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Sites similar to 4vision.cn

4Vision alternatives & similar sites

Ophthalmic Instrument, Ophthalmic Diagnostic Equipment, Operation Microscope, Slit lamp, Ultrasound AB Scan, Biometer, Ultrasound Biomicroscope, UBM, Beam Splitter, DSLR Camera adaptor, HD Video adaptor, HD Camcorder adaptor, Ophthalmic Unit, Ophthalmic Stand and Chair, Refraction Table, Phoropter, — 15 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Eye And Vision Conditions →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
best-ophthalmology.com ↗	61 match 1 shared topics	好視力 best-ophthalmology.com	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
fangjingji.com ↗	60 match 1 shared topics	铂视保视觉训练软件——视觉功能训练软件,专业的弱视恢复系统,小儿弱视训练，视功能异常恢复训练，视认知强化训练	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
ctvihongkong.org ↗	60 match 1 shared topics	香港視障視全人士協會	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
ejoy66.com ↗	60 match 1 shared topics	艺杰视光	zh	eye-and-vision-conditions	robotsllmsaihumans	email phone	none
7invensun.com ↗	60 match 1 shared topics	眼动仪 - 七鑫易维7invensun官网 - 专注于眼球追踪技术研发与创新	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
abjsw.com ↗	60 match 1 shared topics	近视预防_视力恢复_儿童青少年视力矫正_视力健康防控招商加盟-广东艾贝健生物科技有限公司	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
babyeye.com ↗	60 match 1 shared topics	视琦官网_弱视训练_视觉训练	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
carslives.com ↗	60 match 1 shared topics	188图库论坛-资料免费精选	zh	eye-and-vision-conditions	robotsllmsaihumans	email phone	none
hanyuneducation.com ↗	60 match 1 shared topics	博彩论坛-博彩平台论坛推荐	zh	eye-and-vision-conditions WordPress	robotsllmsaihumans	emailphone	none
lsaier.com ↗	60 match 1 shared topics	凉山爱尔眼科医院	zh	eye-and-vision-conditions WordPress	robotsllmsaihumans	emailphone	none
salearningschool.com ↗	60 match 1 shared topics	3044永利集团(中国)有限公司官方网站-欢迎光临	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
samyragent.com ↗	60 match 1 shared topics	Fxccm - mt4	zh	eye-and-vision-conditions	robotsllmsaihumans	emailphone	none
susi-optical.com ↗	60 match 1 shared topics	舒視眼鏡/舒視驗光所潭子配鏡推薦	zh	eye-and-vision-conditions WordPress	robotsllmsaihumans	email phone	none
suyazr.com ↗	30 match 1 shared topics	双眼皮开眼角价格-双眼皮整形医院医生排名-眼部整形网-官网首页	zh	surgery	robotsllmsaihumans	emailphone	none
100wgk.com ↗	20 match 1 shared topics	哈尔滨耳鼻喉医院哪个好_黑龙江长庚眼耳鼻喉医院_哈尔滨耳鼻喉专科医院	zh	medical-health	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.