STEPS AND COMPLICATIONS OF CATARACT SURGERY.pptx

steps and complications of cataract surgery

1. STEPS AND COMPLICATIONS OF CATARACT SURGERY

2. PRINCIPLES OF CATARACT SX

3. STEPS BRIDLE SUTURE AND CONJUNCTIVAL FLAP

4. TUNNEL CONSTRUCTION EXTERNAL SCLERAL INCISION SCLEROCORNEAL TUNNEL INTERNAL CORNEAL INCISION

5. CAPSULOTOMY CAN OPENER CCC

6. HYDROPROCEDURES HYDRODISSECTION HYDRODELINEATION

7. PROLAPSE OF NUCLEUS INTO THE ANTERIOR CHAMBER NUCLEUS EXTRACTION: Phacosandwich phacofracture

8. CORTEX ASPIRATION AND IOL IMPLANTATION WOUND CLOSURE

9. INTRAOPERATIVE COMPLICATIONS INCISION RELATED BUTTON HOLING PREMATURE ENTRY SCLERAL DISINTERATION

10. DESCEMET MEMBRANE STRIPPING ON ENTRY CONJUNCTIVAL HYDRATION PARACENTESIS

11. CAPSULOTOMY RELATED RUNAWAY RHEXIS HYDRODISSECTION RELATED: INADEQUATE CORTICAL CAPSULAR BAG SEPARATION FLUID MISDIRECTION SYNDROME ZONULAR DAMAGE POSTERIOR CAPSULAR TEAR

12. NUCLEUS PROLAPSE CHALLENGES INCOMPLETE HYDROPROCEDURES SMALL RHEXIS MID IRIS SYNECHIAE VERY SOFT NUCLEUS HARD BROWN WOODEN NUCLEUS SMALL PUPIL

13. HYPHEMA IRIS INJURY IRIDODIALYSIS IRIS PROLAPSE INTRAOPERATIVE MIOSIS ZONULAR DIALYSIS POSTERIOR CAPSULAT TEAR RESIDUAL CORTEX DROPPED NUCLEUS EXPULSIVE HAEMORRHAGE

14. POSTOPERATIVE COMPLICATIONS IMMEDIATE: WOUND LEAK IRITIS INCREASED IOP

15. LATE COMPLICATIONS CORNEAL DECOMPENSATION UVEITIS CAPSULAR BAG COMPLICATIONS IOL MALPOSITIONS POSTERIOR CAPSULAR OPACIFICATION CYSTOID MACULAR EDEMA ENDOPHTHALMITIS

16. ANAESTHETIC TECHNIQUES AKINETIC TECHNIQUE: Needle based:Retrobulbar,Peribulbar Cannula based:Subtenon’s NonKinetic technique: Topical + intracameral Topical+subconjunctival

17. Modern Retrobulbar block Eye-Neutral position Site of insertion of needle-extreme corner Needle direction tangent to globe After passing equator-needle is turned medial and upward 2-4ml of LA solution injected Site of entry is inferotemporal quadrant

18. Modern Peribulbar block Eye in primary gaze,23G needle,25mm in length, bevel up Needle passed through the inferior eyelid skin Parallel to the plane of inferior orbital wall No angulation Once the equator of globe is crossed-negative aspiration 4-5ml of LA is injected.

19. TOPICAL ANAESTHESIA ANAESTHETIC EYEDROPS 0.5% PROPARACAINE 2-4% LIGNOCAINE

20. COMPLICATIONS NEEDLE BASED TECHNIQUES: Retrobulbar haemorrhage Optic nerve damage Myotoxicity-bupivicaine Globe perforation RBH-Venous/Arterial Systemic:Drug toxicity,vasovagal,allergic,8 th -12 th cranial neve

21. THANK YOU