Functional impairment with minimal macular damage in femtosecond laser plasma injury: case report

Freitas, Cristina; Moreno-Perdomo, Natacha; Gentil, Rita; Baptista, António M. G.; Macedo, António Filipe

doi:10.1590/s0004-27492013000500015

Cited by 6 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…8b), but welding arc damage can also extend beyond the foveola [174,214,[216][217][218][219]. Similar injuries can be caused by viewing brilliant light from an electrical flash [220], lightning [221,222], or plasma produced by a femtosecond laser [223,224].…”

Section: Welder's and Flash Maculopathymentioning

confidence: 99%

Clinical Photic Retinopathy: Mechanisms, Manifestations, and Misperceptions

Mainster¹,

Ajlan²

2020

Albert and Jakobiec's Principles and Practice of Ophthalmology

View full text Add to dashboard Cite

This chapter presents an analysis of photic retinopathy's mechanisms, manifestations, and misperceptions. Photic retinopathy is also known as retinal phototoxicity. It causes acute retinal damage in solar or welder's maculopathy and in operating microscope or endoilluminator injury. Retinal phototoxicity occurs when intraretinal photochemical reactions from intense light exposure transiently overwhelm retinal defensive and repair systems. Experimental studies in primates and

show abstract

Section: Welder's and Flash Maculopathymentioning

confidence: 99%

Clinical Photic Retinopathy: Mechanisms, Manifestations, and Misperceptions

Mainster¹,

Ajlan²

2020

Albert and Jakobiec's Principles and Practice of Ophthalmology

View full text Add to dashboard Cite

show abstract

“…2 Since then, there has been only one report detailing one individual, who had suffered a similar retinal injury. 3 In this paper, we present a case series of three patients with bilateral macular injuries produced by simultaneous exposure to plasma radiation.…”

Section: Introductionmentioning

confidence: 99%

Case series of photic maculopathy associated with exposure to a plasma flash induced by a femtosecond laser

et al. 2022

View full text Add to dashboard Cite

Background and Objectives: Photic maculopathy resulting from laser-induced plasma flash has been rarely reported, and the corresponding mechanism of the injury is still unclear. We present a case series of three patients with bilateral macular injuries produced by exposure to the plasma radiation from femtosecond laser tightly focusing. Study Design/Materials and Methods: Funduscopic findings were accompanied mainly by optical coherence tomography (OCT) investigation of the macula during the follow-up period. Results: All patients shared similar clinical symptoms soon after the initial injury, including reduced visual acuity and central scotomas. It was acutely characterized by foveolar yellowish faceted lesions upon fundus examination. The main OCT finding in the acute stage was a hyper-reflective area involving all foveolar retinal layers without retinal edema. Repeat OCT evaluation during the latter stages revealed that the retinal changes were reversible, but delineated mild pathology at the outer foveal retina. This retinal structural recovery was accompanied by improvements in visual acuity and central scotomas as well. Conclusions: Prolonged viewing of a plasma flash induced by a focused femtosecond laser without eye protection may produce persistent damage to the retina. We believe that a photochemical process similar to the mechanism of a solar burn or welder's maculopathy may cause retinal damage in this case series.

show abstract

“…Особенно актуален данный процесс при попадании фемтосекундного излучения на ткани глаза, на кото-рых происходит фокусировка излучения. Это может приводить к коагуляции участков сетчатки, что яв-ляется значительным фактором опасности повреждения зрительных функций глаза [4]. Большая часть работ, направленных на изучение данного вопроса, основана на экспериментальных данных и не рас-сматривает возникновение нелинейных процессов [5,6].…”

Section: Introductionunclassified