FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person *   Versant Venture Capital IV, L.P. 2. Date of Event Requiring Statement (Month/Day/Year) 10/30/2018 3. Issuer Name and Ticker or Trading Symbol Ophthotech Corp. [OPHT] (Last) (First) (Middle) ONE SANSOME STREET, SUITE 3630 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) SAN FRANCISCO, CA 94104 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 5,012,624 I See footnote (1) (2) Common Stock 31,577 I See footnote (1) (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Versant Venture Capital IV, L.P. ONE SANSOME STREET SUITE 3630 SAN FRANCISCO, CA 94104	Â	  X	Â	Â
Versant Side Fund IV, L.P. ONE SANSOME STREET SUITE 3630 SAN FRANCISCO, CA 94104	Â	  X	Â	Â
Versant Ventures IV, LLC ONE SANSOME STREET SUITE 3630 SAN FRANCISCO, CA 94104	Â	  X	Â	Â

Signatures

/s/ Robin L. Praeger, Managing Director of Versant Ventures IV, LLC, general partner of Versant Venture Capital IV, L.P.		11/09/2018
**Signature of Reporting Person		Date
/s/ Robin L. Praeger, Managing Director of Versant Ventures IV, LLC, general partner of Versant Side Fund IV, L.P.		11/09/2018
**Signature of Reporting Person		Date
/s/ Robin L. Praeger, Managing Director of Versant Ventures IV, LLC		11/09/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This report on Form 3 is jointly filed by Versant Venture Capital IV, L.P. ("VVC IV") and Versant Side Fund IV, L.P. ("VSF IV"). Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such entity is a beneficial owner of such securities for the purpose of Section 16 or for any other purpose.
(2)	These securities are held of record by VVC IV. Versant Ventures IV, LLC ("VV IV") is the sole general partner of VVC IV and may be deemed to have voting and investment power over the securities held by VVC IV and as a result may be deemed to have beneficial ownership over such securities. Brian G. Atwood, Samuel D. Colella, Ross A. Jaffe, William J. Link, Rebecca B. Robertson, Bradley Bolzon, Ph.D., Charles M. Warden, Kirk G. Nielsen, Thomas Woiwode and Robin L. Praeger are managing directors of VV IV and share voting and dispositive power over the shares held by VVC IV; however, they each disclaim beneficial ownership of such securities, except to the extent of their pecuniary interests therein.
(3)	These securities are held of record by VSF IV. VV IV is the sole general partner of VSF IV and may be deemed to have voting and investment power over the securities held by VSF IV and as a result may be deemed to have beneficial ownership over such securities. Brian G. Atwood, Samuel D. Colella, Ross A. Jaffe, William J. Link, Rebecca B. Robertson, Bradley Bolzon, Ph.D., Charles M. Warden, Kirk G. Nielsen, Thomas Woiwode and Robin L. Praeger are managing directors of VV IV and share voting and dispositive power over the shares held by VSF IV; however, they each disclaim beneficial ownership of such securities, except to the extent of their pecuniary interests therein.

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