Spherical lens v/s Cylindrical lens | Lens identification made easy

[@Dr.Doaa11]

Very helpful &simplified, thanks too much

[@eishashoaib4728]

Who can someone be so perfect to convey concept every single time 🥹

[@InsightOphthalmology]

That's really sweet of you to say 😊

[@TheSingingSingh874]

Thanks

[@steffiroseprasad6051]

Maam, really love your videos Making concepts crystal clear ..

[@MukeshKumar-pj8re]

GOOD EXPLANATION MAAM...❤❤

[@sajid-khan77]

Very nice and informative but here I will ask for some extra explanation. Q1:what is the reason and concept behind the WITH and AGAINST motions of the concave and convex lenses respectively. Q2:in this video you have shown only convex cylinder and concave cylinder movements along their power meridian which is understood, my question is how to identify the movement in spherocylindrical lenses ie plus spher with plus cylinder, minus sphere with minus cylinder, plus sphere with minus cylinder and minus spher with plus cylinder.

[@InsightOphthalmology]

With and against movement can be explained by the way rays of light are focussed and the vergence of rays.Rays coming from the object through a concave lens are diverging rays and focus behind an observer so we see with movement. Contrary to that the rays from object on passing through a convex lens are more converging and focus before an observer .This gives against motion to the image. Now this is more easy to understand with visualisation You can try watching our video on retinoscopy basics to understand this principle 😊 kzbin.info/www/bejne/iZXEmmmEm9xpgrs

[@sajid-khan77]

@@InsightOphthalmology thanks for this

[@HananHan-y4l]

Very helpful video. Thanks Dr.

[@InsightOphthalmology]

Most welcome!

[@hamadmbarouk880]

Thank you so much dear Mom ❤️ It best lesson and u did well in elaborating, Mom I request you to share with us the cataract and blepharitis

[@idiwani5590]

Plz make a video on contact lenses😊

[@otiebrown9999]

Good review. Thanks

[@uzairjatt7065]

Please mam make video on cataract surgeries

[@bloodshredder1982]

Really insightful video

[@InsightOphthalmology]

Glad you liked it

[@TheSingingSingh874]

Thanks Dr👍👏

[@dilipdamordamor4520]

Govt job ke liye kuch Requirement rahti hai kya..

[@sk-fs2em]

Thank you somuch mam 😊

[@Priyachakma.R]

Explain so well ❤

[@InsightOphthalmology]

Thanks a lot 😊

[@malyajtiwari5793]

Thanks man

[@InsightOphthalmology]

No problem

[@musikaaffection8570]

thank u so much mam

[@skzubair0124]

Very deeply and easily explanation mam TQ for such videos.iam bsc optometry student

[@InsightOphthalmology]

Glad it helped :)

[@khaledking5408]

Thank you so much

[@InsightOphthalmology]

Soon

[@nadeem9692]

❤❤

[@cozwhynot58]

❤