Slit Lamp examination of the anterior segment of the eye 

Thanks

Thanks for the appreciation

Thanks for the appreciation, sir

Thank you for the appreciation

By Weiss ring I presume you mean the ring seen over the disc in posterior vitreous detachment. This does not have any particular "setting " required but you do need a fundus viewing lens like, for example, a 90 D indirect ophthalmoscopic lens or a contact lens like the mainster lens to be used along with the slit lamp. You could also view it without using the slit lamp by using a 20 D indirect ophthalmoscopy lens with a smartphone (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rB5Pk3y0Z-I.html)

contura vision is just a proprietory name for lasik which is wavefront guided and so whatever applies to lasik applies to contura vision

Not consistently. Sometimes epithelial or stromal edema may clue one to the presence of high IOP, similarly a Fundus view may show cupping or Retinal nerve fibre layer defects, but for reliably estimating IOP you need an applanation tonometer (like a Goldman tonometer)on the slit lamp

You may want to use dyes like fluorescein sodium which stain abraded areas of the cornea where the epithelium is missing, or you may want to use dyes like Rose Bengal or Lissamine Green which stain degenerating corneal cells.Sometimes you may want to use both together (differential staining) as in cases with dendritic ulcer to show both the denuded epithelium as well as the degenerating cells .

in PRK initially it is seen but after few months usually not seen. In a few cases subepithelial opacities may permanently remain

Yes

You might have a thin cornea seen in slit lamp causing them to claim so.

How thin is a thin corneal? Less than 450 microns ?

in smile surgery the scarring is more and it is almost always possible to see the interface on slit lamp exam. In lasik, scarring is less but still you will see the interface opacity in most cases but occasionally the scarring may be so minimal that it is not possible to see the interface or the circumferential scar easily

What about surface ablation surgery? Can that be detected with this ?

Usually the interface opacity can be seen.after some years it may blend in and be less visible

will use a better microphone for subsequent videos. Can't do much about the accent.

If you don’t understand the accent just read the captions bruh