PT  - JOURNAL ARTICLE
AU  - P S Raj
AU  - T Akingbehin
AU  - A M Levy
TI  - Objective autorefraction in posterior chamber pseudophakia.
AID  - 10.1136/bjo.74.12.731
DP  - 1990 Dec 01
TA  - British Journal of Ophthalmology
PG  - 731--733
VI  - 74
IP  - 12
4099  - http://bjo.bmj.com/content/74/12/731.short
4100  - http://bjo.bmj.com/content/74/12/731.full
SO  - Br J Ophthalmol1990 Dec 01; 74
AB  - Automated refraction with the Canon RK-1 Autoref keratometer was evaluated in 110 eyes (110 patients) six to eight weeks after they had undergone extracapsular cataract extraction with posterior chamber intraocular lens implantation and achieved a best corrected visual acuity of at least 6/12. Autorefraction readings were obtained in 100 (91%) of these eyes. The agreement between autorefraction and clinical refraction data was 98% for spherical equivalence less than 0.51 dioptres (D), 95% for sphere power less than 0.51D, 94% for cylinder power less than 0.51D, and 85% for cylinder axis less than 11 degrees. Autorefraction can provide acceptably accurate postoperative refraction values in pseudophakic eyes.