Evaluation of the Effect of Inferior Oblique Myectomy on Corneal and Anterior Segment Parameters

Ömer Faruk Yılmaz; Müslüm Toptan; Özgur Çakıcı; Halit Oğuz

Article Details

Evaluation of the Effect of Inferior Oblique Myectomy on Corneal and Anterior Segment Parameters

Authors:

Ömer Faruk Yılmaz | Müslüm Toptan | Özgur Çakıcı | Halit Oğuz

Publisher:

Sakarya University

Main Topics:

Sağlık Kurumları Yönetimi

Journal:

Sakarya Tıp Dergisi Vol.13 Issue 4, pp.507-513

Document Type:

Article

Publication Date:

12/2023

Document Language:

English

Document ID (Org No.):

2001305554

pISSN:

2146-409X

Keywords:

Abstract:

 Purpose: This study aimed to evaluate the effect of inferior oblique myectomy IOM surgery on the cornea and anterior segment. Methods: The sheimpflug corneal topographies of 56 eyes of 33 patients who underwent IOM were analyzed at preoperative, postoperative 1 week, 1 month, 3 months, and 6 months. Astigmatism degree Cyl, astigmatism axis Ax, K1, central corneal thickness CCT, anterior chamber depth ACD, anterior chamber volume ACV, iridocorneal angle ICA, and horizontal visible iris diameter HVID were evaluated. Results: The mean corneal Cyl, K1, ICA, ACD, and HVID did not change after IOM p0.671, p0.377, p0.431, p0.588, p0.795, respectively. There was a statistically significant change in Ax p0.025. The right Ax decreased, and the left Ax increased the most at 1 month p0.025, p0.882, respectively. Ax increase was also detected in the left eye that was not operated on. The mean CCT increased and mean ACV decreased at 1 month p0.588, p0.270, respectively, but these changes returned to preoperative values at 3 months. Conclusion: The manifestation of anterior segment alterations and intorsion in both eyes following inferior oblique myectomy may contribute to diminished visual acuity and the potential onset of amblyopia. These alterations merit consideration during the assessment, and if deemed necessary, the provision of new spectacles should be considered as a preventive measure against anisometropic amblyopia.

 Purpose: This study aimed to evaluate the effect of inferior oblique myectomy IOM surgery on the cornea and anterior segment. Methods: The sheimpflug corneal topographies of 56 eyes of 33 patients who underwent IOM were analyzed at preoperative, postoperative 1 week, 1 month, 3 months, and 6 months. Astigmatism degree Cyl, astigmatism axis Ax, K1, central corneal thickness CCT, anterior chamber depth ACD, anterior chamber volume ACV, iridocorneal angle ICA, and horizontal visible iris diameter HVID were evaluated. Results: The mean corneal Cyl, K1, ICA, ACD, and HVID did not change after IOM p0.671, p0.377, p0.431, p0.588, p0.795, respectively. There was a statistically significant change in Ax p0.025. The right Ax decreased, and the left Ax increased the most at 1 month p0.025, p0.882, respectively. Ax increase was also detected in the left eye that was not operated on. The mean CCT increased and mean ACV decreased at 1 month p0.588, p0.270, respectively, but these changes returned to preoperative values at 3 months. Conclusion: The manifestation of anterior segment alterations and intorsion in both eyes following inferior oblique myectomy may contribute to diminished visual acuity and the potential onset of amblyopia. These alterations merit consideration during the assessment, and if deemed necessary, the provision of new spectacles should be considered as a preventive measure against anisometropic amblyopia.

 Purpose: This study aimed to evaluate the effect of inferior oblique myectomy IOM surgery on the cornea and anterior segment. Methods: The sheimpflug corneal topographies of 56 eyes of 33 patients who underwent IOM were analyzed at preoperative, postoperative 1 week, 1 month, 3 months, and 6 months. Astigmatism degree Cyl, astigmatism axis Ax, K1, central corneal thickness CCT, anterior chamber depth ACD, anterior chamber volume ACV, iridocorneal angle ICA, and horizontal visible iris diameter HVID were evaluated. Results: The mean corneal Cyl, K1, ICA, ACD, and HVID did not change after IOM p0.671, p0.377, p0.431, p0.588, p0.795, respectively. There was a statistically significant change in Ax p0.025. The right Ax decreased, and the left Ax increased the most at 1 month p0.025, p0.882, respectively. Ax increase was also detected in the left eye that was not operated on. The mean CCT increased and mean ACV decreased at 1 month p0.588, p0.270, respectively, but these changes returned to preoperative values at 3 months. Conclusion: The manifestation of anterior segment alterations and intorsion in both eyes following inferior oblique myectomy may contribute to diminished visual acuity and the potential onset of amblyopia. These alterations merit consideration during the assessment, and if deemed necessary, the provision of new spectacles should be considered as a preventive measure against anisometropic amblyopia.

 Amaç: Çalışmamız inferior oblik miyektominin İOM kornea ve ön segment üzerine etkisini değerlendirmeyi amaçlamaktadır. Yöntem: Bu çalışmada İOM yapılan 33 hastanın 56 gözünün ameliyat öncesi, ameliyat sonrası 1. hafta, 1. ay, 3. ay ve 6. ay sheimpflug kornea topografileri incelendi. Astigmatizma derecesi Cyl, astigmatizma aksı Aks, K1, santral kornea kalınlığı SKK, ön kamera derinliği ÖKD, ön kamera volümü ÖKV, iridokorneal açı IKA ve horizontal görünür iris çapı HGİÇ değerlendirildi. Bulgular: IOM sonrası ortalama kornea Cyl, K1, IKA, ÖKD ve HGİÇ değişmedi. sırasıyla p0,671, p0,377, p0,431, p0,588, p0,795. Cylde değişiklik olmamasına rağmen p0,671, Aksta değişiklik oldu p0,025. Sağ Ax düşüşü ve sol Ax artışı birinci ayda maksimumdu sırasıyla p0,025, p0,882. Ayrıca ameliyat edilmeyen sol gözlerde dahi Aks artışı tespit edildi. Ortalama SKK 1. ayda arttı ve Ortalama ÖKV azaldı ve 3. ayda ameliyat öncesi değerlere döndü sırasıyla p0.588, p0.270. Sonuç: İnferior oblik miyektomiyi takiben her iki gözdeki ön segment değişiklikleri ve intorsiyon, görme keskinliğinin azalmasına ve potansiyel ambliyopi başlangıcına katkıda bulunabilir. Gerekli görülmesi halinde anizometropik ambliyopiye karşı koruyucu bir önlem olarak yeni gözlükler yazılmalıdır.

Article Details

Evaluation of the Effect of Inferior Oblique Myectomy on Corneal and Anterior Segment Parameters

Authors:

Ömer Faruk Yılmaz | Müslüm Toptan | Özgur Çakıcı | Halit Oğuz

Publisher:

Sakarya University

Main Topics:

Sağlık Kurumları Yönetimi

Journal:

Sakarya Tıp Dergisi Vol.13 Issue 4, pp.507-513

Document Type:

Article

Publication Date:

12/2023

Document Language:

English

Document ID (Org No.):

2001305554

pISSN:

2146-409X

inferior oblique myectomy

cornea

astigmatism

anterior segmentinferior oblik miyektomi

kornea

astigmatizma

ön segment

Issues

Article Details

Authors: Ömer Faruk Yılmaz | Müslüm Toptan | Özgur Çakıcı | Halit Oğuz

Publisher: Sakarya University

Main Topics: Sağlık Kurumları Yönetimi

Journal: Sakarya Tıp Dergisi Vol.13 Issue 4, pp.507-513

Document Type: Article

Publication Date: 12/2023

Document Language: English

Document ID (Org No.): 2001305554

pISSN: 2146-409X

Issues

Authors:

Ömer Faruk Yılmaz | Müslüm Toptan | Özgur Çakıcı | Halit Oğuz

Publisher:

Sakarya University

Main Topics:

Sağlık Kurumları Yönetimi

Journal:

Sakarya Tıp Dergisi Vol.13 Issue 4, pp.507-513

Document Type:

Article

Publication Date:

12/2023

Document Language:

English

Document ID (Org No.):

2001305554

pISSN:

2146-409X