Description of Securities

Exhibit 4.8

Description of capital stock

The following is a summary of information concerning capital stock of TearLab Corporation (“us,” “our,” “we” or the “Company”) and certain provisions of our amended and restated certificate of incorporation and amended and restated bylaws currently in effect. This summary does not purport to be complete and is qualified in its entirety by the provisions of our amended and restated certificate of incorporation, including all amendments thereto, and our amended and restated bylaws, each previously filed with the Securities and Exchange Commission (“SEC”) and incorporated by reference as an exhibit to the Annual Report on Form 10-K of which this Exhibit 4.8 is a part, as well as to the applicable provisions of the Delaware General Corporation Law (the “DGCL”). We encourage you to read our certificate of incorporation, bylaws and the applicable portions of the DGCL carefully.

General

Our amended and restated certificate of incorporation authorizes two classes of stock, common stock and preferred stock. Our authorized capital stock consists of 40,000,000 shares of common stock, $0.001 par value per share, and 10,000,000 shares of preferred stock, $0.001 par value per share.

Common Stock

Voting Rights

Each holder of common stock is entitled to one vote for each share on all matters submitted to a vote of the stockholders, including the election of directors. Our amended and restated certificate of incorporation and amended and restated bylaws do not provide for cumulative voting rights. Because of this, the holders of a plurality of the shares of common stock entitled to vote in any election of directors can elect all of the directors standing for election, if they should so choose. With respect to matters other than the election of directors, at any meeting of the stockholders at which a quorum is present or represented, the affirmative vote of a majority of the voting power of the shares present in person or represented by proxy at such meeting and entitled to vote on the subject matter shall be the act of the stockholders, except as otherwise required by law. The holders of a majority of the stock issued and outstanding and entitled to vote, present in person or represented by proxy, shall constitute a quorum for the transaction of business at all meetings of the stockholders.

Dividends

Subject to preferences that may be applicable to any then outstanding preferred stock, holders of common stock are entitled to receive dividends, if any, as may be declared from time to time by the board of directors out of legally available funds.

Liquidation

In the event of our liquidation, dissolution or winding up, holders of common stock will be entitled to share ratably in the net assets legally available for distribution to stockholders after the payment of all of our debts and other liabilities and the satisfaction of any liquidation preference granted to the holders of any then outstanding shares of preferred stock.

Rights and Preferences

Holders of common stock have no preemptive, conversion, subscription or other rights, and there are no redemption or sinking fund provisions applicable to the common stock. The rights, preferences and privileges of the holders of common stock are subject to and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate in the future.

Preferred Stock

Our board of directors has the authority, without further action by our stockholders, to designate and issue up to 10,000,000 shares of preferred stock in one or more series. Our board of directors may also designate the rights, preferences and privileges of each such series of preferred stock, any or all of which may be greater than or senior to those of the common stock. Subject to the determination of our board of directors, any shares of our preferred stock that may be issued in the future would generally have preferences over our common stock with respect to the payment of dividends and the distribution of assets in the event of our liquidation, dissolution or winding up.

Transfer Agents

The transfer agent for our common stock is Computershare, P.O. Box 40378, Providence, RI ###-###-####, (888) 667-7671.

Listing

Our common stock is quoted on the OTCQB under the trading symbol “TEAR”.

Delaware Anti-Takeover Statute

Our restated certificate of incorporation provides that we have opted out of the provisions of Section 203 of the Delaware General Corporation Law, or the DGCL. Section 203 of the DGCL prohibits a publicly held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years after the time the person became an interested stockholder, unless the business combination, or the transaction in which the stockholder became an interested stockholder, is approved in a prescribed manner. Since we will have opted out in the manner permitted under the DGCL, these restrictions will not apply to us.

Other Anti-Takeover Provisions of Our Restated Certificate of Incorporation and Amended and Restated Bylaws

Our restated certificate of incorporation and amended and restated bylaws contains several provisions, in addition to those pertaining to the issuance of additional shares of our authorized common stock and preferred stock without the approval of the holders of our common stock, that could delay or make more difficult the acquisition of our company through a hostile tender offer, open market purchases, proxy contest, merger or other takeover attempt that a stockholder might consider to be in such holder’s best interest, including those attempts that might result in a premium over the market price of our common stock.