Optical & Optometry Glossary - Eyecare Terms - Ocuco

Glossary

Navigate the language of eyecare with confidence. From clinical terms to practice management concepts, find clear definitions of the key language used across the optical industry.

A

Afferent Pupillary Defect

What is an Afferent Pupillary Defect (APD)? An afferent pupillary defect (APD) is an abnormal pupil response caused by reduced afferent (sensory) input from…

D

Distance Visual Acuity (DVA)

What Is Distance Visual Acuity (DVA)? Distance visual acuity (DVA) measures how clearly a person can see objects at a…

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Electronic Health Record (EHR)

What Is an Electronic Health Record (EHR)? An electronic health record (EHR) is a digital record of a patient’s health…

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General Ophthalmic Services (GOS)

What are General Ophthalmic Services (GOS)? General Ophthalmic Services (GOS) is the NHS framework under which sight tests and optical…

General Optical Council (GOC)

What is the General Optical Council (GOC)? The General Optical Council (GOC) is the statutory regulator for optical professions and…

I

Intraocular Pressure (IOP)

What Is Intraocular Pressure (IOP)? Intraocular pressure (IOP) is the pressure created by the fluid inside the eye. A healthy…

N

Near Point of Convergence (NPC)

What is Near Point of Convergence (NPC)? Near Point of Convergence (NPC) is the closest distance from a person’s face…

Near Vision

What is Near Vision? Near vision is the ability to see and resolve fine detail at close range. It applies…

V

Visual Acuity

What is Visual Acuity? Visual acuity (VA) refers to the ability of the visual system to resolve spatial detail As…