https://www.cogansociety.org/past-meetings daily 0.75 2019-03-25 https://www.cogansociety.org/past-meetings/2019/3/25/32nd-annual-meeting monthly 0.5 2025-07-25 https://www.cogansociety.org/past-meetings/2018/6/1/33rd-annual-meeting monthly 0.5 2019-02-01 https://www.cogansociety.org/past-meetings/2018/6/1/32nd-annual-meeting monthly 0.5 2019-02-01 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1527908359831-WQLWI1BKQ7SE08JNW3CC/2017+COHS+group+photo.JPG Past Meetings - 30th Annual Meeting 2017 Annual Meeting Attendees https://www.cogansociety.org/past-meetings/2018/6/1/31st-annual-meeting-april-15-17-2016 monthly 0.5 2019-02-01 https://www.cogansociety.org/past-meetings/2016/4/11/28th-annual-meeting-2015 monthly 0.5 2017-11-22 https://www.cogansociety.org/past-meetings/2014/8/23/27th-annual-meeting-2014 monthly 0.5 2017-11-22 https://www.cogansociety.org/past-meetings/2013/11/9/annual-meeting-2012 monthly 0.5 2018-06-02 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024757521-IDKPGT7SF8CO1CLLAAAD/IMG_4188.JPG Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024758639-YPANTRXK551VF8SK4E3U/IMG_4189.JPG Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024759191-YZ7OJX3ZLKY08LVP1E45/IMG_4190.JPG Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024760010-EHPOO4NLHO7DSQM1PLWZ/IMG_4191.JPG Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024760678-26SN0JZEBU6GBKMJWCY9/IMG_4192.JPG Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024761364-8J8CJG9VH9WSBK5AP127/IMG_4193.JPG Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024761579-2YOGV1CFRANG1HIIMEOF/IMG_4194.JPG Past Meetings - 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25th Annual Meeting 2012 Bethesda, Maryland https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384024769790-O451M7RXBWSWYA5ASUMM/Picture1.png Past Meetings - 25th Annual Meeting 2012 Bethesda, Maryland https://www.cogansociety.org/past-meetings/2013/11/9/2011-annual-meeting monthly 0.5 2025-07-25 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025266789-OFY1ND8XBEK97D2NFA2R/gal1.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025266831-1PLMOMKZFCMHXF2WVWDY/gal10.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025267018-50HPYZMZIJL98X4AABJB/gal11.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025267118-DRKG4ZNUNOATSCVQC2C1/gal12.jpg Past Meetings - 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24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025270745-6336FGR7BB5UHZYG034U/gal40.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025270766-VMOVWAHW0KBL3Z1WZV8A/gal41.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025271139-PLJC6Q02MLLR6WXUMUDS/gal42.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025271228-06051R9R8R5N3SDZ2VR6/gal43.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025271292-MGR345W5LG8S3HARDHYS/gal44.jpg Past Meetings - 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24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025272763-WHVA5WAO0W2SFWWZJEQG/gal49.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025273180-NX6MLIHZ51FO0DR1HS6H/gal50.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025273250-PN0FEUO3M7XBECKRTYCY/gal51.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025273403-L9QSXJE1YEAY83RGFZVZ/gal52.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025273446-TD8XS84A116ETZAITNAN/gal6.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025273795-OXGOS755AG33EHNIWN5B/gal7.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025273905-HALN4IOKYQLE3JIWSX4Y/gal8.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025274254-IYEFSIUCGYNU7Z7TW9A7/gal9.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025274357-A15DC21SG4DTANHD2QDS/gal53.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384025274466-3LEL5VEL2SBNUXVS6NLC/gal54.jpg Past Meetings - 24th Annual Meeting , April 15-17, 2011 Union League, Philadelphia, Pennsylvania https://www.cogansociety.org/past-meetings/2014/2/4/meetings-before-2011 monthly 0.5 2025-07-25 https://www.cogansociety.org/new-galleryusersdonelsonmanleydesktoptorsten-wieseljpg daily 0.75 2014-11-04 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1415105508682-JZQ4Y69RVYCQLYC9VC89/torsten-wiesel.jpg New Gallery/Users/donelsonmanley/Desktop/torsten-wiesel.jpg https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1415105508682-JZQ4Y69RVYCQLYC9VC89/torsten-wiesel.jpg New Gallery/Users/donelsonmanley/Desktop/torsten-wiesel.jpg https://www.cogansociety.org/new-galleusersdonelsonmanleydesktoptorsten-wieseljpgry daily 0.75 2014-11-04 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1415105413265-FN9T6NGLC1WRJ0N9V9E6/torsten-wiesel.jpg New Galle/Users/donelsonmanley/Desktop/torsten-wiesel.jpgry https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1415105413265-FN9T6NGLC1WRJ0N9V9E6/torsten-wiesel.jpg New Galle/Users/donelsonmanley/Desktop/torsten-wiesel.jpgry https://www.cogansociety.org/about-the-cogan-society daily 0.75 2023-08-18 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1384023244233-FQH3VX2P2TI7LFVKLXXC/image-asset.jpeg History David Glendenning Cogan https://www.cogansociety.org/home daily 1.0 2026-03-17 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1747530425341-3CD5R2B5OA5JCW4TV1LF/upscaled_magic.jpg Home https://www.cogansociety.org/bylaws daily 0.75 2024-03-29 https://www.cogansociety.org/past-presentations daily 0.75 2026-03-02 https://www.cogansociety.org/snyder-lectures daily 0.75 2026-02-05 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1478633949848-5Z0ECIJ2B1ABTKGZHG1E/Snyder_Charles.jpg Snyder Lectures Charles Snyder, the long time librarian at the Massachusetts Eye and Ear Infirmary, for whom the Snyder Lecture Series is named. (Photo courtesy of the Massachusetts Eye & Ear Infirmary.) https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/cc5a9ce2-922f-49cb-b248-4c40c85191a5/Snyder+medal+copy.jpg Snyder Lectures - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/fcc666e4-af63-44c5-b91c-dcc93a7ab540/John+D+Bullock.png Snyder Lectures - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/a860ea38-87a5-4198-8ef0-d02f6ecdecf5/Wendy+Gasch+11-24.jpg Snyder Lectures - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/37fcd93f-a9d6-4eac-b425-9d621fd129ec/C_Margo+Syder+Lecture.jpg Snyder Lectures - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1b7da4e8-5033-4b9a-9948-25396225d891/Blodi+portrait+copy+2.jpg Snyder Lectures https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1ffc52b8-e50c-4139-9088-f6a16668d921/Pam+head.jpeg Snyder Lectures - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1b58c015-06df-4ea2-87f4-c075089565e0/Bartley+for+snyder+page.png Snyder Lectures - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1549898517231-XRCOVZA0BC2LDPX1R5VI/Harper+photo+to+use.jpg Snyder Lectures https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/1534512146985-HM1OW5NWBE072R8DGAFS/Robert+Feibel.jpg Snyder Lectures 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Benjamin, MA https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/5a0f429d-c3d8-4da0-9cd5-a51c132cfb84/Ravin+MD.png Officers - Make it stand out Executive Committee Tracy Ravin, MD Term expires in 2029 https://www.cogansociety.org/meeting-registration-1 daily 0.75 2022-04-15 https://www.cogansociety.org/2022-abstracts daily 0.75 2024-05-14 https://www.cogansociety.org/member-news-1 daily 0.75 2023-02-20 https://www.cogansociety.org/2023-abstracts daily 0.75 2024-05-14 https://www.cogansociety.org/2024-abstracts daily 0.75 2024-05-10 https://www.cogansociety.org/preliminary-meeting-schedule daily 0.75 2026-02-23 https://www.cogansociety.org/new-page-94 daily 0.75 2025-07-25 https://www.cogansociety.org/invitation-and-call-for-papers-2026 daily 0.75 2026-02-23 https://www.cogansociety.org/new-page-73 daily 0.75 2026-01-23 https://images.squarespace-cdn.com/content/v1/5272dffbe4b0793e8f87f99f/fcc666e4-af63-44c5-b91c-dcc93a7ab540/John+D+Bullock.png 2026 Snyder Lecture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.cogansociety.org/new-page-48 daily 0.75 2026-04-03 https://www.cogansociety.org/2026-meeting-registration daily 0.75 2026-03-04 https://www.cogansociety.org/new-page-28 daily 0.75 2026-03-17 https://www.cogansociety.org/abstracts-2020 daily 0.75 2026-03-27 https://www.cogansociety.org/abstracts-2010-2019 daily 0.75 2026-03-27 https://www.cogansociety.org/abstracts-2001-2009 daily 0.75 2026-03-28 https://www.cogansociety.org/dues-and-membership daily 0.75 2018-04-16 https://www.cogansociety.org/dues-and-membership/annual-dues-cogan-ophthalmic-history-society monthly 0.5 2025-12-02 https://www.cogansociety.org/dues-and-membership/donate monthly 0.5 2019-11-28 https://www.cogansociety.org/snyder-product-page daily 0.75 2018-04-16 https://www.cogansociety.org/snyder-product-page/fund-for-trainee-support monthly 0.5 2019-11-28 https://www.cogansociety.org/snyder-product-page/snyder-lecture-award-medal monthly 0.5 2018-04-16 https://www.cogansociety.org/donations-product-page daily 0.75 2018-04-16 https://www.cogansociety.org/donations-product-page/donate-wf2cc monthly 0.5 2021-12-27 https://www.cogansociety.org/2020-meeting-registration-products daily 0.75 2019-11-26 https://www.cogansociety.org/2020-meeting-registration-products/both-meeting-presentations-amp-banquet-receptions monthly 0.5 2019-12-04 https://www.cogansociety.org/2020-meeting-registration-products/only-saturday-6th-reception-banquet-at-apothecaries-hall-amp-thursday-4th-reception monthly 0.5 2019-11-28 https://www.cogansociety.org/2020-meeting-registration-products/all-meeting-presentations-includes-reception-thursday-4th-lunches-on-5th-6th-and-refreshments-each-day monthly 0.5 2019-11-28 https://www.cogansociety.org/2022-meeting-registration-products daily 0.75 2022-04-15 https://www.cogansociety.org/2022-meeting-registration-products/2024-meeting-registration monthly 0.5 2024-03-26 https://www.cogansociety.org/2022-meeting-registration-products/2022-meeting-registration-c7mek-46j7g monthly 0.5 2023-05-07 https://www.cogansociety.org/2022-meeting-registration-products/2022-meeting-registration-c7mek-46j7g-hwc94 monthly 0.5 2023-04-28 https://www.cogansociety.org/2022-meeting-registration-products/2024-meeting-registration-6gaj3 monthly 0.5 2025-05-02 https://www.cogansociety.org/2022-meeting-registration-products/2026-meeting-registration monthly 0.5 2026-03-28