Reduced eye of Listing, Emmetropic eye, and Ametropia

[@ishusingh7859]

I didn't understand the nodal point. U said at this point there won't be bending of light rays but then it could be any point after or before plane of refraction

[@VivekSirsPhysiology]

Nodal point is the point in any lens. Light rays passing through this point do not show refraction. They pass straight through it; do not bend. Our ability to see details depends on the angle subtended at the nodal point , rather than any other point before or after the plane of refraction.

[@sohailzaman6875]

Sir kindly upload the rest of the video too in which u disscus the errors of reflection... This video is ❤❤.. no words to thank u sir

[@iramsshah]

Sir, how do I thank you? You’ve truly saved my life, I was having a tough time understanding the vision, but all of my doubts have cleared now. Thank you 🙏🏻🙏🏻🙏🏻

[@VivekSirsPhysiology]

Iram S My Online teaching elsewhere has slowed down the frequency of uploads here at the channel. Nevertheless, I shall try and increase the frequency with which more topics are uploaded. Please suggest the topics, if any needed. Thanks again, Regards,

[@iramsshah]

Vivek Sir’s Physiology sir, I personally find the respiratory system a little hard as there’s some physics involved there, sir, if possible, could you please make a video on pressure differences in the lung and pleura? And also about the valsalva manoeuvre and how it affects the pressure? Thank you.

[@Optometrypearls]

I want to be teacher like you .I am on optometrist by profession .i admire Your lectures becoz very crisp and clear explanation with white board like class room

[@VivekSirsPhysiology]

Thanks for the comment. Replying to it late, though. The only reason that keeps me going relentlessly is the appreciative feedback given by students, which adds to my passion of teaching. Regards,

[@deekshatk956]

Thankyou so much very useful....please upload many more videos on physiology

[@pauljadon2107]

Nice video. Thanks.

[@shobhamehta9554]

Please complete vision physiology

[@preethi_9439]

Sir....could u please add the notes for remaining chapters in the physiology guru app...🙏🙏🙏

[@VivekSirsPhysiology]

Work in progress. Now i am uploading the notes in parts, instead of the entire chapters at once. Notes will come up regularly from now on. Thanks, regards,

[@preethi_9439]

Thank u very much sir!!

[@deekshatk956]

@@VivekSirsPhysiology can u pls tell where r u uploading

[@Educateoptometry]

Tq sir

[@VivekSirsPhysiology]

"Treasures & Secrets in Physiology" Ready to Study , NEOCORTEX PHYSIOLOGY NOTES are LIVE NOW on Official Website : www.physiologyguru.com/notes-2022 You can Purchase NOTES pdf with Ultra Shorts VIDEOS for better explanation by Author Dr. Vivek Nalgirkar Get 75% off on Every Notes Download First FREE Chapter : NEOCORTEX PHYSIOLOGY NOTES - www.physiologyguru.com/notes-2022?store-page=NEOCORTEX-PHYSIOLOGY-NOTES-BLOOD-p444248656 Also Follow us on social media : Instagram link : instagram.com/vivek.sirs.physiology/ Facebook link : facebook.com/VivekSirsPhysiology Telegram link : t.me/VivekSirPhysiology Quora link : viveksirsphysiology.quora.com/?invite_code=78ZBTkPc8RBuWmhwtqD7 Website : www.physiologyguru.com

[@Apratim98]

Sir,Is it true that a myopic eye(for e.g due to more corneal curvature) has a smaller least distance of distinct vision(D)? Because D is reached when lens reaches its max bulging capacity i.e when accommodation is max but since the eye is myopic so its has higher baseline converging power so it has to accommodate less than a normal eye for a object kept as the same dist., so more accomodation is left as object comes closer so better value of D?

[@VivekSirsPhysiology]

Sorry for the late reply. Yes that's right. However, it applies to a uniformly increased corneal curvature in a particular direction.

[@shiktatalukdar7837]

Sir i see flashes moving stars or moving bright dots and waves . What are this sir ? My doctor diagnosed my eyes that i have emmetropia in both eyes

[@VivekSirsPhysiology]

Emmetropia is normal vision. It is the normal visual acuity. Flashes of moving stars, dots or waves could occur occasionally due to contents of the ocular media, especially in the vitreous body. However, an Ophthalmologist can examine and can give proper opinion on this.

[@shiktatalukdar7837]

@@VivekSirsPhysiology i concerned with ophthalmologist they said nothing on it . They said not to focus on it . I checked my ratina as well. Ratina is okay . But still noticing statics. Sir is it something bad or normal or those static will fade away?

[@VivekSirsPhysiology]

If funduscopy or retinoscopy hasn’t found anything abnormal, then it can be ignored (as suggested by ophthalmologist). Follow up should be taken if its frequency increases.

[@shiktatalukdar7837]

@@VivekSirsPhysiology sure i will cope with doctors

[@Adam131-o8t]

wonderful lecturer !!!

[@chhavi2963]

👍👍

[@unsaunsa4748]

58D???

[@VivekSirsPhysiology]

This value varies from person to person. The range is :- 58 D to 61 D.

[@MissRozcollection1133]

qooo