scholarly journals The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Intraocular Lens ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Vertical Meridian ◽  
Scheimpflug Camera ◽  
Lens Implantation ◽  
Correction Of Astigmatism ◽  
Cataract Patients

Purpose. To evaluate the effect of toric intraocular lens implantation in cataract patients with irregular corneal steep and flat meridian. Methods. Data of 112 eyes of 78 patients who underwent toric intraocular lens implantation were analyzed retrospectively. Steep meridian deviations (not 180°) and steep and flat meridian deviations (not 90°) were classified as 0, 1–9, 10–19, 20–29, 30–39, and over 30°. Meridian deviation was measured with a sagittal map of a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany) using PicPickTools (NGWIN, Seoul, Korea). Results. Residual astigmatism (D) of 0 (0.51 ± 0.13, 0.55 ± 0.15) and 1–9 (0.61 ± 0.16, 0.66 ± 0.19) groups were significantly lower than that of 10–19 (0.92 ± 0.24, 0.90 ± 0.28), 20–29 (0.10 ± 0.32, 1.01 ± 0.35), and over 30° groups (1.12 ± 0.37, 1.14 ± 0.40) both in steep meridian deviations and horizontal and vertical meridian deviations at 6 months ( P < 0.05 ). Postoperative mean UCVA (logMAR) of 0 (0.09 ± 0.04, 0.09 ± 0.05) (logMAR) and 1–9 (0.10 ± 0.04, 0.11 ± 0.08) groups was significantly improved compared to that of 10–19 (0.14 ± 0.05, 0.17 ± 0.10), 20–29 (0.18 ± 0.08, 0.21 ± 0.10), and over 30° groups (0.20 ± 0.09, 0.22 ± 0.11) both in steep meridian deviations and horizontal and vertical meridian deviations at 6 months ( P < 0.05 ). Conclusions. Correction of astigmatism with toric intraocular lens implantation is not accurate in corneas with steep meridian deviations and steep and flat meridian deviations of more than 10°. Therefore, care should be taken when we perform toric intraocular lens implantation in patients with irregular corneal meridian.

scholarly journals The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian.

2020 ◽  
Author(s):  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Intraocular Lens ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Vertical Meridian ◽  
Scheimpflug Camera ◽  
Lens Implantation ◽  
Correction Of Astigmatism ◽  
Cataract Patients

Abstract Purpose: To evaluate the effect of toric intraocular lens implantation in cataract patients with irregular corneal steep and flat meridian. Methods: Data of 112 eyes of 78 patients who underwent toric intraocular lens implantation were analyzed retrospectively. Steep meridian deviations (not 180 degrees) and steep and flat meridian deviations (not 90 degrees) were classified as 0, 1~9, 10~19, 20~29, 30~39, and over 30 degrees. Meridian deviation was measured with Sagittal map of rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany) using PicPickTools (NGWIN, Seoul, Korea). Results: Residual astigmatism (D) of the 0 (0.48±0.12, 0.53±0.12) and the 1~9 (0.59±0.15, 0.63±0.17) were significantly lower than those of 10~19 (0.85±0.21, 0.85±0.26), 20~29 (0.96±0.31, 0.99±0.34), and over 30 degrees groups (1.06±0.36, 1.02±0.38) both in steep meridian deviations and horizontal and vertical meridian deviations at 2 months (P< 0.05). Postoperative mean UCVA (logMAR) of 0 (0.08±0.03, 0.08±0.03) (logMAR) and 1~9 (0.09 ± 0.04, 0.08 ± 0.04) were significantly improved compared to those of 10~19 (0.13±0.04, 0.15±0.05), 20~29 (0.16±0.05, 0.17±0.05), and over 30 degrees groups (0.19±0.07, 0.18±0.06) both in steep meridian deviations and horizontal and vertical meridian deviations (P< 0.05).Conclusions: Correction of astigmatism with toric intraocular lens implantation is not accurate in cornea with steep meridian deviations and steep and flat meridian deviations of more than 10 degrees. Therefore, care should be taken when we perform toric intraocular lens implantation in patients with irregular corneal meridian.

scholarly journals Toric Intraocular Lens Implantation for Correction of Astigmatism in Cataract Patients with Corneal Ectasia

2013 ◽  
Vol 4 (3) ◽  
pp. 219-228 ◽  
Author(s):  
Efstratios A. Parikakis ◽  
Irini P. Chatziralli ◽  
Vasileios G. Peponis ◽  
Georgios David ◽  
Spyridon Chalkiadakis ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Corneal Ectasia ◽  
Lens Implantation ◽  
Correction Of Astigmatism ◽  
Cataract Patients

scholarly journals Toric Intraocular Lens Implantation in Cataract Patients with Corneal Opacity

2020 ◽  
Author(s):  
Ho Ra ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Opacity ◽  
Corneal Astigmatism ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Cataract Patient ◽  
Lens Implantation ◽  
Cataract Patients ◽  
Total Corneal Astigmatism

Abstract Background: To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods: 31 eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were included. All patients had corneal opacity with astigmatism. Preoperative total corneal astigmatism was determined considering posterior astigmatism using a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany). At 2 months after toric intraocular lens implantation, we evaluated residual astigmatism, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA).Results: Postoperative UCVA and BCVA (0.30 ± 0.17, 0.22 ± 0.16LogMAR) were statistically improved compared to preoperative UCVA and BCVA (1.2 ± 0.34, 1.1 ± 0.30LogMAR, respectively) (P<0.01). Postoperative residual refractive astigmatism (1.2 ± 0.35D) was statistically reduced compared to preoperative refractive astigmatism (2.4 ± 0.65D) (P<0.05). Preoperative and postoperative total corneal astigmatism values were not statistically different. All eyes achieved postoperative visual acuity as good as or better than preoperative one. The size of corneal opacity covering pupil had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=0.91 P<0.05 and R=0.92 P<0.05, respectively)Conclusion: Toric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The size of corneal opacity covering pupil is the major prognostic factor for postoperative visual improvement. Therefore, toric intraocular lens implantation should be considered for cataract patients who have corneal opacity with high astigmatism.

scholarly journals Toric Intraocular Lens Implantation in Cataract Patients with Corneal Opacity.

2019 ◽  
Author(s):  
Ho Ra ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Opacity ◽  
Corneal Astigmatism ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Cataract Patient ◽  
Lens Implantation ◽  
Cataract Patients ◽  
Total Corneal Astigmatism

Abstract Purpose: To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods: 31 eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were included. All patients had corneal opacity with astigmatism. Preoperative total corneal astigmatism was determined considering posterior astigmatism using a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany). At 2 months after toric intraocular lens implantation, we evaluated residual astigmatism, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA). Results: Postoperative UCVA and BCVA (0.30 ± 0.17, 0.22 ± 0.16LogMAR) statistically improved compared to preoperative UCVA and BCVA (1.2 ± 0.34, 1.1 ± 0.30LogMAR, respectively) (P<0.01). Postoperative residual refractive astigmatism (1.2 ± 0.35D) was statistically reduced compared to preoperative refractive astigmatism (2.4 ± 0.65D) (P<0.05). Preoperative and postoperative total corneal astigmatism values were not statistically different. All eyes achieved postoperative visual acuity as good as or better than preoperative one. The size of corneal opacity covering pupil had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=0.91 P<0.05 and R=0.92 P<0.05, respectively). Conclusion: Toric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The size of corneal opacity covering pupil is the major prognostic factor for postoperative visual improvement. Therefore, toric intraocular lens implantation should be considered for cataract patients who have corneal opacity with high astigmatism.

scholarly journals Toric Intraocular Lens Implantation in Cataract Patients with Corneal Opacity.

2019 ◽  
Author(s):  
Ho Ra ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Opacity ◽  
Corneal Astigmatism ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Cataract Patient ◽  
Lens Implantation ◽  
Cataract Patients ◽  
Total Corneal Astigmatism

Abstract Purpose: To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods: 31 eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were included. All patients had corneal opacity with astigmatism. Preoperative total corneal astigmatism was determined considering posterior astigmatism using a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany). At 2 months after toric intraocular lens implantation, we evaluated residual astigmatism, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA). Results: Postoperative UCVA and BCVA (0.30 ± 0.17, 0.22 ± 0.16LogMAR) statistically improved compared to preoperative UCVA and BCVA (1.2 ± 0.34, 1.1 ± 0.30LogMAR, respectively) (P<0.01). Postoperative residual refractive astigmatism (1.2 ± 0.35D) was statistically reduced compared to preoperative refractive astigmatism (2.4 ± 0.65D) (P<0.05). Preoperative and postoperative total corneal astigmatism values were not statistically different. All cases achieved visual acuity were as good as or better than that preoperatively. The percentage of corneal opacity covering pupillary area had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=-0.88 P<0.00001 and R=-0.87 P<0.00001, respectively) Conclusion: Toric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The percentage of central corneal opacity covering pupillary area is the major prognostic factor for postoperative visual improvement. Therefore, toric intraocular lens implantation should be considered for cataract patients who have corneal opacity with high astigmatism.

scholarly journals Toric Intraocular Lens Implantation in Cataract Patients with Corneal Opacity

2019 ◽  
Author(s):  
Ho Ra ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Opacity ◽  
Corneal Astigmatism ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Cataract Patient ◽  
Lens Implantation ◽  
Cataract Patients ◽  
Total Corneal Astigmatism

AbstractAimsTo evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism.Methods31 eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were included. All patients had corneal opacity with regular astigmatism. Preoperative total corneal astigmatism was determined considering posterior astigmatism using a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany). At 2 months after toric intraocular lens implantation, we evaluated residual astigmatism, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA).ResultsPostoperative UCVA and BCVA (0.30 ± 0.17, 0.22 ± 0.16LogMAR) statistically improved compared to preoperative UCVA and BCVA (1.2 ± 0.34, 1.1 ± 0.30LogMAR, respectively) (P<0.01). Postoperative residual refractive astigmatism (1.2 ± 0.35D) was statistically reduced compared to preoperative refractive astigmatism (2.4 ± 0.65D) (P<0.05). Preoperative and postoperative total corneal astigmatism values were not statistically different. All cases achieved visual acuity were as good as or better than that preoperatively. The percentage of corneal opacity covering pupillary area had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=-0.88 P<0.00001 and R=-0.87 P<0.00001, respectively)ConclusionToric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The percentage of central corneal opacity covering pupillary area is the major prognostic factor for postoperative visual improvement. Therefore, toric intraocular lens implantation should be considered for cataract patients who have corneal opacity with high astigmatism.

scholarly journals Toric intraocular lens implantation in cataract patients with corneal opacity

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ho Ra ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Intraocular Lens ◽  
Corneal Opacity ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Lens Implantation ◽  
Cataract Patients

scholarly journals Toric Intraocular Lens Implantation in Cataract Patients with Corneal Opacity.

2020 ◽  
Author(s):  
Ho Ra ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Opacity ◽  
Corneal Astigmatism ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Cataract Patient ◽  
Lens Implantation ◽  
Cataract Patients ◽  
Total Corneal Astigmatism

Abstract Purpose: To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods: 31 eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were included. All patients had corneal opacity with astigmatism. Preoperative total corneal astigmatism was determined considering posterior astigmatism using a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany). At 2 months after toric intraocular lens implantation, we evaluated residual astigmatism, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA). Results: Postoperative UCVA and BCVA (0.30 ± 0.17, 0.22 ± 0.16LogMAR) statistically improved compared to preoperative UCVA and BCVA (1.2 ± 0.34, 1.1 ± 0.30LogMAR, respectively) (P<0.01). Postoperative residual refractive astigmatism (1.2 ± 0.35D) was statistically reduced compared to preoperative refractive astigmatism (2.4 ± 0.65D) (P<0.05). Preoperative and postoperative total corneal astigmatism values were not statistically different. All eyes achieved postoperative visual acuity as good as or better than preoperative one. The size of corneal opacity covering pupil had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=0.91 P<0.05 and R=0.92 P<0.05, respectively) Conclusion: Toric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The size of corneal opacity covering pupil is the major prognostic factor for postoperative visual improvement. Therefore, toric intraocular lens implantation should be considered for cataract patients who have corneal opacity with high astigmatism.

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