Disability Glare and Hydrogel Lens Wear—Revisited

Fill light, used to helps cameras capture road traffic conditions at night, can lead to serious visual consequences for drivers. Research on disability glare from LED fill light is scarce and therefore this study explored strategies for controlling disability glare of constant-light LED traffic monitoring fill light. The threshold increment was used as an index to evaluate disability glare. The effective disability glare area of LED traffic monitoring fill light was determined based on high dynamic range technology. According to visual efficacy theory, there is a relationship between disability glare conditions and reaction times. The influencing factors include background luminance, luminance contrast and fill light luminance. The results showed that disability glare was the most intense in a range of 20 m to 30 m in front of LED fill light. To reduce the effect of disability glare on drivers, luminance contrast between small targets and the road surface should be greater than 0.5. The fill light luminance should not be greater than 100,000 cd/m2.

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Discomfort and Disability Glare from Halogen and HID Headlamp Systems

10.4271/2002-01-0010 ◽

2002 ◽

Cited By ~ 32

Author(s):

John D. Bullough ◽

Zengwei Fu ◽

John Van Derlofske

Keyword(s):

Disability Glare

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Current diagnostic tools and management modalities of Nocardia keratitis

Journal of Ophthalmic Inflammation and Infection ◽

10.1186/s12348-020-00228-w ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Mohammad Soleimani ◽

Ahmad Masoumi ◽

Sadegh Khodavaisy ◽

Mostafa Heidari ◽

Ali A. Haydar ◽

...

Keyword(s):

Risk Factors ◽

Trauma Surgery ◽

Clinical Manifestations ◽

Topical Steroid ◽

Nocardia Asteroides ◽

Diagnostic Tools ◽

Contact Lens Wear ◽

Drug Of Choice ◽

Good Visual Acuity ◽

Lens Wear

AbstractNocardia species are an uncommon but important cause of keratitis. The purpose of this review is to discus previous published papers relation to the epidemiology, etiology, diagnosis and management of Nocardia keratitis. Nocardia asteroides is the most frequently reported from Nocardia keratitis. Pain, photophobia, blepharospasm and lid swelling are mainly clinical manifestations. Usual risk factors for Nocardia keratitis are trauma, surgery, corticosteroids, and contact lens wear. Several antibiotics were used for treatment of Nocardia infection but according to studies, topical amikacin is the drug of choice for Nocardia keratitis. Topical steroid should not prescribe in these patients. In conclusion, although Nocardia keratitis is rare, early diagnosis and treatment are essential to prevent any scar formation and preserve a good visual acuity.

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