Blackout: Understanding transient vision loss

Jeffery, Rachael C. Heath; Chen, Fred K.; Lueck, Christian J.

doi:10.31128/ajgp-03-20-5271

Cited by 5 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6 In addition, the possible examination can involve an anterior segment, fundoscopy, and OCT. 13 Other examinations include fundus examination with an indirect ophthalmoscope and photo stress test to utilise this photoreceptor bleaching phenomenon. 14 However, in some clinical cases, ophthalmic, cardiovascular, 7,24,31 and cerebrovascular 13 examinations on patients were found normal. This result rules out any severe ocular disease and underlines that the history is sufficient for the diagnosis.…”

Section: Examinationmentioning

confidence: 95%

“…7 This further examination is done by considering that the patients with this ocular disorder cannot be reassured. 31 Psychophysical testing was conducted by adapting to patients' circumstances to lose vision in one eye adapted to a dark setting. It is mainly to recreate the circumstances that caused the disorder to help confirm the diagnosis.…”

Section: Psychophysical Evaluationmentioning

confidence: 99%

See 1 more Smart Citation

Diagnosis and management of transient smartphone blindness: A literature review

Afifah,

Fara Syafira,

Dini Dharmawidiarini

2023

JKKI

View full text Add to dashboard Cite

The development of smartphones worldwide has rapidly increased the number of smartphone users. Although smartphones have many benefits, prolonged use causes various visual disorders, of which transient smartphone blindness (TSB) is one of the most important concerns. This study aims to analyse the phenomenon of TSB and explore its etiology, pathophysiology, symptoms, and examination to determine the diagnosis and management. Transient smartphone blindness is a new physiologic phenomenon caused by exposure to a certain level of smartphone bright light and the body posture of the smartphone user. It leads to the use of monocular vision to stare at the smartphone. By exploring recent literature, this study found that patients with TSB experienced retinal photopigment bleaching, which decreased light sensitivity. Typically, the sensitivity returned physiologically after several minutes. Patients with this blindness showed several symptoms. For example, they perceived shapes, outlines, or figures during the blackout. The diagnosis of TSB should be primarily based on a detailed history of smartphone use, with the differential diagnosis based on circumstance or occurrence. This diagnosis is useful to distinguish it from transient ischemic attack (TIA). Transient smartphone blindness is a basic monocular transient loss that does not require therapy or drugs. However, it was found that the reassurance of patients’ condition and suggestions on smartphone use were sufficient for the intervention. With a limited scientific study of TSB, this review is the first to raise the discussion topic. It is expected to help physicians to diagnose TSB significantly. In addition, this study will enrich the literature, particularly on the scientific and clinical mechanisms of recognising TSB for clinical diagnosis and management.

show abstract

Section: Examinationmentioning

confidence: 95%

Section: Psychophysical Evaluationmentioning

confidence: 99%

Diagnosis and management of transient smartphone blindness: A literature review

Afifah,

Fara Syafira,

Dini Dharmawidiarini

2023

JKKI

View full text Add to dashboard Cite

show abstract

“…Retinal migraine and retinal vasospasm are relatively benign causes of transient monocular vision loss [ 22 ]. Meanwhile, vascular TMVL may be an emergent disease caused by life-threatening vascular events such as carotid occlusion and thromboembolism [ 23 , 24 ]. Amaurosis fugax is one of the most common causes of TMVL, which is an acute monocular vision loss caused by a thromboembolic vascular etiology [ 25 ].…”

Section: Retinal Artery Occlusionmentioning

confidence: 99%

Risk Factors and Treatment Strategy for Retinal Vascular Occlusive Diseases

Terao

Fujino

Ahmed

2022

JCM

View full text Add to dashboard Cite

Retinal occlusive diseases are common diseases that can lead to visual impairment. Retinal artery occlusion and retinal vein occlusion are included in the clinical entity, but they have quite different pathophysiologies. Retinal artery occlusion is an emergent eye disorder. Retinal artery occlusion is mainly caused by thromboembolism, which frequently occurs in conjunction with life-threatening stroke and cardiovascular diseases. Therefore, prompt examinations and interventions for systemic vascular diseases are often necessary for these patients. Retinal vein occlusion is characterized by retinal hemorrhage and ischemia, which may impair visual function via several complications such as macular edema, macular ischemia, vitreous hemorrhage, and neovascular glaucoma. Even though anti-vascular endothelial growth factor therapy is the current established first-line of treatment for retinal vein occlusion, several clinical studies have been performed to identify better treatment protocols and new therapeutic options. In this review, we summarize the current findings and advances in knowledge regarding retinal occlusive diseases, particularly focusing on recent studies, in order to provide an update for a better understanding of its pathogenesis.

show abstract