Bodily therapy performs
    a significant function in weightlifting post-surgery, helping sufferers in regaining energy, flexibility, and vary
    of motion, while lessening the possibility of re-injury.

    To mobilize the joint earlier than taking on larger lifts, add shoulder external rotations
    to the beginning of your shoulder workout. Setting the cable above head top
    will goal extra of the rear delts and rhomboids, whereas reducing
    the cable to go peak or simply under will place extra emphasis on the rear delts and
    traps. Isolating these posterior shoulder muscular tissues means much less weight is required to build power and size within the goal muscular tissues.
    If you wish to build your shoulders and work on your pressing strength however lack the mobility to press overhead, the landmine press is for you.
    So to ensure we're creating well-rounded shoulders, we’ll information you thru a selection of shoulder exercises, hitting completely
    different muscle tissue from different angles.

    With this numerous collection of shoulder workout routines extending beyond the essential
    routines, your shoulders will experience unparalleled energy, measurement,
    and definition growth.
    Read on to learn extra concerning the surprisingly complicated system that supports
    our arms, then use the 5 transfer warmup set to maintain your shoulders wholesome
    and robust. Exhale as you engage your core
    and push your hips forward, lifting the kettlebell behind you as you rise into a tall kneeling position. Here, I’ll clarify why the Dumbbell Front Increase is
    a move for higher aesthetics, improved power, and enhanced shoulder well being and mobility.
    This exercise is an isolation exercise that can help develop and develop the medial deltoid.

    Doing it with chest support further focuses on the middle fibers of the shoulder to grow.
    Or check out some Arnold Press different exercises if you want
    to try comparable choices. This isolation train can help grow and develop the medial deltoid, which is a tough muscle to develop.

    To take this shoulder exercise additional, contemplate
    incorporating entrance delt workouts. Let’s have a look at some of the high compound shoulder workout
    routines you should add to your routine to build your upper body.
    For this workout, you need a barbell, a set of dumbbells, a weight bench, and a cable pulley machine.

    Rear deltoid workout routines are key to any shoulder exercise routine as a
    result of they aim the muscles at the again of the shoulder.
    The rear delts enable shoulder extension and horizontal abduction,
    making them answerable for pulling actions and retraction of the shoulder blades
    in both train and daily life. Rear deltoid exercises include motions that particularly
    goal these muscle tissue, including however not limited to reverse flyes,
    face pulls, and rear deltoid raises. Cable shoulder workouts are a class of resistance training workouts
    that use cable machines to coach the shoulder muscles. Cable exercises typically permit for
    a higher vary of motion than traditional free weights.

    The exercise is consequently useful for building power and dimension in the shoulder muscular tissues, such as the deltoid, rotator cuff, trapezius, and rhomboids.
    Cable shoulder workouts contain a wide range of movements to target the muscular tissues of the shoulder.

    Shoulder activation is necessary to assist all these muscles
    work together properly and to keep away from shoulder accidents.
    A lot of individuals ‘forget’ to coach shoulders,
    don’t prepare them typically enough, or train them improperly.

    Also known as a pike push-up or down-dog push-up,
    this move is sort of a push-up for your shoulders; you're in a pike position doing push-ups.
    Here’s your go-to routine for increase big, respectable shoulders.


    This range of movement from a standing place means you’ll enhance
    core stability whereas also hitting the shoulders with an explosive
    raise. Perform dumbbell shrugs on days when you’re on the lookout for a
    workout that targets your shoulders, particularly your traps.
    Our train routines are created by determining one of the best workouts for muscle
    growth, core strength, and overall well being and well-being.
    This roundup of one of the best shoulder workouts will allow you to develop a shoulder workout that fits your
    fitness goals. Massive shoulders are a trademark of the best bodybuilders, however you don’t need to want to be Mr.

    Universe to concentrate on developing your shoulder muscles.

    Novices needn't get fancy or high-volume with shoulder training—especially
    in the occasion that they're already hitting their front
    delts with any significant amount of chest coaching. Hit these three
    strikes exhausting, nudge the weights up over time, and they can be enough to grow on.
    One of the largest issues folks have with overhead work for both urgent
    and pulling is an absence of shoulder stability. Our trade likes to pressure feed mobility fixes for stability
    issues, but the only place that will get athletes and lifters is chronically injured.

    Inherently, this recruits the forearms muscle tissue and the little shoulder stabilizer
    muscular tissues to activate and fire as nicely.

    The overhead press and lateral increase are each superb side-delt workouts.
    We’ve already coated the overhead press, so let’s delve into the lateral elevate.
    You Are probably beginning to see a pattern now
    with these isolation shoulder workout routines...
    Front raises look very related to lateral raises, however instead of focusing on the sides of the shoulders, frontal raises work the entrance of your shoulder by bringing the arms up in front of you.


    Via bracing your self through the carry, your core can also be engaged, aiding balance and stability.
    As the name implies, this train takes the chest flye and
    inverts the muscular tissues affected. If your goal is to bulk up, think about
    including these in future exercises. To make real positive aspects on your shoulders, you
    have to give them a centered exercise.
    Shoulder impingement syndrome is certainly one of
    the most typical causes of shoulder and higher arm ache, and is often current alongside other shoulder problems such as bursitis and rotator
    cuff tears. The labrum is a special layer of cartilage that
    traces the shoulder joint to assist enhance the soundness of the shoulder.

    With a torn shoulder labrum, as well as ache, there's typically instability.

    To effectively practice your shoulders, you have to incorporate a variety of
    exercises. This will let you target all the required
    muscle groups, including your back. The result's increased strength and higher definition throughout your higher physique.

    A average load ought to make up at least half of your workout and
    a heavy load the rest. Pike push-ups contain scapular protraction and retraction, which helps to strengthen and stabilize the muscular tissues across
    the shoulder blades. They will also enhance shoulder energy and
    flexibility, and provides the backs of your arms more definition.
    Arm Circles are a simple yet efficient bodyweight exercise that primarily
    targets the muscular tissues in the shoulders.

    The train helps build shoulder power and mass, enhance mobility and suppleness, and upper back strength.
    The Lateral Raise Machine is a particular piece of gym gear that helps isolate the deltoid muscle tissue, especially the facet delt.

    The vary of movement is managed, so you'll be able to goal these muscular tissues without
    having to work other muscle groups.