Single pass four throw pupilloplasty (SFT) is a technique of pupilloplasty, for iris repair and reconstruction. It uses a single pass, railroad technique to create a helical loop that is self-retaining and self-locking. SFT can be used in a wide variety of clinical situations such as a fixed dilated pupil, traumatic mydriasis, in case of optic capture and for retention of air bubble following PDEK. SFT can also be used to lower the intraocular pressure in situations such as silicone oil induced glaucoma. In this video, Prof Amar Agarwal takes us through 3 different clinical scenarios where an SFT was performed.
Pinhole pupilloplasty (PPP) utilises the pin hole optics that cuts off peripheral rays of light and allows only the central rays to pass through. PPP is useful in cases of high corneal astigmatism and higher order aberrations (HOA) such as corneal scarring, post keratoplasty, post corneal injury, keratoconus. In such cases, PPP improves both the quantity and quality of vision by reducing astigmatism and HOA. In this video, watch Prof Amar Agarwal perform PPP in this patient who had a sutured corneal tear and traumatic cataract.
Large non oppositional iris defects can cause significant glare and discomfort to the patients. In this video we show you the trifold technique of iris repair, which combines trocar assisted iris repair on either side along with a single pass four throw pupilloplasty. This technique can also be combined with other procedures such as Glued IOL and PDEK, thereby giving additional benefit.
Anterior chamber IOL's / ICL's can cause complications such as corneal decompensation, uveitis, glaucoma. Managing such cases can be tricky and needs expertise. Here we have a patient with an anterior chamber phakic ICL who went in for corneal decompensation and bullous keratopathy. His ICL was explanted, phacoemulsification and IOL implantation was done follwed by a PDEK along with pupilloplasty, all in one sitting. Watch this video to know how a meticulously done surgery can give highly satisfactory results, both for the surgeon and patient.
High corneal astigmatism and higher order aberrations hampering your patient's quality of vision ?!! Pinhole pupilloplasty ( PPP ) to your rescue ! Based on pin hole optics, that cuts off peripheral rays and allows only the central rays of light to pass through, PPP can effectively improve the quality of vision in such patients. In some cases, PPP can even obviate the need for a keratoplasty !! This video explains the principle and indications for a PPP, showing you how a cost effective, equipment independent procedure can significantly enhance the patients' quality of vision.
Pinhole pupilloplasty (PPP) uses the single pass four throw (SFT) technique of pupilloplasty to make the pupil approximately 1-1.5mm in size. Conditions associated with high astigmatism and aberrations are commonly encountered in our clinical practice. These conditions affect the patients vision quantitatively and qualitatively. PPP uses the pin hole optics that cut off peripheral rays and allow only the central rays of light to pass through thereby improving the patients vision. PPP also has the advantage of being an easily reversible procedure. Let us take you through this in-house innovation in this video.
Non appositional iris defects are often seen in cases of trauma and can cause significant glare and discomfort to the patients. The trocar assisted iridodialysis repair is a modification of Dr.Snyder's "hang-back" technique. Entrapment of corneal tissue during the hang-back technique is often encountered while maneuvering the needle. The trocar assisted technique overcomes this complication, wherein the lumen of the cannula acts as a guide for the needle. It also prevents unnecessary movement of the needle in the anterior chamber thereby allowing this procedure to be used in technically challenging situations. Watch this video to know more!!
Fine Tuning Pinhole Pupilloplasty Pupilloplasty gone wrong? Too large? Too small? Off centre? Results not upto your expectations? Fret not! Experience our own Prof Dr Amar Agarwal, a master in pupilloplasty take you step by step through fine tuning pupilloplasty in complicated cases. You can also find a bonus on the mechanics on how a pinhole actually works and various innovative instruments used to guide in this procedure in this video
We often encounter iris defects in our practice which can be secondary to trauma or sometimes iatrogenic. This can cause symptoms to the patient such as glare and diplopia. Single pass four throw pupilloplasty (SFT) is a technique of iris repair and reconstruction, that requires only a single pass, uses the rail road technique, and creates a helical loop configuration that is self-retaining and self-locking. SFT can also be used in fixed dilated pupil post-surgery. It has also been found beneficial in patients with angle closure glaucoma with synechiae where SFT pulls the peripheral iris away from the angle, breaks the synechiae and enhances aqueous outflow. It can also be used in patients undergoing glued IOL to prevent optic capture, and in patients undergoing PDEK for retention of air bubble in the anterior chamber. This video takes you through the surgical steps of performing an SFT.
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