Topographers are used to make quick measurements of the cornea to help correct a patient’s vision. These machines come with standard features that help both the ophthalmologist and the patient see well. Most topographers are equipped with thick lenses, surgery assistance, an interactive video screen, and a variety of one-touch controls. This makes it easy for the eye surgeon or the assistant to have a clear view of the procedure with aid from the machine. It typically has the following functions, controls, and settings:

• Axial length
• Keratometry
• Anterior chamber depth
• Lens thickness
• Corneal topography
• Pupillometry
• Diameter measurements
• IOL power calculations

The topographer can adjust itself to be used for each individual eye, or for both eyes at the same time. This is a powerful machine that assists the surgeon in navigating through the procedure during an invasive surgery. The user can also adjust color scale settings, map choices, and visual axis type. 

Topographers can use small or large discs to connect to the device, which measure the shape, curvature, texture, and formation of the eye’s corneas. That way, they can act as if they are measuring the eye’s elevation. In actuality, topographers use corneal data by reconstructing other types of eye data. It uses a series of algorithms to determine how to measure each individual eye. From that, an accurate and detailed reading is given to determine what shape the eye is in. Depending on the elevation levels of the cornea, the ophthalmologist can decide if the cornea needs corrective care. 

Like any method of topography, optical topographers allow the ophthalmologist the ability to choose the map and measure elevation based on what medical needs are presented. During surgery, the cornea is measured in a quick and painless way by the topographer, measuring parts of the eye to determine the cornea’s elevation. Topography has been used to determine how to shape and mold contact lenses to fit the corneas of the eye, molding itself to the concave shape of the eyes. The machine is also essential for determining if the cornea requires special attention or corrective surgery. 

• Bon Optic
• Medmont Instruments
• Latham & Phillips Ophthalmic
• AIT Industries
• Briot USA, Inc.
• Tracey Technologies Corporation
• Topcon Medical Systems, Inc.
• Walman Instrument Group
• S4OPTIK
• EyeSysVision, Inc.
• And many more