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Blindness and eye disease in a Tibetan region of China: findings from a Rapid Assessment of Avoidable Blindness survey.

INTRODUCTION: The only population-based survey of blindness and visual impairment of a Tibetan population was conducted in the Tibet Autonomous Region in 1999. METHODS AND ANALYSIS: The Rapid Assessment of Avoidable Blindness methodology was used to conduct a survey of Kandze Tibetan Autonomous Prefecture, Sichuan Province of China in the Fall 2017. Using the 2010 census, 100 clusters of 50 participants aged 50 years or older were randomly sampled using probability proportionate to size. RESULTS: Among the 5000 people enumerated, 4763 were examined (95.3% response). The age-adjusted and sex-…

Avoidable childhood blindness in a high-income country: findings from the British Childhood Visual Impairment and Blindness Study 2.

BACKGROUND/AIMS: Addressing childhood visual disability is an international priority, with data on causes needed to plan, implement and evaluate public health and clinical care. We have examined the contribution of 'avoidable' blinding disorders to childhood visual impairment, severe visual impairment and blindness (VI/SVIBL) in the UK. METHODS: National prospective observational longitudinal study, the British Childhood Visual Impairment and Blindness Study 2 (BCVIS2), of children (aged 18 years or under) newly diagnosed with vision worse than 0.48 logMAR (logarithm of the minimum angle of r…

Acute onset of blindness during labor: report of a case of transient cortical blindness in association with HELLP syndrome.

The coincidence of HELLP syndrome and cortical blindness is an uncommon but very dramatic event, for the patient as well as the obstetrician. This report describes the first case of HELLP-syndrome-associated cortical blindness occuring suddenly in the third stage of labour. There were only modest correlates of cortical blindness in cerebral CT, MRI and angiography findings, but no signs of a posterior leucoencephalopathy syndrome. Mother and baby were discharged from hospital to outpatient care in good health on the 12th day.

Time Trends of Etiologies of Blindness in Israel 2009-2020:Have Methods to Decrease Leading Causes of Blindness Been Exhausted?

PURPOSE: To perform a nationwide analysis of trends in the incidence of etiologies for legal blindness in Israel during 2009-2020, and to compare the results with those of the previous decade. DESIGN: Descriptive, retrospective population-based trend study. METHODS: Data were retrieved from the Israeli National Registry of the Blind during 2009-2020. Data obtained included demographics, years of registration, and causes. Primary and secondary outcomes were the incidence of new certified blindness cases and its comparison with that of the previous decade, respectively. RESULTS: The age-stand…

Excitatory and inhibitory networks diverge following early blindness.

Early visual deprivation profoundly reshapes cortical functional organization, yet the contribution of distinct neuronal populations to larg … ure despite relatively preserved global network organization. These findings demonstrate that early blindness induces coordinated yet neuronal identity-dependent mesoscale network plasticity, linking mouse cortical dynamics with systems-level evidence of cross-modal reorganization in blind individuals.

How blindness shapes personality: a neuro-ecological account.

INTRODUCTION: The established link between personality and psychological well-being underscores the need to understand how major life changes, such as vision loss, reshape an individual's disposition. While previous research has produced inconsistent findings, the roles of concurrent environmental factors and underlying neural mechanisms have remained largely unexplored. METHODS: This study employed an integrated neuro-ecological framework to investigate how blindness influences personality. We recruited 46 blind participants and 41 sighted controls, who completed comprehensive assessments in…

The dermal medical rhinoplasty: From blindness to safety.

The non-surgical rhinoplasty is presented as safe by majority of authors, with very rare risk of vision loss and skin necrosis. Publications … ow to manage the complications, it's a reliable and safe procedure. On the other hand, an update on blindness from filler published in Aesthetic Surg J in 2024 report 48 cases in 3 years from 2015 and 365 new cases in the following 3 years from 2019. This dramatic increase in the number of cases of vision loss prove our current safety procedures are flawed. …

Postoperative Blindness Following Posterior Cervical Surgery: Case Reports.

Posterior cervical surgery blindness (PCSB) is a rare but serious complication with significant implications for affected patients. Herein, we retrospectively analyzed two cases of postoperative blindness. Case 1: A 51-year-old with basilar invagination, atlantoaxial dislocation, and syringomyelia. Blindness, caused by central retinal artery occlusion, occurred after atlantoaxial decompression and fusion in the prone position. After the arterial thrombolytic therapy, the vision gradually improved. Case 2: A 58-year-old with radiculopathy-type cervical spondylosis. Blindness, caused by vitreous…

Visual impairment and blindness in Alkharj, Saudi Arabia.

OBJECTIVE: To determine the incidence and causes of visual impairment and blindness among patients attending eye clinics in a tertiary care setting. METHODS: The retrospective study was conducted in Alkharj city, Saudi Arabia, from May to November 2022, and comprised records of patients who visited eye clinics of two main hospitals in the city with complaints of low vision or blindness between January 2021 and December 2021. Medical history, family history and ophthalmological examination results of each patient were reviewed, and the causes and frequency of occurrence of visual impairment an…

[Eye Involvement and Risk of Blindness in Sarcoidosis].

UNLABELLED: Sarcoidosis is a multisystemic inflammatory disease of unknown etiology characterized by granulomas formation. Pulmonary involve … involvement occurred in older patients (mean age 70 years) and was associated with a higher risk of blindness. CONCLUSIONS: Ocular involvement was frequent in our population and behaved as described in international literature. Age seems to be associated with uveitis subtype and posterior pole involvement could identify a higher risk of non-recoverable dec …

Akinetopsia: a systematic review on visual motion blindness.

BACKGROUND: Akinetopsia, or visual motion blindness, is a perceptual distortion characteristic of Alice in Wonderland syndrome in which people see moving objects as disjointed 'jumps' or 'freeze frames.' Despite its profound impact, the condition remains poorly understood beyond the established centrality of cortical area V5/MT in visual motion perception. METHODS: We carried out a systematic review of case descriptions on motion blindness, including those where additional symptoms were described. RESULTS: Our search yielded data on 25 clinical and 27 experimental cases, the latter induced b…

Developing cortex is functionally pluripotent: Evidence from blindness.

How rigidly does innate architecture constrain function of developing cortex? What is the contribution of early experience? We review insights into these questions from visual cortex function in people born blind. In blindness, occipital cortices are active during auditory and tactile tasks. What 'cross-modal' plasticity tells us about cortical flexibility is debated. On the one hand, visual networks of blind people respond to higher cognitive information, such as sentence grammar, suggesting drastic repurposing. On the other, in line with 'metamodal' accounts, sighted and blind populations sh…

A case of blindness caused by Lemierre's syndrome.

KEY CLINICAL MESSAGE: We describe a patient who lost her vision because of Lemierre's syndrome. Ophthalmologic complications of Lemierre's syndrome are rare, and very few cases have been reported. Clinicians need to recognize that it is a serious condition that can lead to blindness in some cases. ABSTRACT: Lemierre's syndrome is a systemic septic embolism resulting from thrombophlebitis of the internal jugular vein. We report a case of blindness caused by Lemierre's syndrome, despite prompt diagnosis and early treatment. A 36-year-old woman was transported to our hospital. She presented with…

Potential blindness from nutritional xerophthalmia in autistic patients.

BACKGROUND: Vitamin A is vital to retinal rod function and epithelial cell differentiation. Although uncommon in the developed world, vitamin A deficiency (VAD) secondary to poor diets or gastrointestinal disease has been reported and can lead to xerophthalmia, which is characterized by night blindness and a spectrum of ocular surface changes. Patients with autism spectrum disorder have been shown to have restrictive diets secondary to sensory issues leading to rejection of foods except for those of certain color or texture. METHODS: We present a case series of 6 pediatric patients with autis…

Congenital Stationary Night Blindness: Clinical and Genetic Features.

Congenital stationary night blindness (CSNB) is an inherited retinal disease (IRD) that causes night blindness in childhood with heterogeneous genetic, electrophysical, and clinical characteristics. The development of sequencing technologies and gene therapy have increased the ease and urgency of diagnosing IRDs. This study describes seven Taiwanese patients from six unrelated families examined at a tertiary referral center, diagnosed with CSNB, and confirmed by genetic testing. Complete ophthalmic exams included best corrected visual acuity, retinal imaging, and an electroretinogram. The effe…

Обзор корнеальной слепоты: причины и управление.

Корнеальная слепота означает группу нарушений зрения, которые изменяют транспарентность кукурузы, вызывая роговицу и слепоту. К основным причинам кукурузной слепоты относятся инфекционные причины, то есть бактерии, вирусы, грибы и протозоа. Наиболее распространенными предрасположенными факторами являются травма, использование контактных линз или применение стероидных препаратов. К числу других заболеваний относятся трахома, сухие глаза, кератокон, офтальмия новорожденных и неинфекционный увейт. Для лечения кукурузной слепоты используются различные методы лечения, включая трансплантацию органов

Совпадение в аннотации оригинала
Corneal blindness refers to a group of eye disorders that change the corneal transparency, causing corneal scarring and blindness. The leading causes of corneal blindness include infectious causes, i.e., due to bacteria, viruses, fungi, and protozoa. The most common predisposing factors are trauma, contact lens usage, or the use of steroid medications. The v…