Incidence of posterior capsular opacification in rigid pmma
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1. The document compares the incidence of posterior capsular opacification (PCO) in different groups who received rigid PMMA intraocular lenses (IOLs) through either extracapsular cataract extraction (ECCE) or phacoemulsification surgery. 2. The results showed that males had a higher incidence of PCO than females, and ECCE patients using three-piece convex-plano IOL designs or IOLs with heparin surface modifications had lower rates of PCO. 3. Phacoemulsification patients had a higher incidence of PCO compared to ECCE patients, and within phaco patients, those with heparin surface modified IOLs
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Incidence of posterior capsular opacification in rigid pmma
- 1. Incidence of Posterior Capsular Opacification in Rigid PMMA IOLs Dr. Anand Sudhalkar
- 9. Age And Sex Association Chi-square = 8.68 Degree of freedom =3 , P=0.0338 14.98% 317 2116 18.18% 68 374 2490 TOTAL 13.81% 154 1115 14.85% 30 202 1317 FEMALE 16.28% 163 1001 22.09% 38 172 1173 MALE % YAG YAG AGE >50 % YAG YAG AGE <50 TOTAL SEX
- 10. ECCE : III Piece PMMAConvex-Plano Single Piece Biconvex
- 11. ECCE : IOL Designs Chi-square =12.39 Degree of freedom = 3 P = 0.0061 14.03% 260 1852 17.5% 58 330 14.5% 318 2182 Total 14.8% 231 1550 19.5% 51 261 15.5% 282 1811 Biconvex 9.6% 29 302 10.4% 7 69 9.7% 36 371 Convex Plano % Yag Yag cases % Yag Yag cases % Yag Yag Cases Age > 50 Years Age < 50 Years
- 12. ECCE : Surface Modifications HSM AGAINST NON HSM Single Piece Biconvex
- 13. ECCE : HSM AGAINST NON HSM Chi-square = 7.93 Degree of freedom = 3 P = 0.0474 14.9% 232 1551 19.4% 51 261 15.5% 282 1812 Total 0% 0 22 0% 0 2 0% 0 24 HSM 15.17% 232 1529 19.6% 51 259 15.7% 282 1788 Non HSM % Yag Yag cases % Yag Yag Cases % Yag Yag Cases Age > 50 Years Age < 50 Years
- 14. PHACO : Biconvex IOL NON HSM v/s HSM
- 15. PHACO : NON HSM v/s HSM Chi-square = 7.08, Degree of freedom = 3, P= 0.06931 20.5% 54 263 33.3% 15 45 22.4% 69 308 TOTAL 0 0 13 40% 2 5 11% 2 18 HSM 21.6% 54 250 32.5% 13 40 23.1% 67 290 Non HSM %yag yag cases % Yag Yag Cases % Yag Yag Cases Age > 50 Years Age < 50 Years
- 16. ECCE V/S PHACO
- 17. ECCE V/S PHACO Chi-square = 12.85 Degree of freedom = 3 P = 0.00496 15.7% 286 1815 20.9% 64 305 18.1% 385 2120 Total 20.4% 54 264 29.5% 13 44 21.7% 67 308 Phaco 14.9% 232 1551 19.5% 51 261 17.5% 318 1812 ECCE % yag yag cases % Yag Yag Cases % Yag Yag cases Age > 50 Years Age < 50 Years
- 20. Thank You
Editor's Notes
- Still haunts best of cataract surgeries with PCIOL Amongst all IOLs, Rigid PMMA is most frequently used & has the longest track record Lot of scientific work Surgical techniques and IOL types association with PCO
- Diagnosis and quantification of PCO has been published in detail by these authors but clinical symptom of loss of two or more lines as labeled visually significant by Ram Pandey et is very practical. Relation of Rhexis size, IOl size, IOL design and surface coatings have been well documented.
- 1.PCO was considered visually significant when visually significant if there is drop by two Snellen’s lines or <6/18 2 Over three years post-op. 3 Same surgeon 4 Rigid PMMA PC IOL
- Visually significant Two surgical techniques : ECCE & PHACO Two IOL shapes : Planoconvex & Biconex sizes : 6.5mm or 5.5mm surface modification : with or without HSM