<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
VISION-SCIENCES, INC FORM 10-Q FOR THE THREE MONTHS ENDED SEPTEMBER 30, 1998
</LEGEND>
<CIK> 0000894237
<NAME> VISION-SCIENCES, INC
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1999             MAR-31-1998             MAR-31-1999             MAR-31-1998
<PERIOD-START>                             JUL-01-1998             JUL-01-1997             APR-01-1998             APR-01-1997
<PERIOD-END>                               SEP-30-1998             SEP-30-1997             SEP-30-1998             SEP-30-1997
<CASH>                                       4,625,759               1,897,905<F1>                   0                       0
<SECURITIES>                                         0                 993,146                       0                       0
<RECEIVABLES>                                1,303,215               1,556,285                       0                       0
<ALLOWANCES>                                   121,000                 117,000                       0                       0
<INVENTORY>                                    739,665                 681,106                       0                       0
<CURRENT-ASSETS>                             6,631,615               5,098,164                       0                       0
<PP&E>                                       3,315,009               3,285,872                       0                       0
<DEPRECIATION>                               2,611,239               2,399,602                       0                       0
<TOTAL-ASSETS>                              10,965,289               6,171,817                       0                       0
<CURRENT-LIABILITIES>                        2,433,633               2,355,299                       0                       0
<BONDS>                                              0                       0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                       192,110                 166,430                       0                       0
<OTHER-SE>                                   6,680,788               3,650,088                       0                       0
<TOTAL-LIABILITY-AND-EQUITY>                10,965,289               6,171,817<F1>                   0                       0
<SALES>                                      1,965,061<F2>           1,822,906<F3>           3,841,796<F4>           3,687,374<F5>
<TOTAL-REVENUES>                                     0                       0                       0                       0
<CGS>                                        1,545,838               1,551,412               3,110,760               3,056,627
<TOTAL-COSTS>                                        0                       0                       0                       0
<OTHER-EXPENSES>                               792,601               1,279,898               1,535,091               2,398,932
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                                   0                       0                       0                       0
<INCOME-PRETAX>                              (320,976)               (905,379)               (714,938)             (1,516,639)
<INCOME-TAX>                                         0                       0                       0                       0
<INCOME-CONTINUING>                                  0                       0                       0                       0
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                 (320,976)               (905,379)               (714,938)             (1,516,639)
<EPS-PRIMARY>                                    (.02)<F2>               (.06)<F3>               (.04)<F4>               (.10)<F5>
<EPS-DILUTED>                                        0                       0                       0                       0
<FN>
<F1>AMOUNTS ARE AS OF MARCH 31, 1998
<F2>AMOUNTS ARE FOR THE 3 MONTHS ENDED SEP 30 1998
<F3>AMOUNTS ARE FOR THE 3 MONTHS ENDED SEP 30 1997
<F4>AMOUNTS ARE FOR THE 6 MONTHS ENDED SEP 30 1998
<F5>AMOUNTS ARE FOR THE 6 MONTHS ENDED SEP 30 1997
</FN>
        

</TABLE>