{"id":405336,"date":"2023-10-27T15:00:00","date_gmt":"2023-10-27T15:00:00","guid":{"rendered":"https:\/\/www.goodrxmedicine.com\/blog\/?p=405336"},"modified":"2025-10-10T04:48:39","modified_gmt":"2025-10-10T04:48:39","slug":"eye-pressure-test","status":"publish","type":"post","link":"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/eye-pressure-test\/","title":{"rendered":"Understanding Tonometry: The Eye Pressure Test"},"content":{"rendered":"\n<p>Regular eye exams are very important when it comes to our vision and eye health.&nbsp;<br><br>However, an eye pressure test is one of the major parts of these exams.<br><br>Eye pressure tests may help detect serious eye conditions like Glaucoma early and prevent vision loss.&nbsp;<br><br>But what exactly is an eye pressure test, why is it important, and how is it performed?&nbsp;<br><br>Let us explore the answers to the above questions and what to expect during the eye examination.<\/p>\n\n\n\n<h2 id=\"what-is-eye-pressure-test\" class=\"wp-block-heading\">What is eye pressure test<\/h2>\n\n\n\n<p>An eye pressure test, also known as Tonometry, is used to measure the Intraocular Pressure (IOP) in one&#8217;s eyes.&nbsp;<br><br>Intraocular Pressure refers to the fluid pressure inside the eye and is important for maintaining eye health.<br><br>However, an increase in IOP can increase one&#8217;s risk of <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/glaucoma\/\" target=\"_blank\">Glaucoma<\/a>.<br><br>Glaucoma is a serious eye condition that can harm the optic nerve and cause vision problems.&nbsp;<br><br><a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/open-angle-glaucoma\/\" target=\"_blank\">Open Angle Glaucoma<\/a> is the most common <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/types-of-glaucoma\/\" target=\"_blank\" rel=\"noreferrer noopener\">type of Glaucoma<\/a> and develops without noticeable symptoms.&nbsp;<br><br>Therefore, regular Glaucoma tests like Tonometry are important to detect one&#8217;s risk of developing Glaucoma.<br><br>Consult an eye doctor, as early diagnosis and treatment can help avoid <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/does-glaucoma-cause-blindness\/\" target=\"_blank\" rel=\"noreferrer noopener\">Glaucoma vision loss<\/a>.<\/p>\n\n\n\n<p>Want to know more about pressure behind the eyes? <strong>Read<\/strong> our article: <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/pressure-behind-the-eye\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pressure Behind the Eye and its Potential Risk Factors<\/a><\/p>\n\n\n<div class=\"su-box su-box-style-soft\" id=\"\" style=\"border-color:#075380;border-radius:7px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#3A86B3;color:#FFFFFF;border-top-left-radius:5px;border-top-right-radius:5px\">Order Now<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:5px;border-bottom-right-radius:5px\">Don&#8217;t let Glaucoma steal your vision. Buy  <a class=\"wpil_keyword_link\" href=\"https:\/\/www.goodrxmedicine.com\/careprost-3-ml-of-0-03.html\" target=\"_blank\" rel=\"noopener\" title=\"Careprost 3 ml of 0.03%\" data-wpil-keyword-link=\"linked\">Careprost 3 ml of 0.03%<\/a> and  <a class=\"wpil_keyword_link\" href=\"https:\/\/www.goodrxmedicine.com\/bimat-0-03-w-v-bimatoprost-ophthalmic-solution.html\" target=\"_blank\" rel=\"noopener\" title=\"Bimat 0.03%\" data-wpil-keyword-link=\"linked\">Bimat 0.03%<\/a> from GoodRXMedicine now. <\/div><\/div>\n\n\n<div id=\"goodr-2421525820\"><!-- ===== GRX 4-Product Strip Dynamic API \u2014 GoodRxMedicine ===== -->\r\n<div class=\"grx-ss\" aria-label=\"Related products\">\r\n  <style>\r\n    .grx-ss{\r\n      --gap:12px;\r\n      --radius:12px;\r\n      --border:#d5d7da;\r\n      --muted:#717680;\r\n      --title:#181d27;\r\n      --price:#32c900;\r\n      --btn:#4107a1;\r\n      --btn-h:#32067c;\r\n      --btn-txt:#fff;\r\n      --shadow:0 4px 14px rgba(9,30,66,.06);\r\n      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test.&nbsp;<br><br>The common types of Tonometry methods are Applanation Tonometry, Non-Contact Tonometer, and Electronic Indentation Tonometry.<br><br>Let us discuss the methods in detail:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Goldmann Applanation Tonometry:<\/strong> The doctor will start the test by using eye-numbing drops. After that, the doctor will use a Tonometer (a medical device) to apply pressure and flatten the cornea gently. The amount of pressure applied is directly related to one&#8217;s IOP and will measure the <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/eye-pressure\/\" target=\"_blank\" rel=\"noreferrer noopener\">eye pressure<\/a>. Applanation <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK582132\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Tonometry<\/a> is the most used method, as it provides highly accurate results.<\/li>\n\n\n\n<li><strong>Non-Contact Tonometry (Air-Puff Tonometer):<\/strong> The method is suitable for people who are uncomfortable with the Applanation Tonometry method. The doctor will use a machine to blow a small burst of air onto one&#8217;s eye surface. The machine measures the eye&#8217;s resistance to the air puff and estimates IOP.<\/li>\n\n\n\n<li><strong>Electronic Indentation Tonometry:<\/strong> The method uses a device called the Tono-Pen. It is a handheld device that provides a digital reading of IOP by touching the eye&#8217;s surface.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Depending on the equipment available at the eye clinic and patient preference, the doctor may use any method to measure the IOP.<br><br>However, a person&#8217;s eye pressure may depend on various <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5957383\/#:~:text=The%20study%20included,of%20the%20IOP.\" target=\"_blank\" rel=\"nofollow noopener\">factors<\/a> like age, blood pressure, cornea thickness, and more.&nbsp;<br><br>The doctor will recommend your eye test schedule based on the above factors and overall eye health.<\/p>\n\n\n\n<p>Understand the normal range of eye pressure with our <strong>article: <\/strong><a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/eye-pressure-range\/\" target=\"_blank\" rel=\"noreferrer noopener\">Understanding Eye Pressure Range: Normal, High, and Low<\/a><\/p>\n\n\n<div class=\"su-box su-box-style-soft cms-warning-box\" id=\"\" style=\"border-color:#7a1312;border-radius:10px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#AD4645;color:#FFFFFF;border-top-left-radius:8px;border-top-right-radius:8px\">Warning:<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:8px;border-bottom-right-radius:8px\">Do not try to measure eye pressure at home, as it is dangerous and ineffective.<\/div><\/div>\n\n\n\n<h2 id=\"what-does-eye-pressure-test-show\" class=\"wp-block-heading\">What does eye pressure test show<\/h2>\n\n\n\n<p>Tonometry (eye pressure test) shows a person&#8217;s Intraocular Pressure level.<br><br>A <a href=\"https:\/\/www.aao.org\/eye-health\/anatomy\/eye-pressure#:~:text=Normal%20eye%20pressure%20is%20usually%20considered%20to%20be%20between%2010%20and%2020%20millimeters%20of%20mercury%20(mmHg).\" target=\"_blank\" rel=\"nofollow noopener\">study<\/a> states that normal IOP falls between 10-20 millimeters of mercury (mm Hg).&nbsp;<br><br>A normal range Tonometry result suggests that the eye&#8217;s fluid pressure is in a healthy state.<br><br>However, an increase or decrease in the IOP levels may cause some eye problems like Glaucoma, <a href=\"https:\/\/www.aoa.org\/healthy-eyes\/eye-and-vision-conditions\/ocular-hypertension?sso=y\" target=\"_blank\" rel=\"nofollow noopener\">Ocular Hypertension<\/a>, and more.<br><br><a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/high-eye-pressure\/\" target=\"_blank\">High eye pressure<\/a> is one of the major <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/glaucoma-causes\/\" target=\"_blank\">Glaucoma causes<\/a> and damages the optic nerve.&nbsp;<\/p>\n\n\n<div class=\"su-box su-box-style-soft\" id=\"\" style=\"border-color:#073d11;border-radius:10px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#3A7044;color:#FFFFFF;border-top-left-radius:8px;border-top-right-radius:8px\">Fact:<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:8px;border-bottom-right-radius:8px\">A person may have Ocular Hypertension if their eye pressure is high, but the optic nerve is normal. <\/div><\/div>\n\n\n\n<p>On the other hand, <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/low-eye-pressure\/\" target=\"_blank\">low eye pressure<\/a> can cause eye trauma or inflammation and lead to <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK582144\/\" target=\"_blank\" rel=\"nofollow noopener\">Ocular Hypotony<\/a>.<br><br>Tonometry results help doctors examine one&#8217;s eye health and decide on proper treatment.&nbsp;<br><br>The doctors may recommend regular eye tests if they notice high or low eye pressure in one&#8217;s Tonometry results.<\/p>\n\n\n\n<p>Explore the various eye pressure eye drops with our <strong>article: <\/strong><a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/eye-drops-for-eye-pressure\/\" target=\"_blank\" rel=\"noreferrer noopener\">Eye Drops for Eye Pressure: An Effective Way to Improve Your Vision<\/a><\/p>\n\n\n<div class=\"su-box su-box-style-soft\" id=\"\" style=\"border-color:#075380;border-radius:7px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#3A86B3;color:#FFFFFF;border-top-left-radius:5px;border-top-right-radius:5px\">Order Now<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:5px;border-bottom-right-radius:5px\">Buy  <a class=\"wpil_keyword_link\" href=\"https:\/\/www.goodrxmedicine.com\/lashgrow-3-ml-bimatoprost-ophthalmic-solution.html\" target=\"_blank\" rel=\"noopener\" title=\"Lashgrow 3 ml\" data-wpil-keyword-link=\"linked\">Lashgrow 3 ml<\/a> from GoodRXMedicine to help treat Glaucoma and maintain your eye health. <\/div><\/div>\n\n\n\n<h2 id=\"key-takeawaysnbsp\" class=\"wp-block-heading\">Key takeaways <\/h2>\n\n\n\n<p>An eye pressure test, also known as Tonometry, is an important part of a complete eye examination and helps measure Intraocular Pressure.&nbsp;<br><br>The common methods of Tonometry include Applanation Tonometry, Non-Contact Tonometer, and Electronic Indentation Tonometry.<br><br>The doctor may use any one Tonometry method and suggest proper treatment according to one&#8217;s eye results.<br><br>The normal IOP falls between 10-20 mm Hg and is important for maintaining healthy eyes.&nbsp;<br><br>However, an increase or decrease in the IOP levels may lead to vision problems.<br><br>Get regular eye tests and consult a doctor for early detection and treatment of the eye problems.&nbsp;<\/p>\n\n\n\n<p>Know the various ways to lower your eye pressure with our <strong>article: <\/strong><a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/how-to-lower-eye-pressure-and-improve-your-vision\/\" target=\"_blank\" rel=\"noreferrer noopener\">How to Lower Eye Pressure and Improve Your Vision<\/a><\/p>\n\n\n<div id=\"goodr-1495634673\"><a href=\"https:\/\/www.goodrxmedicine.com\/eye-care.html\" aria-label=\"Your Banner CTA\" class=\"post-inside-cta\">\r\n    <picture>\r\n        <source media=\"(max-width: 768px)\" srcset=\"https:\/\/www.goodrxmedicine.com\/blog\/wp-content\/uploads\/2025\/07\/Eye_Mobile.webp\">\r\n        <img decoding=\"async\" src=\"https:\/\/www.goodrxmedicine.com\/blog\/wp-content\/uploads\/2025\/07\/Eye_Desktop-scaled.webp\" alt=\"Your Banner CTA\" width=\"100%\" height=\"184\">\r\n    <\/picture>\r\n<\/a>\r\n<div style=\"height: 30px;\"><\/div><\/div>\n\n\n\n<h2 id=\"frequently-asked-question\" class=\"wp-block-heading\">Frequently Asked Question<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1698393007753\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Can I do an eye pressure test at home?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>No, a person cannot perform an accurate eye pressure test at home. Tonometry requires special medical equipment and an experienced eye doctor to measure one&#8217;s Intraocular Pressure. A proper eye pressure test may help measure accurate IOP level and eye health.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1698393016832\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Why do I need an eye pressure test?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>An eye pressure test is important to check one&#8217;s eye health and detect vision problems early. An increase or decrease in one&#8217;s IOP levels may lead to eye problems like Glaucoma, Ocular Hypotony, and more. Detecting these eye problems may help prevent eye problems with proper and timely treatment.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1698393022516\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Can I drive after my eye pressure test?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>No, one should not drive after an eye pressure test. Normally, the test does not dilate pupils or damage vision. However, one may experience discomfort or blurred vision due to eye-numbing drops. It is best to wait till one&#8217;s vision returns to normal.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1698393045608\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Are there any side effects of the eye pressure test?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>No, there are no side effects of an eye pressure test. Tonometry is a safe, quick, and painless eye test.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1698393051094\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Can a doctor diagnose a patient with Glaucoma with just Tonometry?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>No, a doctor cannot diagnose Glaucoma with just Tonometry. Tonometry measures Intraocular Pressure, and high IOP may increase one&#8217;s risk of Glaucoma. However, high IOP may not always lead to Glaucoma. The doctor may suggest other <a href=\"https:\/\/www.goodrxmedicine.com\/blog\/eyecare\/glaucoma-test\/\" target=\"_blank\" rel=\"noreferrer noopener\">Glaucoma tests<\/a> like Pachymetry, Perimetry, and more to diagnose the condition properly.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"su-note\"  style=\"border-color:#cbcac8;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#E5E4E2;border-color:#ffffff;color:#36454F;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px;\"><strong>Citations:<\/strong><br \/>\nWhen referencing outside resources, <a href=\"https:\/\/www.goodrxmedicine.com\" target=\"_blank\" rel=\"noopener\">GoodrxMedicine<\/a> always provides full citations. To learn more about the measures we use to maintain the quality of our content, please review our <a href=\"https:\/\/www.goodrxmedicine.com\/content-information-policy\" target=\"_blank\" rel=\"noopener\">Content Information Policy<\/a>.<\/div><\/div>\n<ul>\n<li><a href=\"https:\/\/www.webmd.com\/eye-health\/what-is-tonometry\" target=\"_blank\" rel=\"noopener nofollow\">webmd.com<\/a><\/li>\n<li><a href=\"https:\/\/my.clevelandclinic.org\/health\/diagnostics\/22859-tonometry\" target=\"_blank\" rel=\"noopener nofollow\">clevelandclinic.org<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"Regular eye exams are very important when it comes to our vision and eye health.&nbsp; However, an eye pressure test is one of the major parts of these exams. Eye pressure tests may help detect serious eye conditions like Glaucoma early and prevent vision loss.&nbsp; But what exactly is an eye pressure test, why is &#8230; Read more","protected":false},"author":21,"featured_media":417405,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"schema_drug_name":"","schema_drug_sameas":"","schema_strip_mentions_drug":"","custom_head_after_canonical":"","geo_latitude":"","geo_longitude":"","rmp_avg_rating":"4.7","rmp_vote_count":"199","csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_reading_time":"","csco_page_toc_navigation":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"csco_post_video_bg_volume":false,"footnotes":""},"categories":[145],"tags":[285,283,286],"class_list":{"0":"post-405336","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-eyecare","8":"tag-eye-treatment","9":"tag-eyecare","10":"tag-eyecare-medicine","11":"cs-entry","12":"cs-video-wrap"},"_links":{"self":[{"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/posts\/405336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/comments?post=405336"}],"version-history":[{"count":5,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/posts\/405336\/revisions"}],"predecessor-version":[{"id":440230,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/posts\/405336\/revisions\/440230"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/media\/417405"}],"wp:attachment":[{"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/media?parent=405336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/categories?post=405336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.goodrxmedicine.com\/blog\/wp-json\/wp\/v2\/tags?post=405336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}