Sydney Eye Hospital Foundation is dedicated to raising funds for the largest specialist eye hospital in the southern hemisphere. Community support ensures improved access and state-of-the-art care for more than 70,000 patients every year.

Sydney Eye Hospital Foundation

The Sydney Eye Hospital Foundation raises funds for the Sydney Eye Hospital, supporting access to eye care, research, training, and technology for patients.  

Sydney Eye Hospital Foundation | 1,965 followers on LinkedIn. We know how precious sight is.  | Fundraising activities for Sydney Eye Hospital to ensure that it is the centre for ophthalmic excellence in New South Wales by providing Fellowships, equipment and research into eye diseases.

Medical Specialist and Educator

Max Conway

Associate Professor of Neuro-ophthalmology and Ophthalmic Education

Clare Fraser

Director of Research at Save Sight Institute

Mark Gillies

Consultant Rheumatologist at St George Public Hospital

Bill Giannakopoulos

🌟 𝗘𝘅𝗰𝗶𝘁𝗶𝗻𝗴 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝗡𝗲𝘄𝘀 𝗮𝘁 𝗦𝘆𝗱𝗻𝗲𝘆 𝗘𝘆𝗲 𝗛𝗼𝘀𝗽𝗶𝘁𝗮𝗹 𝗙𝗼𝘂𝗻𝗱𝗮𝘁𝗶𝗼𝗻! 🌟 We are thrilled to announce the appointment of two exceptional leaders to our Board: 👩💼 Megan McBain - Head of Tax at Aware Super . Megan joins us as Chair of the Investment Finance Committee. Her expertise will be invaluable in guiding our financial strategies and supporting our mission. 👩⚕️ Jennie Barry - General Manager of Prince of Wales Hospital & Sydney/Sydney Eye Hospital. Jennie brings a wealth of experience in healthcare management and will play a crucial role in shaping our governance and strategic direction, with a strong focus on enhancing the experience and outcomes for both our patients and staff. Please join us in welcoming Megan and Jennie to the Foundation! We look forward to their contributions as we continue to enhance eye care services in our community. #SydneyEyeHospitalFoundation #NewBoardMembers #Leadership #HealthcareExcellence

World Keratoconus Day is observed on November 10 every year. It is a National Keratoconus Foundation-funded initiative that is part of the Gavin Herbert Eye Institute at UC Irvine. Keratoconus, also known as ‘K.C.,’ is a non-inflammatory eye disorder that damages the cornea. A person with KC experiences a change in their cornea, which loses its round dome shape and eventually thins and weakens. This alteration causes the cornea to expand into a cone-like shape, resulting in substantial vision loss. This day is committed to raising awareness and sharing resources about keratoconus. #keratoconus #WorldKeratoconusDay Disclaimer: This image is an artistic interpretation of how a sunset might appear to someone with Keratoconus, highlighting common visual effects such as blurring, halos, and light scattering. It is not a medically accurate representation and may not reflect each individual's experience with Keratoconus. For more information on Keratoconus, please consult a qualified eye care professional.

𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝘁𝗵𝗲 𝟮𝟬𝟮𝟰 𝗛𝗼𝗻𝗼𝗿𝗮𝗿𝘆 𝗖𝗼𝗿𝗻𝗲𝗮𝗹 𝗙𝗲𝗹𝗹𝗼𝘄, 𝗗𝗿 𝗔𝗶𝘀𝗵𝗮𝗵 𝗔𝗹𝗱𝗵𝗮𝗻𝗵𝗮𝗻𝗶, 𝗮𝗻 𝗼𝗽𝗵𝘁𝗵𝗮𝗹𝗺𝗼𝗹𝗼𝗴𝗶𝘀𝘁 𝗳𝗿𝗼𝗺 𝘁𝗵𝗲 𝗨𝗻𝗶𝘁𝗲𝗱 𝗔𝗿𝗮𝗯 𝗘𝗺𝗶𝗿𝗮𝘁𝗲𝘀! Aishah was awarded a Fellowship Grant through Sydney Eye Hospital Foundation and has joined the hospital for 12-months. “𝑅𝑒𝑐𝑒𝑖𝑣𝑖𝑛𝑔 𝑡ℎ𝑖𝑠 𝐹𝑒𝑙𝑙𝑜𝑤𝑠ℎ𝑖𝑝 𝑖𝑠 𝑎 𝑝𝑖𝑣𝑜𝑡𝑎𝑙 𝑠𝑡𝑒𝑝 𝑖𝑛 𝑚𝑦 𝑗𝑜𝑢𝑟𝑛𝑒𝑦 𝑎𝑠 𝑎𝑛 𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑜𝑙𝑜𝑔𝑖𝑠𝑡. 𝐼𝑡 𝑝𝑟𝑜𝑣𝑖𝑑𝑒𝑠 𝑎𝑛 𝑖𝑛𝑣𝑎𝑙𝑢𝑎𝑏𝑙𝑒 𝑜𝑝𝑝𝑜𝑟𝑡𝑢𝑛𝑖𝑡𝑦 𝑡𝑜 𝑑𝑒𝑒𝑝𝑒𝑛 𝑚𝑦 𝑒𝑥𝑝𝑒𝑟𝑡𝑖𝑠𝑒 𝑖𝑛 𝑐𝑜𝑚𝑝𝑙𝑒𝑥 𝑐𝑜𝑟𝑛𝑒𝑎𝑙 𝑑𝑖𝑠𝑒𝑎𝑠𝑒𝑠 𝑎𝑛𝑑 𝑐𝑢𝑡𝑡𝑖𝑛𝑔-𝑒𝑑𝑔𝑒 𝑟𝑒𝑠𝑒𝑎𝑟𝑐ℎ, 𝑤ℎ𝑖𝑙𝑒 𝑐𝑜𝑛𝑡𝑖𝑛𝑢𝑖𝑛𝑔 𝑚𝑦 𝑐𝑜𝑚𝑚𝑖𝑡𝑚𝑒𝑛𝑡 𝑡𝑜 𝑡𝑒𝑎𝑐ℎ𝑖𝑛𝑔 𝑎𝑛𝑑 𝑠𝑒𝑟𝑣𝑖𝑛𝑔 𝑢𝑛𝑑𝑒𝑟𝑠𝑒𝑟𝑣𝑒𝑑 𝑐𝑜𝑚𝑚𝑢𝑛𝑖𝑡𝑖𝑒𝑠. 𝐼 𝑎𝑚 𝑒𝑥𝑐𝑖𝑡𝑒𝑑 𝑡𝑜 𝑎𝑑𝑣𝑎𝑛𝑐𝑒 𝑚𝑦 𝑠𝑘𝑖𝑙𝑙𝑠 𝑎𝑛𝑑 𝑐𝑜𝑛𝑡𝑟𝑖𝑏𝑢𝑡𝑒 𝑡𝑜 𝑡ℎ𝑒 𝑓𝑢𝑡𝑢𝑟𝑒 𝑜𝑓 𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑜𝑙𝑜𝑔𝑦.” You can read more about Aishah and all our 2024 mid-year Fellows on our website. Visit https://lnkd.in/gbzJxrCe #CornealDisease #MedicalFellowship #EyeHealth #Ophthalmology #ProfessionalDevelopment #SEHFFellows

🎉 𝗪𝗶𝗻 𝗮 $𝟭𝟬,𝟬𝟬𝟬 𝗙𝗹𝗶𝗴𝗵𝘁 𝗖𝗲𝗻𝘁𝗿𝗲 𝗩𝗼𝘂𝗰𝗵𝗲𝗿! ✈️💰 Grab your Raffle 25 tickets by 11:59 PM AEST on Wednesday, November 6, for a chance to win the incredible $250K First Prize Pack AND be entered into the Early Bird Bonus Draw for a $10K Flight Centre Voucher! Each ticket you buy gives you an extra entry into the $10K Early Bird Draw PLUS the chance to win the $250K Raffle First Prize Pack, featuring a $125K BMW X4, a $64K Mini Cooper SE, and over $60K in cashable gold bullion! 🚗✨ Don’t miss out—get your ticket today and support Sydney Eye Hospital Foundation! https://sehf.au/raffle #PlayForPurpose #Raffle #WinBig #TravelDreams #SupportSydneyEyeHospital #SEHF

🎉 𝗖𝗲𝗹𝗲𝗯𝗿𝗮𝘁𝗶𝗻𝗴 𝗮 𝗠𝗶𝗹𝗲𝘀𝘁𝗼𝗻𝗲 𝗶𝗻 𝗘𝘆𝗲 𝗖𝗮𝗿𝗲! 🎉 On 23 October 2024, we officially opened the Gadigal Eye Clinic at Sydney Eye Hospital, a significant step forward in providing essential eye care to Indigenous Australians living in regional and remote NSW. The ceremony began with a heartfelt Welcome to Country by Elder Aunty Barb Simms-Keely and featured a Cleansing Ceremony led by Kevin Heath. We were honoured to have distinguished guests, including The Hon Ryan Park MP and The Hon David Harris MP, who highlighted the urgent need for improved health outcomes for Aboriginal and Torres Strait Islander peoples. As part of our commitment to accessibility, we’re excited to introduce “𝗧𝗲𝗹𝗲-𝗩𝗶𝘀𝗶𝗼𝗻,” a new telehealth initiative that connects patients in remote areas to specialists, drastically reducing the need for travel. Patients like Gerald Brennan, who previously travelled over 626 kilometres for treatment, can now receive care just minutes from home. As Gerald said, “𝑁𝑜𝑤, 𝑤𝑖𝑡ℎ 𝑡ℎ𝑒 𝑣𝑖𝑟𝑡𝑢𝑎𝑙 𝑐𝑙𝑖𝑛𝑖𝑐 𝑙𝑖𝑛𝑘𝑒𝑑 𝑡𝑜 𝑡ℎ𝑒 𝐺𝑎𝑑𝑖𝑔𝑎𝑙 𝐸𝑦𝑒 𝐶𝑙𝑖𝑛𝑖𝑐, 𝐼 𝑐𝑎𝑛 𝑔𝑒𝑡 𝑡ℎ𝑒 𝑐𝑎𝑟𝑒 𝐼 𝑛𝑒𝑒𝑑 𝑗𝑢𝑠𝑡 𝑎 𝑓𝑖𝑣𝑒-𝑚𝑖𝑛𝑢𝑡𝑒 𝑑𝑟𝑖𝑣𝑒 𝑓𝑟𝑜𝑚 ℎ𝑜𝑚𝑒.” Learn more about what the opening of the Gadigal Eye Clinic means for the people of NSW here: https://sehf.au/gadigal Thank you to all our supporters and partners in making this vision a reality! Together, we’re closing the gap in eye health. #GadigalEyeClinic #EyeHealth #IndigenousHealth #Telehealth #ClosingTheGap

𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝘁𝗵𝗲 𝟮𝟬𝟮𝟰 𝗩𝗶𝘁𝗿𝗲𝗼𝗿𝗲𝘁𝗶𝗻𝗮𝗹 𝗙𝗲𝗹𝗹𝗼𝘄, 𝗗𝗿 𝗔𝗶𝗻𝗮𝗹 𝗔𝗱𝗹𝗶𝗻 𝗕𝗶𝗻𝘁𝗶 𝗡𝗮𝗳𝗳𝗶, 𝗮 𝘁𝗿𝗮𝗶𝗹𝗯𝗹𝗮𝘇𝗶𝗻𝗴 𝗼𝗽𝗵𝘁𝗵𝗮𝗹𝗺𝗼𝗹𝗼𝗴𝗶𝘀𝘁 𝗳𝗿𝗼𝗺 𝗠𝗮𝗹𝗮𝘆𝘀𝗶𝗮! Ainal was awarded a Fellowship Grant through Sydney Eye Hospital Foundation and has joined the hospital for 12-months. “𝘞𝘩𝘦𝘯 𝘐 𝘤𝘰𝘮𝘱𝘭𝘦𝘵𝘦 𝘵𝘩𝘪𝘴 𝘍𝘦𝘭𝘭𝘰𝘸𝘴𝘩𝘪𝘱, 𝘐 𝘱𝘭𝘢𝘯 𝘵𝘰 𝘳𝘦𝘵𝘶𝘳𝘯 𝘵𝘰 𝘔𝘢𝘭𝘢𝘺𝘴𝘪𝘢 𝘸𝘪𝘵𝘩 𝘢 𝘮𝘪𝘴𝘴𝘪𝘰𝘯: 𝘵𝘰 𝘦𝘭𝘦𝘷𝘢𝘵𝘦 𝘷𝘪𝘵𝘳𝘦𝘰𝘳𝘦𝘵𝘪𝘯𝘢𝘭 𝘴𝘦𝘳𝘷𝘪𝘤𝘦𝘴 𝘢𝘯𝘥 𝘱𝘳𝘰𝘷𝘪𝘥𝘦 𝘤𝘶𝘵𝘵𝘪𝘯𝘨-𝘦𝘥𝘨𝘦 𝘤𝘢𝘳𝘦 𝘵𝘰 𝘵𝘩𝘦 𝘱𝘶𝘣𝘭𝘪𝘤. 𝘐 𝘣𝘦𝘭𝘪𝘦𝘷𝘦 𝘮𝘺 𝘴𝘵𝘰𝘳𝘺 𝘪𝘴 𝘢 𝘵𝘦𝘴𝘵𝘢𝘮𝘦𝘯𝘵 𝘵𝘰 𝘵𝘩𝘦 𝘱𝘰𝘸𝘦𝘳 𝘰𝘧 𝘳𝘦𝘭𝘦𝘯𝘵𝘭𝘦𝘴𝘴 𝘱𝘶𝘳𝘴𝘶𝘪𝘵 𝘰𝘧 𝘬𝘯𝘰𝘸𝘭𝘦𝘥𝘨𝘦 𝘢𝘯𝘥 𝘵𝘩𝘦 𝘪𝘮𝘱𝘢𝘤𝘵 𝘰𝘧 𝘮𝘦𝘥𝘪𝘤𝘢𝘭 𝘱𝘳𝘰𝘧𝘦𝘴𝘴𝘪𝘰𝘯𝘢𝘭𝘴 𝘤𝘰𝘮𝘮𝘪𝘵𝘵𝘦𝘥 𝘵𝘰 𝘣𝘦𝘵𝘵𝘦𝘳𝘪𝘯𝘨 𝘩𝘦𝘢𝘭𝘵𝘩𝘤𝘢𝘳𝘦.” You can read more about Ainal and all our 2024 mid-year Fellows on our website. Visit sehf.au/fellows2024 #Vitreoretinal #SEHFFellows

🌟 𝗪𝗶𝗻 𝗮 𝗙𝗲𝗲𝗹-𝗚𝗼𝗼𝗱 $𝟮𝟱𝟬𝗞 𝗙𝗶𝗿𝘀𝘁 𝗣𝗿𝗶𝘇𝗲 𝗣𝗮𝗰𝗸! 🌟 Have you heard? The new Play For Purpose Raffle is now open! 🚗✨ Cruise the open road in style with a luxurious BMW X4 or zip around town in an all-electric Mini Cooper SE—it's your choice! Plus, this first amazing prize pack includes over $60K in cashable gold bullion for you to spend, save, or invest as you wish! 💰 Your $10 ticket supports the Sydney Eye Hospital Foundation, funding vital research, equipment and staff programs. Don’t miss your chance to win big—get your ticket today! 🎟️💖 https://sehf.au/raffle #PlayForPurpose #Raffle #WinBig #SupportSydneyEyeHospital #SEHF

𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝘁𝗵𝗲 𝟮𝟬𝟮𝟰 𝗠𝗲𝗱𝗶𝗰𝗮𝗹 𝗥𝗲𝘁𝗶𝗻𝗮𝗹 𝗙𝗲𝗹𝗹𝗼𝘄, 𝗗𝗿 𝗬𝗮𝘀𝗲𝗺𝗶𝗻 𝗞𝗮𝗽𝘂𝗰𝘂, 𝗮𝗻 𝗮𝗰𝗰𝗼𝗺𝗽𝗹𝗶𝘀𝗵𝗲𝗱 𝗼𝗽𝗵𝘁𝗵𝗮𝗹𝗺𝗼𝗹𝗼𝗴𝗶𝘀𝘁 𝗳𝗿𝗼𝗺 𝗔𝗻𝗸𝗮𝗿𝗮, 𝗧𝘂𝗿𝗸𝗲𝘆! Yasemin was awarded a Fellowship Grant through Sydney Eye Hospital Foundation and has joined the hospital for 12-months. “𝘐’𝘮 𝘦𝘹𝘤𝘪𝘵𝘦𝘥 𝘵𝘰 𝘫𝘰𝘪𝘯 𝘚𝘺𝘥𝘯𝘦𝘺 𝘌𝘺𝘦 𝘏𝘰𝘴𝘱𝘪𝘵𝘢𝘭! 𝘔𝘺 𝘢𝘪𝘮 𝘪𝘴 𝘵𝘰 𝘢𝘥𝘷𝘢𝘯𝘤𝘦 𝘮𝘺 𝘦𝘹𝘱𝘦𝘳𝘵𝘪𝘴𝘦 𝘪𝘯 𝘵𝘩𝘦 𝘮𝘢𝘯𝘢𝘨𝘦𝘮𝘦𝘯𝘵 𝘰𝘧 𝘳𝘦𝘵𝘪𝘯𝘢𝘭 𝘥𝘪𝘴𝘦𝘢𝘴𝘦𝘴. 𝘐’𝘮 𝘢𝘭𝘴𝘰 𝘭𝘰𝘰𝘬𝘪𝘯𝘨 𝘧𝘰𝘳𝘸𝘢𝘳𝘥 𝘵𝘰 𝘤𝘰𝘯𝘵𝘳𝘪𝘣𝘶𝘵𝘪𝘯𝘨 𝘵𝘰 𝘵𝘩𝘦 𝘧𝘪𝘦𝘭𝘥 𝘵𝘩𝘳𝘰𝘶𝘨𝘩 𝘳𝘦𝘴𝘦𝘢𝘳𝘤𝘩 𝘢𝘯𝘥 𝘤𝘰𝘭𝘭𝘢𝘣𝘰𝘳𝘢𝘵𝘪𝘰𝘯 𝘸𝘪𝘵𝘩 𝘵𝘩𝘦 𝘥𝘪𝘴𝘵𝘪𝘯𝘨𝘶𝘪𝘴𝘩𝘦𝘥 𝘵𝘦𝘢𝘮 𝘩𝘦𝘳𝘦. 𝘞𝘩𝘦𝘯 𝘵𝘩𝘦 𝘺𝘦𝘢𝘳 𝘦𝘯𝘥𝘴, 𝘐 𝘱𝘭𝘢𝘯 𝘵𝘰 𝘢𝘱𝘱𝘭𝘺 𝘮𝘺 𝘯𝘦𝘸 𝘴𝘬𝘪𝘭𝘭𝘴 𝘢𝘯𝘥 𝘬𝘯𝘰𝘸𝘭𝘦𝘥𝘨𝘦 𝘵𝘰 𝘦𝘯𝘩𝘢𝘯𝘤𝘦 𝘰𝘱𝘩𝘵𝘩𝘢𝘭𝘮𝘪𝘤 𝘤𝘢𝘳𝘦 𝘪𝘯 𝘣𝘰𝘵𝘩 𝘢𝘤𝘢𝘥𝘦𝘮𝘪𝘤 𝘢𝘯𝘥 𝘤𝘭𝘪𝘯𝘪𝘤𝘢𝘭 𝘴𝘦𝘵𝘵𝘪𝘯𝘨𝘴.” You can read more about Yasemin and all our 2024 mid-year Fellows on our website. Visit https://lnkd.in/gbzJxrCe #medicalretinal #SEHFFellows

𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝘁𝗵𝗲 𝟮𝟬𝟮𝟰 𝗢𝗰𝘂𝗹𝗼𝗽𝗹𝗮𝘀𝘁𝗶𝗰 𝗙𝗲𝗹𝗹𝗼𝘄, 𝗗𝗿 𝗗𝗮𝗿𝗲𝗲𝗻 𝗞𝗵𝗮𝘄𝗷𝗮𝗵, 𝘄𝗵𝗼 𝘄𝗮𝘀 𝗯𝗼𝗿𝗻 𝗮𝗻𝗱 𝗿𝗮𝗶𝘀𝗲𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗰𝗼𝗮𝘀𝘁𝗮𝗹 𝗰𝗶𝘁𝘆 𝗼𝗳 𝗝𝗲𝗱𝗱𝗮𝗵! Dareen was awarded a Fellowship Grant through Sydney Eye Hospital Foundation and has joined the hospital for 12-months. “𝐼’𝑚 𝑡ℎ𝑟𝑖𝑙𝑙𝑒𝑑 𝑎𝑏𝑜𝑢𝑡 𝑚𝑦 𝑗𝑜𝑢𝑟𝑛𝑒𝑦 𝑎𝑡 𝑆𝑦𝑑𝑛𝑒𝑦 𝐸𝑦𝑒 𝐻𝑜𝑠𝑝𝑖𝑡𝑎𝑙. 𝑀𝑦 𝑔𝑜𝑎𝑙𝑠 𝑖𝑛𝑐𝑙𝑢𝑑𝑒 𝑔𝑎𝑖𝑛𝑖𝑛𝑔 𝑒𝑥𝑝𝑜𝑠𝑢𝑟𝑒 𝑡𝑜 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑡 𝑡𝑒𝑐ℎ𝑛𝑖𝑞𝑢𝑒𝑠 𝑎𝑛𝑑 𝑎𝑝𝑝𝑟𝑜𝑎𝑐ℎ𝑒𝑠 𝑖𝑛 𝑜𝑐𝑢𝑙𝑜𝑝𝑙𝑎𝑠𝑡𝑦, 𝑤𝑜𝑟𝑘𝑖𝑛𝑔 𝑤𝑖𝑡ℎ 𝑒𝑥𝑝𝑒𝑟𝑡𝑠 𝑖𝑛 𝑡ℎ𝑒 𝑓𝑖𝑒𝑙𝑑 𝑎𝑛𝑑 𝑔𝑒𝑡𝑡𝑖𝑛𝑔 𝑖𝑛𝑣𝑜𝑙𝑣𝑒𝑑 𝑖𝑛 𝑟𝑒𝑠𝑒𝑎𝑟𝑐ℎ 𝑝𝑟𝑜𝑗𝑒𝑐𝑡𝑠. 𝐼’𝑚 𝑝𝑎𝑠𝑠𝑖𝑜𝑛𝑎𝑡𝑒 𝑎𝑏𝑜𝑢𝑡 𝑜𝑐𝑢𝑙𝑜𝑝𝑙𝑎𝑠𝑡𝑖𝑐𝑠, 𝐼 𝑓𝑖𝑛𝑑 𝑗𝑜𝑦 𝑖𝑛 𝑚𝑎𝑘𝑖𝑛𝑔 𝑎 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒 𝑖𝑛 𝑝𝑒𝑜𝑝𝑙𝑒'𝑠 𝑙𝑖𝑣𝑒𝑠 ℎ𝑒𝑙𝑝𝑖𝑛𝑔 𝑡ℎ𝑒𝑚 𝑓𝑒𝑒𝑙 𝑎𝑛𝑑 𝑙𝑜𝑜𝑘 𝑡ℎ𝑒𝑖𝑟 𝑏𝑒𝑠𝑡.” You can read more about Dareen and all our 2024 mid-year Fellows on our website. Visit https://lnkd.in/gbzJxrCe #oculoplasty #SEHFFellows

A champion of sight: Meet Dr Tanya Trinh 👩⚕️🌟 Tanya’s dedication at the Sydney Eye Hospital has been pivotal in changing lives. Her compassion and expertise play a crucial role in every success story, and John's journey is a perfect example. Read how Tanya and a whole team of experts are making a difference: Discover John's Story https://sehf.au/johnstory #ChampionOfSight #TanyasImpact #SydneyEyeHospital #VisionCare

AU:ORG:SYDNEYEYEHOSPITALFOUNDATION

Sydney Eye Hospital Foundation