A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion

Emre İstiklal Durgunlu; Onur Furundaoturan; Halil Hüseyin Çağatay

doi:10.19161/etd.1882261

TR EN

Retinal ven dal tıkanıklığında farklı ışık koşullarında pupil çapının kesitsel değerlendirilmesi

Abstract

Amaç: Bu çalışmanın amacı, retinal ven dal tıkanıklığının (RVDT) farklı aydınlatma koşullarında pupilla boyutu üzerine etkisini araştırmaktır. Gereç ve Yöntem: Kesitsel planlanan bu çalışmaya RVDT tanısı alan hastalar dahil edildi. Optik koherens tomografi ve fundus flöresein anjiografisi dahil olmak üzere ayrıntılı oftalmolojik muayene gerçekleştirildi. Skotopik, mezopik, fotopik ve farmakolojik midriyazis koşullarında pupilla çapları Sirius cihazı (CSO; Sirius, Floransa, İtalya) kullanılarak ölçüldü. RVDT tanılı gözler, etkilenmemiş karşı gözlerle karşılaştırıldı. Bulgular: Toplam 30 hastaya ait 60 göz çalışmaya dahil edildi. Hastaların ortalama yaşı 59,06±12,09 yıl idi. Tıkanıklık yeri 17 gözde (%56,67) üst temporal ven, 13 gözde (%43,33) ise alt temporal ven olarak saptandı. Skotopik (4,87±0,98 mm, 4,47±0,98 mm), mezopik (3,76±0,90 mm, 4,08±0,88 mm), fotopik (3,27±0,72 mm, 3,06±0,40 mm) ve midriyatik (7,87±0,70 mm, 7,76±0,68 mm) koşullarda ölçülen pupilla çapları, sağlıklı gözlerle karşılaştırıldığında, istatistiksel olarak anlamlı bir fark saptanamadı. Sonuç: Pupilla refleksindeki farklılıklar ve değişiklikler, retinal ven tıkanıklığında prognostik bir kriter olarak bilinmektedir; ancak bu bulgular ven dal tıkanıklığında korunmuş olarak görünmektedir. Bu çalışmanın sonuçlarına göre, retinal ven dal tıkanıklığının farklı aydınlatma koşullarında pupilla çapını etkilemediği gösterilmiştir.

Keywords

Ethical Statement

Bu çalışma, Kafkas Üniversitesi Etik Kurulu tarafından onaylanmış (14/11/122) olup, Helsinki Bildirgesi ilkeleri doğrultusunda gerçekleştirilmiştir.

A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion

Abstract

Aim: To evaluate the effect of branch retinal vein occlusion (BRVO) on pupil diameter under varying lighting conditions. Materials and Methods: This cross-sectional study included patients diagnosed with BRVO. All participants underwent comprehensive ophthalmologic examinations, including optical coherence tomography and fluorescein angiography. Pupil diameters were measured under scotopic, mesopic, photopic, and pharmacologic mydriatic conditions using the Sirius device (CSO; Sirius, Italy). Eyes affected by BRVO were compared with the contralateral unaffected eyes. Results: Sixty eyes from 30 patients (mean age: 59.06±12.09 years) were included. Among the affected eyes, 17 (56.67%)13(43.33%) had occlusion at the superior temporal vein and 13 (43.33%) at the inferior temporal vein. Pupil diameters under different lighting conditions showed no statistically significant differences between BRVO affected and contralateral eyes. The mean pupil diameter under scotopic conditions was 4.87±0.98 mm in BRVO eyes and 4.47±0.98 mm in fellow eyes. Under mesopic conditions, it was 3.76±0.90 mm in BRVO eyes and 4.08±0.88 mm in fellow eyes. Photopic measurements showed 3.27±0.72 mm in BRVO eyes and 3.06±0.40 mm in fellow eyes. Finally, under pharmacologically induced mydriasis, pupil sizes were 7.87±0.70 mm in BRVO eyes and 7.76±0.68 mm in fellow eyes. These findings indicate that BRVO does not significantly alter pupil size in response to varying illumination or pharmacological dilation. Conclusions: The impairment and the changes of pupillary reflex known to be a prognostic criterion for retinal vein occlusion, however this seem to be preserved in BRVO. Based on the results of this study BRVO was not associated with significant alterations in static pupil diameter under different lighting or pharmacologic dilation conditions.

Keywords

Supporting Institution

None

Ethical Statement

This study was conducted after the approval of the Ethics Committee of Kafkas University (14/11/122) and in line with the principles of the Declaration of Helsinki

References

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Details

Primary Language

English

Subjects

Surgery (Other)

Journal Section

Research Article

Authors

Emre İstiklal Durgunlu
0009-0007-6579-1754
Türkiye

Onur Furundaoturan ^*
0000-0001-6929-6645
Türkiye

Halil Hüseyin Çağatay
0000-0002-6283-1905
Türkiye

Publication Date

September 3, 2026

Submission Date

February 4, 2026

Acceptance Date

March 17, 2026

Published in Issue

Year 2026 Volume: 65 Number: 3

DOI

https://doi.org/10.19161/etd.1882261

IZ

https://izlik.org/JA66SJ28BC

Cite

RIS / Bibtex

APA

İstiklal Durgunlu, E., Furundaoturan, O., & Çağatay, H. H. (2026). A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion. Ege Tıp Dergisi, 65(3), 369-375. https://doi.org/10.19161/etd.1882261

AMA

1.İstiklal Durgunlu E, Furundaoturan O, Çağatay HH. A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion. EJM. 2026;65(3):369-375. doi:10.19161/etd.1882261

Chicago

İstiklal Durgunlu, Emre, Onur Furundaoturan, and Halil Hüseyin Çağatay. 2026. “A Cross-Sectional Evaluation of Static Pupil Diameter under Different Illumination Conditions in Branch Retinal Vein Occlusion”. Ege Tıp Dergisi 65 (3): 369-75. https://doi.org/10.19161/etd.1882261.

EndNote

İstiklal Durgunlu E, Furundaoturan O, Çağatay HH (September 1, 2026) A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion. Ege Tıp Dergisi 65 3 369–375.

IEEE

[1]E. İstiklal Durgunlu, O. Furundaoturan, and H. H. Çağatay, “A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion”, EJM, vol. 65, no. 3, pp. 369–375, Sept. 2026, doi: 10.19161/etd.1882261.

ISNAD

İstiklal Durgunlu, Emre - Furundaoturan, Onur - Çağatay, Halil Hüseyin. “A Cross-Sectional Evaluation of Static Pupil Diameter under Different Illumination Conditions in Branch Retinal Vein Occlusion”. Ege Tıp Dergisi 65/3 (September 1, 2026): 369-375. https://doi.org/10.19161/etd.1882261.

JAMA

1.İstiklal Durgunlu E, Furundaoturan O, Çağatay HH. A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion. EJM. 2026;65:369–375.

MLA

İstiklal Durgunlu, Emre, et al. “A Cross-Sectional Evaluation of Static Pupil Diameter under Different Illumination Conditions in Branch Retinal Vein Occlusion”. Ege Tıp Dergisi, vol. 65, no. 3, Sept. 2026, pp. 369-75, doi:10.19161/etd.1882261.

Vancouver

1.Emre İstiklal Durgunlu, Onur Furundaoturan, Halil Hüseyin Çağatay. A cross-sectional evaluation of static pupil diameter under different illumination conditions in branch retinal vein occlusion. EJM. 2026 Sep. 1;65(3):369-75. doi:10.19161/etd.1882261