J Korean Ophthalmol Soc.  1986 Dec;27(6):1029-1035.

Clinical Study of Posterior Chamber Lens Implant in 200 Eyes

• Jeong SK
• Lee Y
• Park BI

Abstract

We studied 193 patients(200 eyes) who underwent extracapsular cataract extraction with posterior chamber lens implantation from September 1983 to May 1986. We compared the results of planned extracapsular cataract extraction(ECCE) group with those of Kelmen phacoemulsification(KPE) group. The results as follows; 1) Surgical technique is planned extracapsular cataract extraction in 98 eyes, Kelman phacoemulsification in 97 eyes, secondary implant in 2 eyes and triple procedure for glaucoma in 3 eyes. 2) Postoperative visual acuity of 0.5 or better was achieved in 190 eyes(95%) and 1.0 or better in 147 eyes(73.5%). Average of visual acuity was 0.86 +/- 0.26 in planned ECCE, 0.96 +/- 0.19 in KPE and 0.91 +/- 0.23 in toto. There was significant correlation between two(p<0.01). 3) The mean spherical equivalent of postoperative corrective spectacle lens power was -0.97 +/- 1.0 in planned ECCE, -0.95 +/- 0.95 in KPE and -0.96 +/- 0.97 in toto. Postoperative refractive state was myopic in 162 persons(84%), emmetropic in 13 persons(7%) and hyperopic in 18 persons(9%). 4) Error of predicted required spectacle lens power was -0.21D +/- 0.95 in planned ECCE, -0.12D +/- 1.0 in KPE, -0.16D +/- 0.97 in toto. With the use of the standard formula described by Hoffer, our results for the accuracy of intraocular lens calculation was 77% +/- 1.0D / 92.7% +/- 2.0D / +2.77 to -2.61D. 5) Of 200 eyes, 162 eyes required correction of astigmatism with average of -0.93D +/- 1.12 in planned ECCE, -0.57D +/- 0.76 in KPE and -0.76D +/- 0.98 in toto. There was significant correlation between two(p<0.05). 6) Mean corneal refractive power changes was -0.14D +/- 0.47 in planned ECCE, 0.05D +/- 0.49 in KPE and 0.02D +/- 0.48 in toto. There was no significant correlation between two. 7) Correlation efficiency between postoperative corneal astigmatism and actual astigmatism by skiascopy was r=0.6874(p<0.01) in planned ECCE, r=0.1833 in KPE and r=0.5747(P<0.01) in toto.

MeSH Terms

Astigmatism
Cataract
Cataract Extraction
Glaucoma
Lenses, Intraocular
Phacoemulsification
Retinoscopy
Visual Acuity