PHILADELPHIA — A pocket-sized ETDRS chart has the advantage of the ... While the Snellen chart is the most widely used eye chart, limitations apply, such as limited reproducibility, fluctuating ...

They ask a person to read letters from an eye chart known as an ETDRS chart. This chart has several rows of 5 letters, decreasing in size and, therefore, difficulty. The healthcare professional ...

One eye per patient was tested ... (The same method is employed routinely for the ETDRS Chart) Each letter on the ETDRS logMAR and the cRLM charts were scored in keeping with the principle ...

One eye of each subject was assessed ... the contour interaction provided by the surrounding letters on the ETDRS chart (see Figure 1). The display format followed that of the ETDRS convention ...

13 In 1982, when the National Eye Institute needed standardized charts for its “Early Treatment of Diabetic Retinopathy Study” (ETDRS), Dr. Rick Ferris combined the Green and Bailey-Lovie ...

The device uses the same standardized letter optotype, geometric line progression and letters of equal difficulty as the ETDRS chart ... measured visual acuity per eye between methods was 1.8 ...

According to the study, 37% of patients treated with Macugen were able to read two more lines of letters on the ETDRS eye chart after 54 weeks, compared with 20% of those who received a placebo ...

(1) In the study, 37 percent of patients treated with MACUGEN gained two lines, or 10 letters, of vision on the ETDRS eye chart at 54 weeks, compared to 20 percent of patients who received a ...