EXHIBIT 5.1


                                                              August 1, 2001


Fonar Corporation
110 Marcus Drive
Melville, New York  11747

     Re:  Fonar Corporation
          Registration Statement on Form S-3

Gentlemen:

     I  have  represented  Fonar  Corporation,   a  Delaware   corporation  (the
"Company"),  in connection  with the preparation of the  registration  statement
filed with the Securities and Exchange Commission on Form S-3 (the "Registration
Statement")  relating to the proposed  issuance of up to  9,900,000  shares (the
"Shares") of the Company's common stock, par value $.0001 per share (the "Common
Stock") in connection with conversion or payment of the Company's 4% Convertible
Debentures due June 30, 2002 (the  Debentures)  and the exercise of the Purchase
Warrants and Callable  Warrants  issued in connection  with the Debentures  (the
"Warrants").  In this  connection,  I have  examined  originals or copies of the
Debentures,  the Warrants and the Purchase Agreement and Registration  Agreement
dated May 24, 2001 pursuant to which the Debentures and Warrants were issued and
the  underlying   shares  of  common  stock  are  being   registered  under  the
Registration  Statement.  I have also examined originals or copies of such other
documents,  corporate  records,  certificates  of  public  officials  and  other
documents as I deemed necessary to examine for purposes of this opinion.

     I am of the  opinion  that when the shares of Common  Stock  covered by the
Registration  Statement  have been  issued in  accordance  with the terms of the
Debentures  and Warrants,  such shares of Common Stock will be duly  authorized,
validly issued, fully paid and nonassessable.

     I hereby  consent  to the  filing  of this  Opinion  as an  Exhibit  to the
Registration Statement.

                                                          Very truly yours,

                                                           /s/  Henry T. Meyer
                                                           Henry T. Meyer, Esq.