In an optical lab, an edger is used to cut, grind, and shape lenses to fit specific frames

A hand beveled can be used in an optical lab to create beveled edges on lenses for several reasons, including:

• Preventing chipping: Beveled edges can help prevent lenses from chipping.
• Safety: Beveled edges can improve safety for the wearer.
• Durability: Beveled edges can make lenses more durable.
• Conforming to frame curvature: Beveled edges can be hand-beveled to conform to the curvature of a frame.
• Holding lens in place: Beveled edges can help keep lenses secure in frames.

A bevel is a sloped or angled surface that’s created by cutting or grinding material at an angle other than 90°. Beveled edges are often created at a 45° angle, but custom bevels can be made at any degree.

In an optical lab, a tracer is a machine that traces the shape of a frame so that the lens can be cut to fit it. The tracer can use a stylus to trace the inside bevel of a metal or plastic frame, or it can trace the outside of a semi-rimless frame’s pattern or demo lens. The tracer then sends the shape information to an edger, which cuts the lens to the correct shape.

WIDE VERITY OF EQUIPMENT/ TESTING

An autorefractor is a machine that measures a person’s refractive error and prescription for glasses or contact lenses by measuring how light changes as it enters the eye.

An eye doctor uses a pressure machine, also called a tonometer, to measure the pressure inside your eyes, a process called tonometry. This test is used for a variety of purposes, including

• Screening for glaucoma: Tonometry is a common part of routine eye exams and can help identify signs of glaucoma, a group of eye diseases that can damage the optic nerve.
• Monitoring treatment: Tonometry can be used to track how well glaucoma treatment is working.
• Monitoring medications: Tonometry can be used to ensure that medications aren’t causing high intraocular pressure (ocular hypertension) as a side effect

A visual field test, also known as a perimetry test, measures how much vision you have in each eye and how your vision may have changed over time. It’s a painless test that’s part of a routine eye exam and helps doctors understand your vision.

Optical coherence tomography (OCT) and fundus photography are both non-invasive imaging methods that can be used to examine the back of the eye. OCT scans are used to create 3D images of the retina, while fundus photography uses a camera and lenses to take 2D images.