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Optical Cross in Refraction

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Пікірлер: 44

  • @mohan4019
    @mohan4019 Жыл бұрын

    A. +5.0/-3.50X90

  • @optometry-with-samir

    @optometry-with-samir

    Жыл бұрын

    You are right. Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.

  • @lotiveme3578
    @lotiveme35783 ай бұрын

    Thank you for explaining it so well!!

  • @optometry-with-samir

    @optometry-with-samir

    3 ай бұрын

    Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.

  • @laibazafar5999
    @laibazafar59994 ай бұрын

    What is the difference between progressive lenses and progressive glasses

  • @swagatooptom
    @swagatooptom21 күн бұрын

    Option A. +5.00/-3.50*90

  • @optometry-with-samir

    @optometry-with-samir

    20 күн бұрын

    @@swagatooptom You are right. Stay with us for more

  • @rajeshtripura725
    @rajeshtripura7255 ай бұрын

    Why not subtract working Distance power in this video? Or performed with WDP?

  • @optometry-with-samir

    @optometry-with-samir

    5 ай бұрын

    Here we are discussing about the mechanisms of Optical Cross.. Watch Details about "Retinoscopic Power calculation" here: kzread.info/dash/bejne/hoGBltuAkc-rmc4.htmlsi=M0PEBUgPlPBpGEeb

  • @shwetashah6609
    @shwetashah6609Ай бұрын

    WD subtract karna padega na ? Kaun sa procedure hai jisme WD subtract nhi karna pade😊

  • @optometry-with-samir

    @optometry-with-samir

    Ай бұрын

    Here, we are not discussing about Retinoscopic power calculation. Here we explaining how to convert spectacle power into optical cross and optical cross into spectacle power. Watch how to calculate Retinoscopic power in this video: kzread.info/dash/bejne/hoGBltuAkc-rmc4.htmlsi=PSOjZns9yiVsRBBr

  • @mdhedayatkhan960
    @mdhedayatkhan960 Жыл бұрын

    K1 is Horizontal meridian K2 is Vertical meridian.

  • @prasannashetty2526
    @prasannashetty252610 ай бұрын

    If u take +1.50 as a spherical value Than the ans is +1.50/+3.50@180 right?

  • @optometry-with-samir

    @optometry-with-samir

    10 ай бұрын

    Yes... you are right. Stay with us and share with you friends

  • @santhieswari8537
    @santhieswari85379 ай бұрын

    Sir we can choose the 4th one also am i right

  • @optometry-with-samir

    @optometry-with-samir

    9 ай бұрын

    Q-1: Answer is option A. +5.0 /-3.50 X 90. If we transpose it it will be +1.50/ +3.50 x180. So, option 4th is not right in both conditions. Please watch the again.

  • @mandeer8915
    @mandeer8915 Жыл бұрын

    +1.50Ds/+3.50×180

  • @optometry-with-samir

    @optometry-with-samir

    Жыл бұрын

    Correct Answer is option A. +5.0/-3.50 x 90° But with simple transportation your answer is also correct.....

  • @safaaalkhfaji7967

    @safaaalkhfaji7967

    11 ай бұрын

    Same results if you do transposition

  • @VivoVivo-ni6qe

    @VivoVivo-ni6qe

    10 ай бұрын

    A

  • @optometry-with-samir

    @optometry-with-samir

    10 ай бұрын

    @@VivoVivo-ni6qe You are right. Stay with us and share with you friends.

  • @sunrise6265
    @sunrise62658 ай бұрын

    599 Indian Rs? For DHA course? As i am from Pakistan

  • @optometry-with-samir

    @optometry-with-samir

    8 ай бұрын

    Indian rupees.. Download our App and explore the courses. That is made for Optometry students only. Further queries: samirsutradhar0@gmail.com

  • @katylewis7118
    @katylewis7118 Жыл бұрын

    Can you explain What serve bilateral ganglion cell depletion is please

  • @optometry-with-samir

    @optometry-with-samir

    Жыл бұрын

    Ganglion cell depletion in the retina can be caused by a variety of factors, both genetic and acquired. Some potential causes of ganglion cell depletion include: Glaucoma, Optic nerve diseases, Retinal Degeneration, trauma, aging, vascular disorder etc...

  • @katylewis7118

    @katylewis7118

    Жыл бұрын

    My son is 19 an his vision went blurry 8 months ago before this vision was perfect his vision is 6/240 in his better eye. Eyes are healthy he is having repeated tests to see if he as leber or cone dystrophy he had a prescription test and glasses won't help. his b12 and foliate test came back OK he is really struggling right now with this

  • @optometry-with-samir

    @optometry-with-samir

    Жыл бұрын

    @@katylewis7118 You said 8 months ago vision was perfect. How do you know his vision was perfect? Did you check his vision then(months age before vision starts blurry)? Write his spectacle power

  • @katylewis7118

    @katylewis7118

    Жыл бұрын

    @@optometry-with-samir He didn't have an eye examination but says he didn't struggle to see or read he passed his all his digger tests first time he was a apprentice groud worker and was able to read directional signs whilst having driving lesson. He went out one day and noticed he couldn't read street signs and this caused him to book a eye test he said everything Is blurry his optician said his eye are healthy and were concerned about what was happening behind his eyes. I don't know his specitcle power hs had a test which numbs his pupils and they said glasses won't help him

  • @optometry-with-samir

    @optometry-with-samir

    Жыл бұрын

    @@katylewis7118 You should consult with a retina specialist. Even if retinal issues are there vision therapy can improve his functional vision.

  • @yadavarti8743
    @yadavarti874310 ай бұрын

    Option A .-5.00/-3.50 ×90°

  • @optometry-with-samir

    @optometry-with-samir

    10 ай бұрын

    Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.

  • @MalikHaqiq-dv5me
    @MalikHaqiq-dv5me4 ай бұрын

    Why ans can't be C?

  • @optometry-with-samir

    @optometry-with-samir

    4 ай бұрын

    Watch the video again please... Axis is 90° apart from meridian that's why option C is not correct. Watch this video how to calculate Retinoscopic power: kzread.info/dash/bejne/hoGBltuAkc-rmc4.htmlsi=LjSMTpQNkthr2SVD

  • @Skgyan334
    @Skgyan334 Жыл бұрын

    Sir ETO me kitane form fill hua hai

  • @bobbee-pr
    @bobbee-prАй бұрын

    Did you already subtract with WD in the spherical meridian?? +4-1.50×90 ?? Nahi aata galat mat sikhau... Totally wrong.

  • @optometry-with-samir

    @optometry-with-samir

    Ай бұрын

    Here, we are not discussing about Retinoscopic power calculation. Here we explaining how to convert spectacle power into optical cross and optical cross into spectacle power. Watch how to calculate Retinoscopic power in this video: kzread.info/dash/bejne/hoGBltuAkc-rmc4.htmlsi=PSOjZns9yiVsRBBr

  • @firozahmed4916
    @firozahmed491610 ай бұрын

    +5.00/-3.50x90*

  • @optometry-with-samir

    @optometry-with-samir

    10 ай бұрын

    You are right. Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.

  • @sunrise6265
    @sunrise62658 ай бұрын

    DHA past papers py videos banai sir . Everyone watches those videos. The book is pretty expensive, i think 69$ but it will help a lot to poeple and to this channel. *Prometric Optometry book*

  • @optometry-with-samir

    @optometry-with-samir

    8 ай бұрын

    For DHA we have a course just in 599rs. Already 100+ students are preparing with that course and 10+ students passed the DHA exam with that course. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.

  • @EyeMD476
    @EyeMD4763 ай бұрын

    A

  • @shrutidas4231
    @shrutidas42316 ай бұрын

    À

  • @ejeemmanuelizekwe9893
    @ejeemmanuelizekwe989310 ай бұрын

    A

  • @optometry-with-samir

    @optometry-with-samir

    10 ай бұрын

    You are right. Stay with us and share with you friends.