Research output: Contribution to journal › Article › peer-review
Метод расчёта остаточного астигматизма при имплантации монофокальной неторической интраокулярной линзы. / Белов, Дмитрий Федорович; Николаенко, Вадим Петрович; Алексеева, Ангелина Геннадьевна.
In: ОФТАЛЬМОЛОГИЧЕСКИЕ ВЕДОМОСТИ, Vol. 16, No. 3, 17.10.2023, p. 45-52.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Метод расчёта остаточного астигматизма при имплантации монофокальной неторической интраокулярной линзы
AU - Белов, Дмитрий Федорович
AU - Николаенко, Вадим Петрович
AU - Алексеева, Ангелина Геннадьевна
PY - 2023/10/17
Y1 - 2023/10/17
N2 - BACKGROUND: Nowadays, phacoemulsification with monofocal non-toric intraocular lens (IOL) implantation is a most common procedure in cataract surgery. Residual astigmatism has an important impact on uncorrected visual acuity. Therefore, development of residual astigmatism assessment method is relevant and may expand indications for toric IOL implantation. AIM: To develop a method for calculating residual astigmatism in cases when non-toric monofocal IOL is implanted. MATERIALS AND METHODS: The study included 351 patients (391 eyes, 105 men and 246 women, mean age 75.3 8.5 years) who underwent phacoemulsification with non-toric monofocal IOL implantation. Biometry was performed by IOL-Master 500, postoperative refraction was assessed by autorefractometer Topcon-8800. RESULTS: Using regression analysis, where the depended variable was residual astigmatism, and preoperative corneal astigmatism and steep corneal meridian axis location served as covariates, we revealed a significant relation (p 0.001) with medium strength (R2 = 0.51) between these parameters, which formed residual astigmatism calculation formula for monofocal non-toric IOL implantation: Ast = KAst 0.71 0.62 sinKax + 0.73. CONCLUSIONS: This formula may allow to evaluate the residual astigmatism and justify a decision on the advisability of toric IOL implantation.
AB - BACKGROUND: Nowadays, phacoemulsification with monofocal non-toric intraocular lens (IOL) implantation is a most common procedure in cataract surgery. Residual astigmatism has an important impact on uncorrected visual acuity. Therefore, development of residual astigmatism assessment method is relevant and may expand indications for toric IOL implantation. AIM: To develop a method for calculating residual astigmatism in cases when non-toric monofocal IOL is implanted. MATERIALS AND METHODS: The study included 351 patients (391 eyes, 105 men and 246 women, mean age 75.3 8.5 years) who underwent phacoemulsification with non-toric monofocal IOL implantation. Biometry was performed by IOL-Master 500, postoperative refraction was assessed by autorefractometer Topcon-8800. RESULTS: Using regression analysis, where the depended variable was residual astigmatism, and preoperative corneal astigmatism and steep corneal meridian axis location served as covariates, we revealed a significant relation (p 0.001) with medium strength (R2 = 0.51) between these parameters, which formed residual astigmatism calculation formula for monofocal non-toric IOL implantation: Ast = KAst 0.71 0.62 sinKax + 0.73. CONCLUSIONS: This formula may allow to evaluate the residual astigmatism and justify a decision on the advisability of toric IOL implantation.
UR - https://www.mendeley.com/catalogue/60ae606c-c01d-369b-8323-0f639b47f83d/
U2 - 10.17816/OV321678
DO - 10.17816/OV321678
M3 - статья
VL - 16
SP - 45
EP - 52
JO - Ophthalmology Journal
JF - Ophthalmology Journal
SN - 1998-7102
IS - 3
ER -
ID: 111651115