Acuity and Astigmatism Projector Slide

The Stereo Optical 8400 Acuity and Astigmatism Projector Slide is a professional diagnostic accessory designed for ophthalmic and optometric visual examinations.

This multipurpose slide combines several common testing targets in a single format, including letter-acuity charts, number-acuity charts, tumbling “E” optotypes and an astigmatic clock. This selection allows the eye-care professional to perform different visual-acuity assessments and support the evaluation of astigmatic conditions without repeatedly changing slides.

Stereo Optical projector slides are printed on selected high-quality transparent photographic film. The printed film is sealed between two sheets of optically clear glass to protect the test image, maintain the integrity of the optotypes and provide consistent projection during repeated clinical use.

The 8400 slide is compatible with A.O., Reichert, Marco and Woodlyn vision projectors. It is suitable for professional use in optometry and ophthalmology practices, vision clinics and other environments equipped for projected visual testing.

Key Features

• Combines visual-acuity and astigmatism targets
• Includes letter-acuity optotypes
• Includes number-acuity optotypes
• Features tumbling “E” tests
• Incorporates an astigmatic clock
• Multiple testing targets on one projector slide
• Printed on high-quality clear photographic film
• Film sealed between optically clear glass sheets
• Designed to preserve image and optotype integrity
• Provides consistent projection during repeated use
• Compatible with several established projector brands
• Designed for professional ophthalmic and optometric testing

Tests Included

• Letter visual-acuity test
• Number visual-acuity test
• Tumbling “E” visual-acuity test
• Astigmatic clock test