• Jewel Namasudra
• Dr. Amar Kanti Chakma

There is mounting evidence that after tiny incision cataract surgery, refractive stability occurs soon. Still, many standards recommend waiting anywhere from four to six weeks before doling out the glasses. This research aimed to fill a gap in the current literature on refractive stabilization by assessing a variety of factors that might make doctors reluctant to correct refractive error in the immediate post-operative period following standard cataract extractions. Intraocular lenses manufactured by Bausch and Rayner were utilised. Ninety-one percent of emmetropic patients, seventy-seven percent of myopic patients, and forty-six percent of hypermetropic patients reached refractive stability by week three. Optical biometry and the Barrett Universal II algorithm for calculating lens implant power were used to correct postoperative refraction. There was no discernible variation between separate test series when comparing the spherical analogue. After the first postoperative day, there was no statistically significant change in any of the measures taken at any of the follow-up appointments; nevertheless, the cylinder power was substantially greater on that day compared to all subsequent sessions. Spherical equivalent discrepancies between one post-operative measurement and the reference measurement had 95% confidence intervals ranging from around 2.00 D on the first post-operative day to between 1.20 D and 0.80 D in weeks 1, 3, and 5. On day one after surgery, the cylinder power confidence interval was 2.00 D, whereas in weeks 1-3 it was 1.27 D, and in weeks 4-5 it was 0.88 D. It was shown that the statistical dispersion of both the spherical equivalent and the cylinder power decreased somewhat as recovery time following surgery increased. Our study found that the measurement error for spherical equivalent using automated refractometry in ageing phakic eyes is 0.80 D, while the error for cylinder power is 1.16 D.

Cataract, postoperative refraction, refraction measurement, repeated automated refractometry, Corneal Tunnel

"ASSESSMENT OF THE REFRACTIVE ERROR AND STABILISATION OF REFRACTION AFTER CATARACT SURGERY IN RELATION TO THE LENGTH OF THE EYEBALL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 10, page no.201-209, October-2022, Available :http://www.jetir.org/papers/JETIRFU06024.pdf

"ASSESSMENT OF THE REFRACTIVE ERROR AND STABILISATION OF REFRACTION AFTER CATARACT SURGERY IN RELATION TO THE LENGTH OF THE EYEBALL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 10, page no. pp201-209, October-2022, Available at : http://www.jetir.org/papers/JETIRFU06024.pdf