LCD Digital Visual Acuity Chart
I CHART
HD SMART
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Advanced Display System
The I chart has a smart use: a 22-inch high-resolution LED backlight display. Its advanced display system provides optimal visualization and accurate results to the user.
Contrast Ratio
The I chart has smart technology that allows the users to control the contrast ratio as per the patient's needs.
Testing Various Distances
A wide range of optotypes and tests are available. Among all the optotypes the followings are used frequently:
Lea Numbers
The Lea numbers were designed by Lea Hyvärinen, which consists of five numbers, 5, 6, 9, 8, 3, 2, and 0, of the same size as the Snellen letters. The LEA numbers can be used for people who are unfamiliar with English alphabets.
English
This option displays any optotype from the English language.
Tumbling E
In 1976 Taylor created a chart using a single optotype, a stylized letter "e," in various orientations to test the visual acuity of Australian Aborigines. This has become standard for testing of illiterates and populations not familiar with the Roman alphabet.
Pediatric
We use pediatric charts for testing pediatric patients. The picture tests are used in the assessment of children's visual acuity. The commonly recognizable pictures, like chocolate, a shirt, ice cream, and a cup, were included in it.
The Snellen Eye Chart
Eye doctors have utilized the Snellen eye chart since its development in 1862. Traditionally, this eye chart contains eleven lines of block letters. The first line of the Snellen eye chart simply has the large capital “E” at the top. Each additional row contains more letters, but the letters are smaller than those found in the previous row. In order to complete this test, the patient must cover one eye. He or she then reads the letters out loud from each row, starting with the top row.
Etdrs
ETDRS stands for early treatment diabetic retinopathy study. The ETDRS test is designed to eliminate inaccuracies in the Snellen and Sloan tests. ETDRS acuity testing has become the worldwide standard for visual acuity testing, replacing the Snellen and Sloan acuity tests.
Language Types
High-resolution test images are available in 14 different languages, including English.
🌐 Why Choose Ernest Pharmaceutical Pvt. Ltd.
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Ernest Pharmaceutical Pvt. Ltd.
📧 Email: exports@ernestpharmaceuticals.com
