EXHIBIT 5.1

                               OPINION OF COUNSEL


                               September 20, 1999


Loronix Information Systems, Inc.
820 Airport Road
Durango, Colorado 81301

         RE:      REGISTRATION STATEMENT ON FORM S-8

Gentlemen:

         We have examined the Registration Statement on Form S-8 to be filed
by Loronix Information Systems, Inc. (the "Company") with the Securities and
Exchange Commission on or about September 20, 1999 (the "Registration
Statement") in connection with the registration under the Securities Act of
1933, as amended, of 200,000 additional shares of Common Stock, $.001 par
value (the "Shares"), reserved for issuance under the 1999 Non-Statutory
Stock Option Plan (the "Plan"). As your counsel, we have examined the
proceedings taken and are familiar with the proceedings proposed to be taken
by you in connection with said issuance and sale of the Shares pursuant to
the Plan.

         It is our opinion that, upon completion of the proceedings being taken
or contemplated by us to be taken prior to the issuance and sale of the Shares
pursuant to the Plan, and upon completion of the proceedings being taken in
order to permit such transaction to be carried out in accordance with the
securities laws of the various states where required, the Shares, when issued
and sold in the manner referred to in the Plan and the Registration Statement,
will be legally and validly issued, fully paid and non-assessable.

         We consent to the use of our name wherever appearing in the
Registration Statement, including any Prospectus constituting a part thereof,
and any amendments thereto.



                                            Very truly yours,

                                            WILSON SONSINI GOODRICH & ROSATI
                                            Professional Corporation

                                            /s/ Wilson Sonsini Goodrich & Rosati