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 ...

An improvement of + 23 letters is equivalent to reading an additional four lines of letters on the ETDRS eye chart, the standardized eye chart used to measure visual acuity in clinical trials.

eye chart at month 24 between the treatment and control groups. Alimera reported that data through month 36 for the Full Analysis Set in Trial A demonstrated statistically significant therapeutic ...

BCVA is measured on an Early Treatment of Diabetic Retinopathy Study (ETDRS) eye chart in which a line of improvement corresponds to five letters of improvement. When measured at week 12 ...

Improvement in visual acuity gaining 15 or more letters from baseline on ETDRS Eye Chart 23.0% 4.9% p=0.011 Loss of 15 or more letters from baseline on ETDRS Eye Chart 4.6% 31.0% p<0.0001 The ...