Pozor na nočné šoférovanie, prekúrenú domácnosť či umelé osvetlenie

Napísal Michal Krajčír 04. december 2023

V zimnom období sme nútení tráviť viac času pri umelom osvetlení. Či už pracujeme do večerných hodín, pozeráme sa na televíziu alebo si pred spaním čítame knižku s lampičkou, nevedomky tým ubližujeme predovšetkým našim očiam. 

Viete, čo všetko môže zrak ohroziť a ako sa dá týmto nepríjemnostiam predchádzať?

Pre zimu je typický úbytok prirodzeného svetla. Každý deň je zhruba o štyri minúty kratší ako ten predchádzajúci. Slnečné svetlo je však pre ľudský organizmus veľmi dôležité a pokiaľ ho naše telo nedostáva, hrozí nám v kombinácii s nedostatočným alebo nekvalitným osvetlením pocit únavy, podráždenia či bolesť hlavy. Trpieť môžu aj oči. Ako unavenému zraku v tomto prípade uľaviť? Odborník radí, aby ste zaradili aspoň trikrát denne tzv. očnú jógu alebo jednoduché cvičenia. „Pokiaľ budete pravidelne hýbať svaly v oku, robiť krúživé pohľady rôznymi smermi alebo nahor a nadol, urýchlite tým látkovú výmenu v tomto okolí, čo má pozitívne účinky na náš zrak. Niekedy pomôže aj jednoduché pravidlo 20-6-20, teda robiť 20 sekundové prestávky s pohľadom na predmet vzdialený aspoň 6 metrov po 20 minútach práce s obrazovkou,“ radí odborný garant optiky FOKUS Martin Slaný.

Zlá viditeľnosť na cestách

Hmla, dážď, skorý západ slnka ale aj oslňujúce svetlá protiidúcich áut. Tieto podmienky majú vplyv na skryté očné vady, o ktorých možno ani neviete. Nebezpečné je to obzvlášť u vodičov, ktorí svojim chovaním na cestách môžu ohroziť nielen seba, ale aj ostatných účastníkov cestnej premávky vrátane chodcov. Kvôli nepriaznivému počasiu majú ich oči málo svetla na rozlíšenie vzdialeností, detailov či kontrastných farieb. Dioptrické slnečné okuliare s fotochromatickými sklami sú vhodnou voľbou, nakoľko sa prispôsobia svetelným podmienkam. Pri zhoršenej viditeľnosti sa preto musia zorničky rozšíriť. Tým však do oka preniká tiež väčšie množstvo lúčov, ktoré naviac prechádzajú i periférnymi okrajmi šošovky.

soferovanie_v_dazdi_1223

Prejavujú sa tak tzv. okrajové vady zraku, ktoré sú inak prirodzené. Patrí sem aj nočná myopia, ktorá môže zrak zhoršiť až o pol dioptrie. „Pokiaľ má človek podozrenie, že sa s touto vadou stretáva, mal by navštíviť očného lekára alebo optometristu. Dôležité je mať správnu korekciu dioptrií v okuliaroch alebo kontaktných šošovkách. Pomôžu aj špeciálne okuliare, ktoré majú tónovacie filtre a antireflexnú úpravu. Vhodné sú pre všetkých vodičov, pretože zvyšujú kontrast pozorovaných predmetov,“ opisuje Martin Slaný. 

Suchý vzduch v miestnosti

Keď sa teploty za oknom blížia k nule, sme za vyhriatu kanceláriu alebo domácnosť naozaj vďační. Bohužiaľ s vykurovacou sezónou súvisí aj suchý vzduch v miestnostiach, ktorý môže prispieť tiež k problémom s očami. „Pobyt vo vykurovaných priestoroch alebo presun z tepla do zimy môže spôsobiť tzv. syndróm suchého oka. Ten sa najčastejšie prejavuje pocitom suchých, podráždených a začervenaných očí, či opuchnutých viečok. Zaujímavé je tiež to, že aj keď môžu oči nadmerne slziť, ochorenie súvisí s nedostatkom slzného filmu, ktorý namiesto toho, aby oko zvlhčoval, odchádza v podobe sĺz,“ dodáva Slaný. Rýchlu úľavu preto prinesú tzv. umelé slzy, ktoré efektívne regenerujú spojivky a zabraňujú vysychaniu očí.

Čítanie knihy v šere

Nadchádzajúce večery sú ako stvorené na to, aby sme sa natiahli na sedačku, zababušili sa do deky a so šálkou horúcej čokolády hltali riadky obľúbenej knihy. Problémové však býva osvetlenie. Zatiaľ čo príliš ostré svetlo nie je vhodné pre večerné chvíle, pretože klame organizmus zdaním, že je ešte deň, čítanie v pološere vyžaduje väčšiu námahu zraku, aby oko mohlo vykonávať svoju funkciu. Výsledkom tak môže byť začervenanie očí alebo bolesť hlavy. Ideálne osvetlenie pri čítaní býva približne 300 lúmenov. Pre deti je lepšie zvoliť silnejšie svetlo, teda zhruba 500 lúmenov.

citanie_v_sere_1223

Avšak bez ohľadu na to, či je svetlo tlmenejšie alebo jasnejšie, tým ako človek starne, najmä po 45. roku života trpí presbyopiou, teda očnou vadou, pri ktorej máme problém zaostriť na blízko. Riešením sú tzv. čítacie okuliare. „Pri výbere okuliarov sa zverte do rúk lekára či optometristu. Rozhodne neodporúčam kupovať dioptrickú pomôcku v obchodných reťazcoch, pretože tie nie sú vhodné na dlhodobé nosenie. Každé oko je odlišné a vyžaduje inú dioptriu a vycentrovanie šošovky,“ upozorňuje Martin Slaný.

Modré svetlo moderných technológií

Tým, že trávime viac času doma, krátime si voľné chvíľky nielen brázdením na internete, ale tiež sledovaním televízie či hraním počítačových hier. Displeje týchto chytrých zariadení vyžarujú modré svetlo, ktoré je podobné tomu slnečnému. Vďaka nemu dochádza k vyplavovaniu hormónu serotonínu, ktorý nás udržuje aktívnymi. Narúša tým ale spánok aj celkový biorytmus človeka.

sledovanie_mobilu_v_tme

„Okrem toho, že si na notebooku alebo mobilnom telefóne môžete nastaviť príjemnejšie žlté svetlo, oplatí sa investovať tiež do tzv. blue filtrov, ktoré sa jednoducho aplikujú ako povrchová úprava na okuliarové šošovky. Ďalšia možnosť sú potom úľavové kontaktné šošovky, ktoré odporúčame zákazníkom v produktívnom veku. Fungujú na princípe predĺženia zrakovej ostrosti pri striedaní pohľadu na stredné vzdialenosti a na blízko, čím, jednoducho povedané, uľavujú preostrovaniu medzi týmito dvomi vzdialenosťami,“ vysvetľuje Martin Slaný.

71 komentárov

  • Komentár anadrol steroid pills %AM, %20 %136 %2025 %02:%mar napísal anadrol steroid pills

    The condition won’t go away by itself, however our professional orthopedists at Complete Orthopaedics can diagnose your condition and get you
    began on the path to healing. Schedule an appointment with certainly one of our orthopedic specialists
    right now. A rotator cuff tear impacts the muscle tissue and tendons that cowl your
    upper arm bone, keep it within the ball-and-socket shoulder joint, and assist you to raise and rotate your arm.
    The stress of weightlifting can cause a tear because the tendon degenerates over time.

    Plus, many lifters merely discover it extra friendly
    to their shoulder joints. The front raise is an anterior deltoid isolation train, and you may perform
    it with a barbell, dumbbells, and even only a weight plate.

    Generally accidents or pain result within the creation of incredible
    train alternate options or variations to the standard main lifts we would like to carry out (but
    can’t due to pain). In the case of a bothersome shoulder, you’ll see a number of urgent variations that may regularly be doable even within the presence of a nagging shoulder concern.
    Arnold presses interact multiple shoulder muscular tissues, including the deltoids
    and trapezius, helping you develop a more well-rounded shoulder form.

    You won’t be able to use as a lot weight in a single-arm row as when utilizing a
    barbell. Instead, dumbbell rows let you get a
    full vary of movement, which could profit muscle growth. It’s also
    a superb train to build and preserve an excellent posture,
    strengthening the muscular tissues wanted to retract your shoulder blades to forestall
    slouching. These are all legitimate variations of the barbell row, however for
    StrengthLog’s back and shoulder workout routine,
    you’re going again to old-school basics. Stand comfortably together with your toes shoulder-width and
    holding the bar with an overhand grip and your palms just outdoors the width
    of your knees.
    In contrast, the group who only stretched had 
    higher low back instability and hip flexibility (5).
    Weightlifting is one of the most damage susceptible sports because of the excessive a nice deal of resistance.

    To assure security and an excellent high quality follow, it’s important
    to have a stable foundation. In a patient with neck ache
    or pain that radiates beneath the elbow, a
    helpful maneuver to additional evaluate the cervical backbone is Spurling's test.
    The affected person's cervical backbone is placed in extension and the head rotated toward the affected shoulder.
    Pace's maneuver is used to examine the proximal tendon of the long head of the
    biceps.
    There are three "heads," or components, to the deltoids,
    certified power and conditioning specialist Brad Cloer, MS, CSCS,
    proprietor of Futureproof Fitness in Atlanta, tells SELF.
    There’s the anterior (front), medial (side), and posterior (rear), he explains.

    Many lifters struggle with their shoulders and expertise stiffness or limited mobility.

    The journey to resuming powerlifting after shoulder replacement surgical
    procedure is a complex but rewarding. This guide has supplied a
    comprehensive overview of the steps needed to make sure a safe
    and efficient return to lifting weights. Monitoring ache
    levels during workout routines helps establish potential
    issues. If discomfort or sharp ache happens, cut back the depth and consult with a healthcare professional.
    Avoiding heavy lifting and exercises that strain the shoulder is
    crucial for minimizing the danger of re-injury. Sufferers mustn't carry weights until they obtain medical clearance,
    usually around 4-6 months after surgical procedure.

    The problem with attempting to change your mechanics is that you’ll typically create much more problems.
    Many people, including athletes, may must decrease the
    intensity and length of their workouts or sports activities practices whereas their shoulders heal.
    Like many other muscle tissue, the deltoid could be sore for quite so much of causes,
    together with overuse and tendon accidents. Two of
    the best treatments were stretching and strengthening the
    hips and core. These therapies resulted in much less ache
    and incapacity ranges, together with improved steadiness and high quality of life.

    If left untreated, the tendon may even tear – see the rotator cuff tear part for more information. The best dumbbell
    shoulder workouts use a variety of exercises to hit all
    3 heads of the deltoid. Beneath, I will show you what an example energy day and hypertrophy day could seem like.
    A single-arm dumbbell row is amongst the best dumbbell shoulder workout routines due to how many muscles it hits.

    There are many causes of shoulder ache and different remedy strategies for each.
    This occurs when irritation and scar tissue invade the shoulder joint
    inflicting stiffness and a progressively worsening uninteresting, aching pain.
    It Is estimated that as much as 70% of people will
    expertise shoulder ache at some point. The answer comes down to the shoulder's distinctive construction, the fixed calls
    for positioned on it, and varied threat components.
    Read on to learn to do each exercise with skilled tips, units,
    reps, and the precise muscle tissue labored with each train. If you've persistent
    signs, regardless of the utilization of oral anti-inflammatory medication, your physician may consider a cortisone-type injection.
    For this exercise, which has a robust focus in your traps,
    it’s recommended that you do 4 – 12 sets per week. In phrases of
    weight load distribution, 50% of your exercise must be divided between mild and
    heavy weights. The monkey row is one of the best shoulder exercise you’ve
    never heard of. An old-school favourite, the monkey row is
    a variant of the upright row but without the potential stress on the shoulder
    joint or wrists. For your first train of StrengthLog’s again and shoulder
    workout, you can choose between pull-ups and the lat pulldown, both wonderful workout routines for
    building a wide upper again.
    Customers discover the cargo straps helpful for moving massive furnishings and
    heavy items. Opinions differ on ease of use, worth for money,
    strap size, and comfort. From the surface, the shoulder seems like a
    simple joint —but it’s actually one of the complicated joints in the body.
    Maintain your shoulders, ribs and hips stacked over your knees without arching your again. Maintain the
    kettlebell with straight arms, keeping your shoulders open.
    One of the first causes for shoulder pain is improper lifting technique.

    When you don’t use the proper form, you set pointless stress on your shoulder joint and
    its surrounding buildings. This can result in strains, irritation, and much more extreme injuries over time.

    However you don’t need to be knowledgeable athlete to develop this situation. A direct blow to
    your shoulder area or falling on an outstretched arm can also trigger shoulder tendonitis.
    Maintaining an in depth eye in your progress is significant when weightlifting post-shoulder alternative surgical procedure.

    They say they work properly for transferring furniture and enormous objects like mattresses and
    field springs. Some customers mention the straps are too short for sure jobs,
    however overall they find them helpful and helpful for moving gadgets.
    AAOS doesn't endorse any therapies, procedures, products, or physicians referenced herein.
    This information is provided as an academic service and is not supposed to function medical
    advice. Anybody in search of specific orthopaedic advice or help ought to
    seek the guidance of his or her orthopaedic surgeon, or find one in your space
    by way of the AAOS Find an Orthopaedist program on this website.
    This illustration of the shoulder highlights the
    main elements of the joint.
    For supported incline dumbbell rows to be effective, aim for four –
    12 units per week. In terms of weight hundreds per rep vary,
    25% of your exercise should include gentle and heavy hundreds respectively.
    However, it additionally takes a lot out of you and isn't necessary if you’re coaching for muscle hypertrophy.
    It is excluded from the workout to enhance your total recovery and let you go all-out on extra hypertrophy-specific again workouts.
    For best outcomes, leave your ego exterior the gym and choose a pair of
    dumbbells that allow you to carry out the exercise with proper
    kind and get a good mind-muscle connection.
    The motion you’re going to be focusing on is an overhead
    push press at around 50-70% of your bodyweight. No Matter you choose, each minute you’re going to blast your
    weight overhead earlier than slowly reducing it back
    to your shoulders under management. In my work with skilled baseball teams over the previous two decades,
    I’ve seen firsthand how well-intentioned stretching can sometimes do more hurt
    than good. However over time, mobility experts realized this stretch was making the shoulder joint excessively free and unstable,
    rising damage danger somewhat than stopping it. If
    you really need to focus in your shoulders, it’s vital to make a point
    to hit all three elements of them.
    Most shoulder workouts get defined into singular planes of motion and isolated muscle of the
    shoulder. For example, the front raise is doubtless one of
    the most common shoulder workouts and is isolated primarily to the sagittal
    plane and targets the anterior portion of the
    deltoid. One Other well-liked shoulder train is the lateral shoulder elevate which additionally isolates a single airplane of movement, the frontal airplane.
    I assume this highlights one of the key issues that folks run into when coaching the shoulder, they largely train it in isolate planes of motion while isolating subsets of
    the shoulder muscular tissues. In any sport or
    other dynamic motion in life we work by way of several planes and interact several totally different muscular tissues of a joint
    at once. It could also be clever to incorporate
    workouts that mimic this in your coaching.
    And there are also the ones that connect to the scapula (shoulder blades), including your rhomboids and trapezius.
    Scapular wall slides don’t simply improve your shoulder
    mobility; this train can even strengthen your mid and lower traps.
    This lets you raise heavier weights, improve your lifting capacity for other exercises like overhead presses, reduce accidents, and enhance
    your posture. Shoulder mobility is important for
    performing practical movements successfully.
    That stated, the optimal shoulder-training tools
    varies based on your power, build, flexibility, and health.
    You should prioritize proper kind and safety regardless of the exercise you perform to have
    the ability to stop accidents or a plateau
    in your progress. Below we cover the method, mechanics, and advantages of an important shoulder raises.

    The overhead press is amongst the finest shoulder workout routines and one of the most efficient higher body exercises for muscle strength and hypertrophy.
    It emphasizes the front side components of your deltoids, leading
    to total shoulder mass and width. If you’re experiencing shoulder ache, it’s crucial to offer your shoulders enough time to rest and recuperate.

    These could be labored by way of isolation work or practicing
    one other sport. The extra variety put in the path of weightlifting, the extra the whole physique will become
    more linked and stronger. The safest methods to forestall this type of injury is through correct preparation and method.

    External rotation actions can put together the upper body to open up through the contraction. To summarize,
    as long as the bar doesn't fall beneath chest-level throughout contraction, the pecs and shoulders will remain safe.

    Feel free to rearrange the train order if you don’t get pleasure from a selected superset combination or find it too
    exhausting. Your back muscles are a variety of the largest and strongest muscular tissues in your body
    and require plenty of hard work and sweat to develop. However, the hassle is value it, as
    a muscular again immediately stands out and demands attention. Shoulder impingement typically happens
    due to an individual overusing the shoulder.

Napísať komentár

Uistite sa, že všetky požadované (*) polia ste vyplnili. HTML kód nie je povolený.

Ladiaca konzola systému Joomla!

Sedenie

Informácie o profile

Využitie pamäte

Databázové dotazy