{"id":3273,"date":"2026-02-27T14:43:24","date_gmt":"2026-02-27T14:43:24","guid":{"rendered":"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/"},"modified":"2026-02-27T14:43:24","modified_gmt":"2026-02-27T14:43:24","slug":"dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview","status":"publish","type":"post","link":"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/","title":{"rendered":"dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">dissociated vertical deviation (DVD) Introduction (What it is)<\/h2>\n\n\n\n<p>dissociated vertical deviation (DVD) is an eye alignment condition where one eye drifts upward when the eyes are not working together as a team.<br\/>\nIt is most noticeable when one eye is covered or when a person is tired or not focusing well.<br\/>\nDVD is commonly discussed in pediatric ophthalmology and strabismus (eye misalignment) clinics.<br\/>\nClinicians use the term to describe a specific pattern of vertical drifting that differs from many other causes of hypertropia (an eye that sits higher).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why dissociated vertical deviation (DVD) used (Purpose \/ benefits)<\/h2>\n\n\n\n<p>dissociated vertical deviation (DVD) is a <em>clinical concept and diagnosis<\/em>, not a medication or device. Its \u201cuse\u201d is in <strong>recognizing and describing<\/strong> a characteristic type of eye drift so clinicians can evaluate vision development and plan appropriate management.<\/p>\n\n\n\n<p>Understanding and identifying DVD can help by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Clarifying the type of misalignment:<\/strong> DVD is typically a <em>dissociated<\/em> movement, meaning it appears when binocular cooperation (fusion) is reduced\u2014such as during cover testing\u2014rather than being a constant, fixed vertical deviation.<\/li>\n<li><strong>Improving diagnostic accuracy:<\/strong> Distinguishing DVD from other vertical deviations (for example, a cranial nerve palsy or restrictive strabismus) helps guide the next steps in evaluation.<\/li>\n<li><strong>Guiding treatment planning:<\/strong> If surgery is considered, DVD influences which eye muscle procedures might be discussed and what goals are realistic (often improving alignment appearance and control, not \u201cperfect\u201d alignment in every gaze).<\/li>\n<li><strong>Supporting monitoring over time:<\/strong> DVD can change with age, attention, fatigue, and visual input; documenting it helps track stability.<\/li>\n<li><strong>Contextualizing related conditions:<\/strong> DVD often coexists with other binocular vision disorders (such as infantile strabismus patterns), and recognizing it can help explain a child\u2019s overall alignment picture.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Indications (When ophthalmologists or optometrists use it)<\/h2>\n\n\n\n<p>Clinicians commonly evaluate for and document dissociated vertical deviation (DVD) in scenarios such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A history of <strong>early-onset strabismus<\/strong>, especially patterns consistent with infantile\/early childhood onset<\/li>\n<li>An observed <strong>intermittent upward drift<\/strong> of one eye, especially when daydreaming, tired, or when one eye is covered<\/li>\n<li><strong>Asymmetric \u201chypertropia\u201d<\/strong> that does not fit a single muscle palsy pattern<\/li>\n<li>Strabismus assessments in children with <strong>reduced binocular fusion<\/strong> or poor stereopsis (depth perception)<\/li>\n<li>Pre-operative or post-operative visits for strabismus, to assess whether a vertical dissociated component is present<\/li>\n<li>Patients with <strong>latent nystagmus<\/strong> or other sensory adaptation patterns where dissociation changes alignment<\/li>\n<li>Cases where a caregiver reports one eye \u201cfloats up\u201d in photos or when the child is not paying attention<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Contraindications \/ when it\u2019s NOT ideal<\/h2>\n\n\n\n<p>Because dissociated vertical deviation (DVD) is a <em>diagnosis\/finding<\/em>, \u201ccontraindications\u201d mainly apply to <strong>when the DVD label or DVD-focused management is not the best fit<\/strong>.<\/p>\n\n\n\n<p>Situations where DVD may be <em>less likely<\/em> or where another explanation may be more appropriate include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>True (non-dissociated) hypertropia<\/strong> that is present consistently, including when both eyes are viewing, suggesting a different mechanism<\/li>\n<li>Patterns suggesting <strong>cranial nerve palsy<\/strong> (such as fourth nerve palsy) where vertical deviation follows a more predictable gaze-dependent pattern<\/li>\n<li><strong>Restrictive strabismus<\/strong> (for example, due to scarring, trauma, thyroid eye disease, or orbital disease), where mechanical limitation drives misalignment<\/li>\n<li><strong>Skew deviation<\/strong> (a neurologic vertical misalignment), especially when associated with other neurologic signs<\/li>\n<li><strong>Acute-onset vertical diplopia (double vision)<\/strong> in an older child or adult, where DVD is typically not the primary explanation<\/li>\n<li>When the main issue is <strong>refractive error, amblyopia, or ocular disease<\/strong> driving reduced vision; addressing the sensory cause may be prioritized before attributing findings to DVD<\/li>\n<\/ul>\n\n\n\n<p>If a surgical plan is being considered for DVD-related misalignment, clinicians may also delay or reconsider intervention when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The deviation is <strong>not stable<\/strong> over time (varies by clinician and case)<\/li>\n<li>There are <strong>untreated vision-limiting conditions<\/strong> affecting fixation or binocular input<\/li>\n<li>Overall goals are primarily <strong>functional binocular vision<\/strong> and DVD appears as a secondary, intermittent cosmetic concern (varies by clinician and case)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How it works (Mechanism \/ physiology)<\/h2>\n\n\n\n<p>DVD is best understood as a phenomenon that emerges when <strong>binocular vision (fusion)<\/strong> is disrupted.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mechanism (high level)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In typical binocular viewing, the brain combines both eyes\u2019 images into a single percept and uses <strong>fusion<\/strong> to keep the eyes aligned.<\/li>\n<li>In dissociated vertical deviation (DVD), when one eye is <strong>dissociated<\/strong> (for example, covered or suppressed), that eye may drift <strong>upward<\/strong> (often with a subtle outward and extorsional component).<\/li>\n<li>The drift is often described as <strong>slow and variable<\/strong>, and it tends to reduce when the eye is allowed to fixate again.<\/li>\n<\/ul>\n\n\n\n<p>DVD is not simply \u201ca weak muscle.\u201d It is generally framed as a <strong>central (neural) binocular control imbalance<\/strong> that becomes visible when fusion is removed or reduced.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Relevant anatomy and systems<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Extraocular muscles<\/strong> (especially the vertical rectus and oblique muscles) carry out the movement, but the underlying issue is usually not isolated muscle paralysis.<\/li>\n<li><strong>Binocular sensory processing<\/strong> (how the brain uses both eyes together) influences whether the deviation appears and how strongly.<\/li>\n<li><strong>Fixation preference, suppression, and stereopsis<\/strong> can affect how DVD presents clinically.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Onset\/duration\/reversibility<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DVD is often identified in <strong>childhood<\/strong> and may persist long-term, though its visibility can vary.<\/li>\n<li>It is typically <strong>intermittent<\/strong>, showing more under fatigue, inattention, or monocular viewing.<\/li>\n<li>\u201cOnset and duration\u201d in the medication sense do not apply, because DVD is not a drug effect. The most relevant \u201creversibility\u201d is that the upward drift commonly <strong>reduces when binocular viewing and fixation are restored<\/strong>, though the tendency may remain.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">dissociated vertical deviation (DVD) Procedure overview (How it\u2019s applied)<\/h2>\n\n\n\n<p>DVD is not a single procedure. It is a <strong>clinical finding<\/strong> evaluated during an eye alignment exam and then considered in management planning.<\/p>\n\n\n\n<p>A general workflow often looks like this:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\n<p><strong>Evaluation \/ exam<\/strong>\n   &#8211; History: onset (early vs later), frequency, photos, symptoms (including diplopia), and associated eye conditions.\n   &#8211; Visual assessment: acuity, refractive error, and amblyopia screening.\n   &#8211; Alignment testing: cover\u2013uncover and alternate cover testing in different gazes and at distance\/near.\n   &#8211; Measurement: prism measurements may be used to quantify the vertical drift when it appears (methods vary by clinician and case).\n   &#8211; Binocular function: stereopsis and sensory status tests may be performed.<\/p>\n<\/li>\n<li>\n<p><strong>Preparation<\/strong>\n   &#8211; Corrective lenses may be prescribed if refractive error is present, because clear input can affect control and fusion.\n   &#8211; If amblyopia is present, clinicians may address it as part of the broader plan (approaches vary by clinician and case).<\/p>\n<\/li>\n<li>\n<p><strong>Intervention \/ testing<\/strong>\n   &#8211; Observation and documentation are common when DVD is mild or primarily intermittent.\n   &#8211; If DVD is cosmetically significant or affects function, <strong>surgical planning<\/strong> may be discussed. The exact plan depends on the pattern (unilateral vs bilateral, symmetry, associated oblique overaction, and coexisting horizontal strabismus).<\/p>\n<\/li>\n<li>\n<p><strong>Immediate checks<\/strong>\n   &#8211; After any intervention (such as strabismus surgery), follow-up exams assess alignment in primary gaze, control, and whether DVD is less noticeable.<\/p>\n<\/li>\n<li>\n<p><strong>Follow-up<\/strong>\n   &#8211; Ongoing visits track stability, associated strabismus patterns, and visual development\u2014especially in children.<\/p>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Types \/ variations<\/h2>\n\n\n\n<p>DVD varies in presentation, and clinicians often describe it using practical patterns rather than a single rigid classification.<\/p>\n\n\n\n<p>Common variations include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Unilateral vs bilateral DVD<\/strong><\/li>\n<li>DVD can appear mainly in one eye or in both eyes.<\/li>\n<li>\n<p>Even when bilateral, it may be <strong>asymmetric<\/strong> (one eye drifts up more often or by a larger amount).<\/p>\n<\/li>\n<li>\n<p><strong>Manifest vs latent tendency<\/strong><\/p>\n<\/li>\n<li>Some people show DVD frequently in everyday viewing (more \u201cmanifest\u201d in day-to-day behavior).<\/li>\n<li>\n<p>Others show it mainly during <strong>cover testing<\/strong> or when fatigued (more \u201clatent\u201d in routine life).<\/p>\n<\/li>\n<li>\n<p><strong>Frequency and control<\/strong><\/p>\n<\/li>\n<li>DVD may be rare and brief, or more frequent and noticeable.<\/li>\n<li>\n<p>Control can vary with attention, illness, fatigue, and visual clarity.<\/p>\n<\/li>\n<li>\n<p><strong>DVD with associated strabismus patterns<\/strong><\/p>\n<\/li>\n<li>\n<p>DVD is commonly discussed alongside early-onset horizontal strabismus patterns (for example, longstanding esotropia) and may coexist with:<\/p>\n<ul>\n<li><strong>Inferior oblique overaction<\/strong> (an over-elevation-in-adduction pattern)<\/li>\n<li><strong>Alphabet patterns<\/strong> (A- or V-pattern strabismus)<\/li>\n<li><strong>Latent nystagmus<\/strong> (nystagmus that becomes more apparent when one eye is covered)<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Sensory context<\/strong><\/p>\n<\/li>\n<li>The strength of binocular fusion, presence of suppression, and quality of vision in each eye can influence how DVD appears during examination.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pros and cons<\/h2>\n\n\n\n<p>Pros:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Helps clinicians <strong>name and describe<\/strong> a distinct vertical drift pattern seen in strabismus exams<\/li>\n<li>Supports a <strong>more accurate differential diagnosis<\/strong> compared with treating all vertical deviations as the same condition<\/li>\n<li>Provides a framework for <strong>tracking change over time<\/strong> (frequency, symmetry, and magnitude)<\/li>\n<li>Can inform <strong>surgical planning<\/strong> when cosmetic alignment or control is a goal (varies by clinician and case)<\/li>\n<li>Encourages evaluation of <strong>binocular vision and sensory factors<\/strong>, not only muscle function<\/li>\n<li>Useful for patient and caregiver education: explains why the eye drifts <strong>more when covered or tired<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Cons:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DVD can be <strong>variable and intermittent<\/strong>, making measurement and comparisons between visits harder (varies by clinician and case)<\/li>\n<li>It may coexist with other deviations, so the clinical picture can be <strong>complex<\/strong> (horizontal strabismus, oblique overaction, patterns)<\/li>\n<li>The term may be confusing to non-clinicians; \u201cdissociated\u201d and \u201cdeviation\u201d require explanation<\/li>\n<li>Management goals are often <strong>improvement rather than perfection<\/strong>, and expectations require careful counseling (varies by clinician and case)<\/li>\n<li>Treatment discussions may involve surgery, and outcomes can depend on multiple patient-specific factors (varies by clinician and case)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Aftercare &amp; longevity<\/h2>\n\n\n\n<p>Because DVD is a condition rather than a one-time product, \u201caftercare\u201d generally refers to <strong>long-term monitoring and support<\/strong> around vision development and alignment.<\/p>\n\n\n\n<p>Factors that can influence outcomes and longevity of control include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Severity and frequency<\/strong> of the deviation: larger, more frequent DVD may remain more noticeable over time.<\/li>\n<li><strong>Binocular vision quality:<\/strong> stereopsis and fusion capability can affect how strongly DVD manifests when dissociated.<\/li>\n<li><strong>Refractive error and clarity of vision:<\/strong> clear, balanced input can influence fixation behavior and control (effects vary by clinician and case).<\/li>\n<li><strong>Amblyopia or fixation preference:<\/strong> unequal vision may make one eye more likely to drift when it is not fixating.<\/li>\n<li><strong>Coexisting strabismus patterns:<\/strong> horizontal deviations and oblique overaction can affect appearance and management choices.<\/li>\n<li><strong>Follow-up consistency:<\/strong> regular documentation helps clinicians detect changes and adjust the overall plan (timing varies by clinician and case).<\/li>\n<li><strong>If surgery is performed:<\/strong> longevity depends on the initial pattern, surgical approach, healing response, and the presence of additional alignment components (varies by clinician and case).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Alternatives \/ comparisons<\/h2>\n\n\n\n<p>DVD is not \u201creplaced\u201d by an alternative in the way a medication might be. Instead, clinicians consider different <strong>management approaches<\/strong> depending on impact and associated conditions.<\/p>\n\n\n\n<p>Common comparisons include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Observation \/ monitoring vs intervention<\/strong><\/li>\n<li>Observation is often used when DVD is mild, intermittent, and not functionally or socially significant.<\/li>\n<li>\n<p>Intervention (often surgical) may be considered when DVD is frequent, prominent, or interferes with alignment goals (varies by clinician and case).<\/p>\n<\/li>\n<li>\n<p><strong>Glasses (refractive correction) vs no correction<\/strong><\/p>\n<\/li>\n<li>Correcting refractive error does not \u201ccure\u201d DVD, but clearer vision can support better fixation and binocular use in some patients (varies by clinician and case).<\/li>\n<li>\n<p>Glasses are primarily used to address refractive error and visual development rather than directly treating the dissociated drift.<\/p>\n<\/li>\n<li>\n<p><strong>Prisms vs no prisms<\/strong><\/p>\n<\/li>\n<li>\n<p>Prisms are commonly discussed for some forms of diplopia and small deviations, but DVD is often intermittent and dissociated, which can limit how useful prism correction is (varies by clinician and case).<\/p>\n<\/li>\n<li>\n<p><strong>Amblyopia management vs alignment-first strategies<\/strong><\/p>\n<\/li>\n<li>When amblyopia is present, improving visual input may be prioritized as part of the overall plan because sensory factors influence alignment control.<\/li>\n<li>\n<p>In other cases, alignment management and amblyopia support occur in parallel (varies by clinician and case).<\/p>\n<\/li>\n<li>\n<p><strong>Surgery for DVD vs surgery for associated horizontal strabismus<\/strong><\/p>\n<\/li>\n<li>Many patients with DVD also have horizontal misalignment. Surgical planning may address one or both components depending on what is most impactful.<\/li>\n<li>Different muscle procedures may be chosen based on whether the DVD is unilateral\/bilateral and whether oblique overaction is present (varies by clinician and case).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">dissociated vertical deviation (DVD) Common questions (FAQ)<\/h2>\n\n\n\n<p><strong>Q: Is dissociated vertical deviation (DVD) the same as a \u201clazy eye\u201d?<\/strong><br\/>\nNo. \u201cLazy eye\u201d usually refers to <strong>amblyopia<\/strong>, where vision is reduced in an eye due to abnormal visual development. DVD is an <strong>alignment<\/strong> phenomenon where an eye drifts upward when binocular viewing is disrupted, though amblyopia can coexist with DVD.<\/p>\n\n\n\n<p><strong>Q: Does dissociated vertical deviation (DVD) cause double vision?<\/strong><br\/>\nMany children with DVD do not report double vision because the brain can suppress one eye\u2019s image when alignment is unstable. Some older patients or those without strong suppression may notice visual discomfort or occasional diplopia, but symptoms vary by clinician and case.<\/p>\n\n\n\n<p><strong>Q: Is DVD something you can see all the time?<\/strong><br\/>\nOften it is <strong>intermittent<\/strong>. It may be most noticeable when one eye is covered, when a person is tired, or when attention relaxes. In some people it becomes apparent frequently enough to be noticed in daily life or photos.<\/p>\n\n\n\n<p><strong>Q: Is dissociated vertical deviation (DVD) painful?<\/strong><br\/>\nDVD itself is not typically described as painful. However, any coexisting eye strain, focusing difficulty, or binocular stress can feel uncomfortable for some people, and experiences vary.<\/p>\n\n\n\n<p><strong>Q: How do clinicians test for DVD during an eye exam?<\/strong><br\/>\nDVD is commonly identified during <strong>cover testing<\/strong>, where one eye is briefly covered and the examiner watches how the uncovered or covered eye moves. Measurements may be taken with prisms to estimate the size of the deviation when it appears, though results can vary because DVD is often variable.<\/p>\n\n\n\n<p><strong>Q: Does DVD go away on its own?<\/strong><br\/>\nDVD may remain present over time, but how noticeable it is can change with age, attention, and visual development. In some people it stays mild and intermittent, while in others it becomes more apparent; the course varies by clinician and case.<\/p>\n\n\n\n<p><strong>Q: What treatments are used for dissociated vertical deviation (DVD)?<\/strong><br\/>\nManagement may include observation, correction of refractive error, addressing amblyopia when present, and in selected cases <strong>strabismus surgery<\/strong> aimed at reducing the visible upward drift. The choice depends on severity, frequency, associated deviations, and exam findings (varies by clinician and case).<\/p>\n\n\n\n<p><strong>Q: How long do results last if surgery is performed?<\/strong><br\/>\nStrabismus surgery can reduce the prominence or frequency of DVD, but long-term stability depends on individual factors and associated strabismus patterns. Some patients may need additional procedures or ongoing monitoring over time; outcomes vary by clinician and case.<\/p>\n\n\n\n<p><strong>Q: What does treatment usually cost?<\/strong><br\/>\nCosts vary widely depending on the setting, region, insurance coverage, testing performed, and whether surgery is involved. Clinics may also differ in how visits and orthoptic measurements are billed; cost ranges vary by clinician and case.<\/p>\n\n\n\n<p><strong>Q: Can someone with DVD drive or use screens normally?<\/strong><br\/>\nMany people with DVD can use screens and perform daily tasks normally, especially if the deviation is intermittent and suppression is strong. Driving and screen tolerance depend on overall visual acuity, binocular function, and symptoms, which vary by individual and should be assessed clinically.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>dissociated vertical deviation (DVD) is an eye alignment condition where one eye drifts upward when the eyes are not working together as a team. It is most noticeable when one eye is covered or when a person is tired or not focusing well. DVD is commonly discussed in pediatric ophthalmology and strabismus (eye misalignment) clinics. Clinicians use the term to describe a specific pattern of vertical drifting that differs from many other causes of hypertropia (an eye that sits higher).<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-3273","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview - Best Eye Hospitals<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview - Best Eye Hospitals\" \/>\n<meta property=\"og:description\" content=\"dissociated vertical deviation (DVD) is an eye alignment condition where one eye drifts upward when the eyes are not working together as a team. It is most noticeable when one eye is covered or when a person is tired or not focusing well. DVD is commonly discussed in pediatric ophthalmology and strabismus (eye misalignment) clinics. Clinicians use the term to describe a specific pattern of vertical drifting that differs from many other causes of hypertropia (an eye that sits higher).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/\" \/>\n<meta property=\"og:site_name\" content=\"Best Eye Hospitals\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-27T14:43:24+00:00\" \/>\n<meta name=\"author\" content=\"dreye\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"dreye\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"12 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/\",\"url\":\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/\",\"name\":\"dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview - Best Eye Hospitals\",\"isPartOf\":{\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/#website\"},\"datePublished\":\"2026-02-27T14:43:24+00:00\",\"author\":{\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/#\/schema\/person\/4021f481cfccb939861999010538024c\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.besteyehospitals.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/#website\",\"url\":\"https:\/\/www.besteyehospitals.com\/blog\/\",\"name\":\"My blog\",\"description\":\"Connecting You to the World\u2019s Best Eye Hospitals\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.besteyehospitals.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/#\/schema\/person\/4021f481cfccb939861999010538024c\",\"name\":\"dreye\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.besteyehospitals.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/69eb63e7f3249514583055a53b7943b46015043634892a817520c7b299ddf648?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/69eb63e7f3249514583055a53b7943b46015043634892a817520c7b299ddf648?s=96&d=mm&r=g\",\"caption\":\"dreye\"},\"url\":\"https:\/\/www.besteyehospitals.com\/blog\/author\/dreye\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview - Best Eye Hospitals","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.besteyehospitals.com\/blog\/dissociated-vertical-deviation-dvd-definition-uses-and-clinical-overview\/","og_locale":"en_US","og_type":"article","og_title":"dissociated vertical deviation (DVD): Definition, Uses, and Clinical Overview - Best Eye Hospitals","og_description":"dissociated vertical deviation (DVD) is an eye alignment condition where one eye drifts upward when the eyes are not working together as a team. 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