Company: STAA
Filing Date: 2025-12-10
Form Type: DEFA14A
Source: 0001193125-25-314435
Chunk: 26

Company: STAAR SURGICAL CO
Filing Date: 2025-12-10
Form: DEFA14A
Chunk 26
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. The execution, delivery and effectiveness of this Amendment
shall not, except as expressly provided herein, operate as a waiver of any right, power or remedy of the parties under the Agreement or any of the documents delivered in connection with the Agreement.

3. . This Amendment may be executed in any number of counterparts, each of which is an original, and all of which, when
taken together, constitute one Amendment. Delivery of an executed signature page of this Amendment by facsimile or other customary means of electronic transmission (e.g., “pdf”) will be effective as delivery of a manually executed
counterpart hereof.

4. . This Amendment, and all claims or causes of action (whether in contract or tort) that may be
based upon, arise out of or relate to this Amendment, or the negotiation, execution or performance of this Amendment, shall be governed by, and construed in accordance with, the laws of the state of Delaware, without giving effect to the principles
of conflicts of law thereof.

5. . Immediately following the execution of this Amendment, Parent, as the sole
stockholder of Merger Sub, shall adopt the Agreement, this Amendment and the Transactions, including the Merger.

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A-3

IN WITNESS WHEREOF, the parties hereto have executed this Amendment No. 2 to Agreement and Plan of Merger effective as of the date first above written.

| Alcon Research, LLC       |     |                                       |
| By:                       |     | /s/ David Endicott                    |
| Name:                     |     | David Endicott                        |
| Title:                    |     | Chief Executive Officer and President |
| Rascasse Merger Sub, Inc. |     |                                       |
| By:                       |     | /s/ David Endicott                    |
| Name:                     |     | David Endicott                        |
| Title:                    |     | Chief Executive Officer and President |
| STAAR Surgical Company    |     |                                       |
| By:                       |     | /s/ Stephen C. Farrell                |
| Name:                     |     | Stephen C. Farrell                    |
| Title:                    |     | Chief Executive Officer               |

[Signature Page to Amendment No. 2 to Agreement and Plan of Merger]