As a result of recent news there is a lot of concern now about driving tests for all older drivers. On the other hand, there is concern that legislation based on age alone is discrimination.

I think it is. There should be a testing procedure which is more effective than what we have now and it should be individualized for drivers of all ages.

Start with the eye tests. An eye doctor can give a much more sophisticated exam in a less intimidating environment. This should be done much more often than five years. Eyesight does tend to diminish long before age 85. That's why we wear glasses.

One new question at the end of the exam could be a recommendation to be tested again in two, three or five years, depending on the individual results. This can even account for variation due to improvement of eyesight, something recent research now makes possible.

What about general physical condition? That may be even more important and we do not yet have convenient scientific tests. The behind-the-wheel spin around the block or a similar simulator is about the best we have.

Again the examiner at the end of the exam can make a recommendation as to the interval before the next one. But for everyone it must be in person, not by mail. One of the most important times for this exam should be at any age after any accident or major driving violation! If there is repetition, the examiner could recommend more frequent testing or an alternative including suspension of the license. For new drivers it might be go back to the start on qualification for driving. At that point no driving for six months may be quite serious.

What I am thinking about when I say an alternative recommendation is the really big problem of an attitude problem. Reckless driving, drag racing, distractions such as cell phones and especially substance abuse need urgent attention. If there are repeat offenses or driving even after the license has been revoked there will be need for other therapy or punishment. Just mailing in a renewal every five years is useless and testing after age 85 only misses most of the problems.

Do both. Test more frequently and effectively but on the basis of individual need, not just age. If a 98-year-old driver does very well the examiner can say, come back again in five years.

STERLING ALAM of Attleboro is a retired gerontologist.