Company: STAA
Filing Date: 2025-08-05
Form Type: DEFA14A
Source: 0001193125-25-173098
Chunk: 8

Company: STAAR SURGICAL CO
Filing Date: 2025-08-05
Form: DEFA14A
Chunk 8
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-----|:----|:-----------------------|:----|:------------------------|
|                      |     | Name:                  |     | Stephen C. Farrell      |
|                      |     | Title:                 |     | Chief Executive Officer |

Exhibit 2.1

Execution Version

AGREEMENT AND PLAN OF MERGER

by and among

STAAR SURGICAL COMPANY,

a Delaware corporation,

ALCON RESEARCH, LLC,

a
Delaware limited liability company, and

RASCASSE MERGER SUB, INC.,

a Delaware corporation

Dated as
of August 4, 2025

Table of Contents

|                           |     |                                                                                                              |     | Page |
| SECTION 1                 
 THE MERGER                |     |                                                                                                              |     |      |
| 1.1                       |     | The Closing                                                                                                  |     |    2 |
| 1.2                       |     | The Merger                                                                                                   |     |    3 |
| 1.3                       |     | Conversion of Shares                                                                                         |     |    2 |
| 1.4                       |     | Surrender of Certificates; Stock Transfer Books                                                              |     |    3 |
| 1.5                       |     | Dissenters’ Rights                                                                                           |     |    7 |
| 1.6                       |     | Treatment of Company Long-Term Incentive Compensation                                                        |     |    7 |
| 1.7                       |     | Further Action                                                                                               |     |    8 |
| SECTION 2                 
 THE SURVIVING CORPORATION |     |                                                                                                              |     |      |
| 2.1                       |     | Certificate of Incorporation and Bylaws; Directors and Officers                                              |     |    8 |
|                           |     | SECTION 3                                                                                                    
 REPRESENTATIONS AND WARRANTIES OF THE                                                                        
 COMPANY                                                                                                      |     |      |
| 3.1                       |     | Due Organization; Subsidiaries, Etc.                                                                         |     |    9 |
| 3.2                       |     | Certificate of Incorporation and Bylaws                                                                      |     |   10 |
| 3.3                       |     | Capitalization, Etc.                                                                                         |     |   10 |
| 3.4                       |     | SEC Filings; Financial Statements                                                                            |     |   12 |
| 3.5                       |     | Absence of Changes; No Material Adverse Effect