19 Comments

  1. i am student so i need (optometrist)so i need information about astigmatism and classification by meridian and refractive error ok by

    Tim Root: Ali, you may want to check out the Optics Chapter Video … it talks about astigmatism and meridians.

  2. Please expand on your comment that you use your trusty second instrument to protect against posterior capsular rupture. I was unaware that the Connor Wand was gentle enough to hold back the capsule by itself.
    Best,
    Alan

    Tim Root: I use the straight Connor wand almost exclusively for my second instrument. I wouldn’t rely on it exclusively to hold back the capsule, as the round tip is small and could bluntly rip through the capsule with any major surges (especially if there are any scratches on the end from mishandling).

    Instead, I spin the straight Connor 90 degrees, and hold it in this side position (see this drawing).

    I then hover my Connor tip under my phaco tip (and under the fragment I’m removing … as in this photo). If there is a surge, or the fragment phacos out fast, the connor keeps the capsule from billowing up into my phaco tip. This position is hard to maintain with the bent Connor as you can’t spin it in your fingers.

    In general, I think it best to NEVER touch the capsule with ANY instrument. I view the Connor wand as a final safety bumper … of the two instruments (Connor and Phaco Handpiece), it’s the one that is least likely to break the capsule. I was taught this safety technique during residency, and it’s saved me several times.

  3. dr
    ur work is really unique
    ur lectures are very informative
    i get a lot of knowledge from ur lectures
    and ur cartoons animation in lectures is very nice and informative

  4. i reuest
    plz also leave brief videos about complete pathology of eye on youtube
    such ac retinitis, ectesia , staphyloma, keratitis,conjunctivitis, scleritis,etc

  5. kieu thi thinh says:

    I like your web pages. When I have a time, I usually go there to find out more information I need in English for my career.
    Thank you very much for your helpful webpage.

    Sincerely yours,
    Kieu Thi Thinh

  6. maite letswalo says:

    im an optometry student and i rly find your site very helpful with anatomy of the eye and even more interesting is the pathology chapters, thnx the free knowledge

  7. hello sir, i am student and i want to know about how th perform refraction in refractie error patient, as myopic astigmetism, and hyperopic astigmetsism patient

  8. Anant V. Lakhotia says:

    Sir,
    I am a 2nd year student of Optometry (distance learning). Your lecture on Glaucoma, Retinoscopy and misaligned eye were very helpful. In fact Tropias and Phorias are clear now and I am doing Retinoscopy effectively now. Thanks a ton. One of my fellow senior student suggested JCC to be very effective tool for finding correct cylender and its axis, but he stays far off. I am unable to use JCC properly. Please help.
    Regards
    Anant

  9. try to make more animated ones more. to understand easily

  10. ranjit singh says:

    hi sir i have completed d.opt and pursuing b.opt distance pl help me some notes retinoscopy ane low vision aids. Thanks regarads ranjit singh

  11. Dear Dr.Root
    I am a medical student and have just finished the ophthalmology ward. My exam will be in three days and I regret that I haven’t find your site sooner!I wish I were one of your lucky students!thanks for every thing I learned from you 🙂

  12. tajammalhussain says:

    dear sir,
    I want to know about epephora(watering of eye
    please show us video about watering of eyes.
    thanks,
    Tajammalhussain,
    Ophthalmic tech;

  13. Dr. Root,

    Incredible, having fun while learning! I am the Director of Education at Houston Eye Associates and am putting together our own in house OA program. I too am trying to fuse learning with fun components so our students will remain engaged. Your videos will be a great addition. Thank you for being YOU! I am thrilled!
    Blessings,
    Jacq

  14. Mehdy Alnawfel says:

    Dear Dr. Root

    I’m a lecturer in an optometry department in Iraq and I’m interested about your “eye monster” that is used to recognize tropias and phorias.
    I really want to know how can I buy such tools for teaching students when there are no chances to have some patients for testing.

    Best Regards
    Mehdy

  15. Dear Dr. Root,
    I am a first year Optometry student. I love your videos. I just want to thank you for a great information you give in the videos. I learn a lot from there.
    I wish you have a great holiday season and make more videos for us.
    Kelly,

  16. thank you for give us all these information but i m resident dr. and i need to know more details about ophthalmology by video from you

  17. I am looking forward to updated videos and feature which are relevant to my job

  18. Dr. Root,
    this is very easy to learn

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