Related Experiment Video
Updated: Jul 5, 2026

Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability
Published on: August 6, 2021
Optic disc hemorrhages in a patient with hemophilia A
Teng-Yi Wang1, Chi-Ting Horng2, Shin-Nan Cheng3
1Department of Ophthalmology, Tri-Service General Hospital, No. 325, Sec. 2, Chenggong Rd, Taipei, 114, Taiwan, ROC.
Abstract:
To report a hemophilia patient complicated with optic disc hemorrhages. A 13-year-old boy presented to our emergency room with a black shadow in the left eye for 1 day. The best-corrected visual acuity was 6/6 in both eyes. Peripapillary retinal and subretinal hemorrhages were found in the left eye. Result of the laboratory examination showed an extremely low level of coagulation factor VIII (1.9%). Factor VIII concentrate was given for 8 weeks. A follow-up 3 months later showed absorption of the hemorrhages, black shadow diminished, and the vision was 6/6.
Related Concept Videos
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Hemorrhagic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
Glaucoma: Overview
Diabetic Retinopathy
