Codes and Frequencies
For sample adults age 55 and older who were not blind in both eyes, VDIFSEEFREND indicates if the respondent could see "well enough to recognize friend across street" regardless if they were wearing glasses or contacts. In other words, the question was asked to ascertain the respondent's best vision, even when respondents wore their glasses or contact lenses, if that's how they saw best. Respondents could answer "yes" or "no" to VDIFSEEFREND.
Other variables related to vision problems are available in 1984.
- CONTACTS Uses contact lenses, 1971, 1979-1981, 1984
- GLASSES Uses eyeglasses (prescription or non-prescription), 1971, 1979-1981, 1984
- GLASSESRX Uses prescription eyeglasses 1984 only
- LENSIMPLANT Has a lens implant, 1984 only
- VDIF Had trouble seeing with one or both eyes, even when wearing glasses, 1984 only
- VDIFAMOUNT Amount of vision trouble. 1984 only
- VDIFPEPL2FT, Sees enough to recognize the features of people if they are within two or three feet, 1984 only
- VDIFREADNEWS Sees enough to read newspaper, 1984 only
- VDIFSEETV Sees enough to watch TV, 1984 only
- VDIFSTEPCURB Sees enough to step off curb or step, 1984 only
- VDIFREADMAGL Uses magnifying glass to read, 1984 only
- 1984: Sample persons age 55+ who are not blind in both eyes.
- 1984 : SAMPWEIGHT