Visual distortions can cause blurry or wavy vision and have different causes. Some visual distortions are emergencies, especially with sudden vision changes or severe symptoms. Age-related macular ...

A visual acuity test is an eye exam that checks how well you see the details of a letter or symbol from a specific distance. Visual acuity refers to your ability to discern the shapes and details of ...

Acuity of vision is a term used to describe the clearness or sharpness of your vision when measured at a distance of 20 feet. ‌ Visual acuity is the most common clinical measurement of how your eyes ...

The World Health Organization (WHO) International Classification of Impairment, Disabilities, and Handicaps (ICIDH) system is used to classify the types of visual impairment. This system, as the name ...

either having very poor visual acuity (3/60 to 6/60) and having a full field of vision or having moderate visual acuity (up to 6/24) and reduced field of vision or having moderate visual acuity (up to ...

Two recent clinical reports of retinal gene therapy with adeno-associated virus (AAV) vectors in patients with Leber’s congenital amaurosis showed initial gains in visual function that subsequently ...