Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 November 2023

Announcements and Notices - CHANGE OF ADDRESS OF THE PRINCIPAL PLACE OF BUSINESS IN HONG KONG

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 October 2023

Announcements and Notices - VOLUNTARY ANNOUNCEMENT - THE TOTAL NUMBER OF EYE SURGERIES FOR THE THIRD QUARTER OF 2023

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 September 2023

Interim Reports - Interim Report 2023

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 August 2023

Announcements and Notices - INTERIM DIVIDEND FOR THE SIX MONTHS ENDED 30 JUNE 2023

Announcements and Notices - INTERIM RESULTS ANNOUNCEMENT FOR THE SIX MONTHS ENDED 30 JUNE 2023

Announcements and Notices - SUPPLEMENTAL ANNOUNCEMENT IN RELATION TO DISCLOSEABLE TRANSACTIONS - (1) ACQUISITION OF THE ENTIRE SHARE CAPITAL IN FREEVIS LASIK ZENTRUM MANNHEIM GMBH; (2) THE ADVANCEMENT OF THE LOAN AND (3) THE PROVISION OF THE GUARANTEE

Announcements and Notices - DISCLOSEABLE TRANSACTIONS - (1) ACQUISITION OF THE ENTIRE SHARE CAPITAL IN FREEVIS LASIK ZENTRUM MANNHEIM GMBH; (2) THE ADVANCEMENT OF THE LOAN AND (3) THE PROVISION OF THE GUARANTEE

Announcements and Notices - DATE OF BOARD MEETING

Announcements and Notices - POSITIVE PROFIT ALERT

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 July 2023

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 June 2023

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 May 2023

Announcements and Notices - SECOND AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION

Announcements and Notices - POLL RESULTS OF THE ANNUAL GENERAL MEETING HELD ON 31 MAY 2023

Announcements and Notices - POLL RESULTS OF THE EXTRAORDINARY GENERAL MEETING HELD ON 31 MAY 2023

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 April 2023

Proxy Forms - FORM OF PROXY FOR EXTRAORDINARY GENERAL MEETING TO BE HELD ON 31 MAY 2023

Circulars - (1) PROPOSED AMENDMENTS TO THE AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION AND PROPOSED ADOPTION OF THE SECOND AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION; AND (2) NOTICE OF EXTRAORDINARY GENERAL MEETING

Announcements and Notices - NOTICE OF EXTRAORDINARY GENERAL MEETING

Proxy Forms - FORM OF PROXY FOR ANNUAL GENERAL MEETING TO BE HELD ON 31 MAY 2023

Circulars - (1) GENERAL MANDATES TO ISSUE SHARES AND TO REPURCHASE SHARES; (2) DECLARATION AND PAYMENT OF A FINAL DIVIDEND; (3) RE-ELECTION OF RETIRING DIRECTORS; AND (4) NOTICE OF ANNUAL GENERAL MEETING

Announcements and Notices - NOTICE OF ANNUAL GENERAL MEETING

Annual Reports - Annual Report 2022

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 March 2023

Announcements and Notices - PROPOSED AMENDMENTS TO THE AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION AND PROPOSED ADOPTION OF THE SECOND AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION

Announcements and Notices - TERMS OF REFERENCE OF THE REMUNERATION COMMITTEE OF THE BOARD OF DIRECTORS OF THE COMPANY

Announcements and Notices - FINAL DIVIDEND FOR THE YEAR ENDED 31 DECEMBER 2022

Announcements and Notices - ANNOUNCEMENT OF ANNUAL RESULTS FOR THE YEAR ENDED 31 DECEMBER 2022

Announcements and Notices - PROFIT ALERT

Announcements and Notices - DATE OF BOARD MEETING

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 28 February 2023

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 January 2023

Announcements and Notices - LIST OF DIRECTORS AND THEIR ROLES AND FUNCTIONS

Announcements and Notices - RESIGNATION OF EXECUTIVE DIRECTOR

Monthly Returns - Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 December 2022