A. Habel

Tests for color deficiency based on the pseudoisochromatic principle; a comparative study of several new tests.

L. L. Sloan, A. Habel, 1956, A.M.A. archives of ophthalmology.

New methods of rating and prescribing magnifiers for the partially blind.

L L SLOAN, A HABEL, L. L. Sloan, 1957, Journal of the Optical Society of America.

Reading aids for the partially blind; new methods of rating and prescribing optical aids.

L L SLOAN, A HABEL, L. L. Sloan, 1956, American journal of ophthalmology.

High illumination as an auxiliary reading aid in diseases of the macula.

L L Sloan, L. L. Sloan, A Habel, 1973, American journal of ophthalmology.

Problems in prescribing reading aids for partially-sighted children.

L. L. Sloan, A. Habel, 1973, American journal of ophthalmology.

Color signal systems for the red-green color blind: an experimental test of the three-color signal system proposed by Judd.

L L SLOAN, A HABEL, L. L. Sloan, 1955, Journal of the Optical Society of America.

Recognition of red and green point sources by color-deficient observers.

L L SLOAN, A HABEL, L. L. Sloan, 1955, Journal of the Optical Society of America.

Basic test kit for selection of reading aids for the partially sighted.

L. L. Sloan, A. Habel, F. Ravadge, 1974, American journal of ophthalmology.