AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesDisciplines and OccupationsAnthropology, Education, Sociology and Social PhenomenaTechnology, Industry, AgricultureInformation ScienceNamed GroupsHealth CareGeographicals
HyperopiaRefractive ErrorsMyopiaRefraction, OcularEyeglassesRetinoscopyAstigmatismAccommodation, OcularEmmetropiaVisual AcuityVision ScreeningAnisometropiaEyeBiometryMydriaticsAxial Length, EyeCyclopentolateStrabismusAmblyopiaVision TestsEsotropiaRefractive Surgical ProceduresPresbyopiaLensesSensory DeprivationKeratomileusis, Laser In SituCorneal TopographyContact LensesAnterior ChamberVision DisordersSingaporeVisually Impaired PersonsVision, LowOptometryCorneaPupilPhotorefractive KeratectomyRefractometryKeratotomy, RadialLasers, ExcimerPrevalenceEye DiseasesCataractLens, CrystallineBlindnessVitreous BodyTupaiidaeVision, BinocularExotropiaAge DistributionAberrometryLens Implantation, IntraocularDiagnostic Techniques, OphthalmologicalMyopia, DegenerativeSex DistributionAsian Continental Ancestry GroupCross-Sectional StudiesLos AngelesInterferometryMicrophthalmosOphthalmologic Surgical ProceduresEast TimorBarbadosBaltimoreHolmiumBelizeLens DiseasesChickensDiagnostic ErrorsAlbinism, OcularTropicamideVision, OcularOptics and PhotonicsReproducibility of ResultsEye Diseases, HereditaryChoroidIndiaEthnic GroupsContact Lenses, HydrophilicTomography, Optical CoherencePhotographyOphthalmologyRetinopathy of PrematurityFollow-Up StudiesConvergence, OcularDiplopiaVision, MonocularOcular Physiological PhenomenaCataract ExtractionUrban PopulationArizonaPseudophakiaFovea CentralisPhacoemulsificationProspective StudiesRisk FactorsIntraocular PressureNystagmus, Congenital
FarsightednessAstigmatismNearsightednessTypes of refractive errorPresbyopiaRetinaBlurry visionMyopia and hyperopiaCataractType of refractive errorMyopicSurgeryStrabismusDetermination of refractive errorCornealDioptersDistant objectsPeople with refractiveCorrectionPrevalenceLevels of hyperopiaHyperopicVisionCornea or lens1.00GlassesSymptomsLensesComplicationsOccurGlaucomaSurgicalAmetropiaAnisometropiaCommonStrainCurvatureVisual acuityOccursChildrenOcularDisordersCorrectRetinalAmblyopiaSevere
Farsightedness25
  • Farsightedness: When the optics are too weak for the length of the eyeball, one has hyperopia or farsightedness. (wikipedia.org)
  • Hyperopia, or farsightedness , is a condition that has symptoms similar to presbyopia. (healthline.com)
  • Hyperopia is commonly known as farsightedness or long-sightedness, and sometimes hypermetropia. (guidedogs.org.uk)
  • Children with hyperopia can often see at close and far distances by squinting to compensate for their farsightedness. (guidedogs.org.uk)
  • LASEK is specifically used to correct astigmatism, hyperopia (farsightedness), and myopia (nearsightedness). (medscape.com)
  • Both myopia (nearsightedness) and hyperopia (farsightedness) are caused by refractive errors in the human eye. (thebetterindia.com)
  • This eye condition includes myopia (nearsightedness), hyperopia (farsightedness), and astigmatism (when the cornea or lens has a different shape than normal). (cdc.gov)
  • Just like eyeglasses, they correct refractive errors such as myopia (nearsightedness) and hyperopia (farsightedness). (howstuffworks.com)
  • Hyperopia, or farsightedness, happens when the eyeball is too short, causing it to focus light rays behind the retina. (howstuffworks.com)
  • Farsightedness is a type of refractive error that makes distant objects appear in focus, while nearby objects appear out of focus and blurry. (zeiss.com)
  • Farsightedness (hyperopia) is when a person can see distant objects clearly but have difficulty focusing on near objects. (medicalnewstoday.com)
  • WHAT IS HYPEROPIA ( FARSIGHTEDNESS)? (aapos.org)
  • Farsightedness (hyperopia) is a common vision condition in which you can see distant objects clearly, but objects nearby may be blurry. (mayoclinic.org)
  • Hyperopia or farsightedness is blurred vision that occurs when light focuses behind the retina because the eye is small or short. (angelfire.com)
  • Refractive errors are the most common vision problems for children, including myopia (nearsightedness), hyperopia (farsightedness) and astigmatism. (eaglenews.org)
  • The most common vision problem in school-aged children is blurry vision or refractive error caused by nearsightedness (myopia), farsightedness (hyperopia) and astigmatism resulting in blurry vision. (aoa.org)
  • LASIK eye surgery (laser in-situ keratomileusis) is the preferred and most common laser eye surgery procedure to correct farsightedness (hyperopia). (keywhitman.com)
  • Farsightedness is a common refractive error that causes light to incorrectly bounce off the retina, skewing vision. (keywhitman.com)
  • If you have been diagnosed with farsightedness, nearsightedness or any other refractive error in your vision and use prescribed eyeglasses or contact lenses to correct your vision, contact Key-Whitman for a free consultation to determine if you are a candidate for LASIK eye surgery. (keywhitman.com)
  • Do you have questions about how LASIK eye surgery can correct refractive errors such as farsightedness? (keywhitman.com)
  • Vision being blurry close up is caused by an eye disorder called farsightedness(hyperopia). (xshotpix.com)
  • Farsightedness is a refractive error meaning that light rays bend incorrectly in your eye to transmit images to the brain. (xshotpix.com)
  • LASIK can correct nearsightedness (myopia), farsightedness (hyperopia), and astigmatism by reshaping the cornea, the clear front surface of the eye. (lasikplus.com)
  • Hyperopia (farsightedness) occurs when the front of your eye is too flat, or the eyeball length is too short. (healthnews.com)
  • In hyperopia (farsightedness), the point of focus is behind the retina because the cornea is too flatly curved, the axial length is too short, or both. (msdmanuals.com)
Astigmatism23
Nearsightedness1
  • Nearsightedness is a common refractive error that can lead to hazy eyesight combined with squinting, headaches and eyestrain. (zeiss.com)
Types of refractive error1
  • This article updates previous reports and focuses on the types of refractive error amenable to refractive surgery interventions. (health.mil)
Presbyopia12
Retina14
  • Refractive error, also known as refraction error, is a problem with focusing light accurately on the retina due to the shape of the eye and or cornea. (wikipedia.org)
  • An eye that has no refractive error when viewing distant objects is said to have emmetropia or be emmetropic meaning the eye is in a state in which it can focus parallel rays of light (light from distant objects) on the retina, without using any accommodation. (wikipedia.org)
  • Spherical errors occur when the optical power of the eye is either too large or too small to focus light on the retina. (wikipedia.org)
  • A refractive error in which rays of light entering the eye parallel to the optic axis are brought to a focus behind the retina, as a result of the eyeball being too short from front to back. (harvard.edu)
  • 1 Refractive errors occur when the focusing power of the eye does not allow for a sharp image on the retina, resulting in a blurred image and loss of detail. (health.mil)
  • Hyperopia is usually due to a shorter axial length of the eye, causing an image to be defocused at a point behind the retina and resulting in distant objects being seen more clearly than objects that are near. (health.mil)
  • Refractive errors occur when light does not correctly focus on the retina, which is the light-sensitive tissue at the back of the eye. (cdc.gov)
  • Sometimes the cornea doesn't focus light precisely on the retina because of a refractive error . (howstuffworks.com)
  • Hyperopia treatment aims to help light focus correctly on the retina. (medicalnewstoday.com)
  • If light rays are not focused well on the retina, a refractive error may be present. (aapos.org)
  • Hyperopia occurs when light rays focus behind the retina (because the eye is either too short or has too little focusing power) and causes objects close up and far away to look blurry. (aapos.org)
  • Hyperopia is an eye defect in that light rays, rather than impact exactly on the retina, are concentrated at a point located behind the same. (newsofthenorth.net)
  • When your eye has a refractive error, it doesn't focus light properly onto the back of your eye (retina). (healthnews.com)
  • When images are not properly focused on the retina, a refractive error exists. (myhealth.gov.my)
Blurry vision2
  • People with refractive error frequently have blurry vision. (wikipedia.org)
  • Hyperopia primarily causes blurry vision up close. (healthnews.com)
Myopia and hyperopia1
Cataract1
Type of refractive error1
Myopic2
  • 5,6 Routine screening for vitreous detachment is required, especially in myopic patients because they are at increased risk of retinal detachment after refractive lens exchange (RLE). (crstoday.com)
  • Myopic refractive errors in children frequently increase until the child stops growing. (msdmanuals.com)
Surgery25
  • You may be prescribed corrective glasses or contact lenses, Some patients prefer surgery to treat refractive errors, freeing them from glasses and contact lenses. (dralisonchiu.com.au)
  • What Is Refractive Surgery? (medlineplus.gov)
  • Refractive errors are corrected with eyeglasses, contact lenses, or surgery. (wikipedia.org)
  • Refractive surgery permanently changes the shape of the cornea. (wikipedia.org)
  • Retrospective comparative analysis of intraocular lens calculation formulas after hyperopic refractive surgery. (harvard.edu)
  • Future analyses should focus on the specific effects of military refractive surgery programs on the readiness of service members. (health.mil)
  • The data presented here allow for ongoing monitoring of refractive error to direct interventions such as refractive surgery. (health.mil)
  • Optimal visual performance in the setting of refractive error usually requires correction, either through eyeglasses, contact lenses, or refractive surgery. (health.mil)
  • Some people are suitable for laser eye surgery to correct their hyperopia permanently. (guidedogs.org.uk)
  • Refractive surgery, as it is known today, was not realized until 1966 when Pureskin first appreciated its potential with the demonstration that refractive changes could be made by removing central tissue underneath a corneal flap. (medscape.com)
  • What's Driving the Shift to Lens-Based Refractive Surgery? (crstoday.com)
  • It is incumbent on eye care providers to offer an honest explanation of the potential benefits and limitations of surgery, the advantages and downsides of each IOL design, and the compromises in visual performance patients can experience after a lens-based refractive procedure. (crstoday.com)
  • Like lens-based refractive surgery, LVC has advanced in recent years. (crstoday.com)
  • Corrective lenses or refractive surgery may achieve this. (medicalnewstoday.com)
  • Contact lenses and laser surgery can also help improve vision depending on the age of the person with hyperopia. (aapos.org)
  • If you see blurry up close, and you are too young to have tired eyes, see your ophthalmologist, as it could be hyperopia, an eye defect that can be corrected with glasses, contact lenses, or surgery. (newsofthenorth.net)
  • A variety of refractive surgery techniques, which reshape the corneal stroma using laser energy, have been marketed as simple and safe alternatives to glasses or contact lenses. (aafp.org)
  • Although there are few high-quality prospective studies of long-term outcomes, complications, or stability for refractive surgery procedures, there is at least general agreement that more than 90% of appropriately selected patients achieve excellent uncorrected distance vision. (aafp.org)
  • Over the past two decades, a variety of refractive surgery techniques have been developed and marketed as simple and safe alternatives to glasses or contact lenses. (aafp.org)
  • Its popularity in this country has decreased from a peak of 1,400,000 procedures in 2006 for reasons that are not entirely clear, although millions of persons worldwide, particularly in Asia, still choose refractive surgery. (aafp.org)
  • There are few high-quality prospective studies of refractive surgery. (aafp.org)
  • Overall, there is general agreement that refractive surgery is safe and effective. (aafp.org)
  • Most studies reporting on subjective complaints lack objective data concerning persistently bothersome symptoms, and cannot distinguish between refractive error remaining after surgery and adverse effects of the surgery itself. (aafp.org)
  • Laser eye surgery, also called laser refractive surgery, is an elective procedure, i.e. it is not required medically. (healthnews.com)
  • Laser refractive surgery corrects refractive errors. (healthnews.com)
Strabismus5
  • Refractive Errors and Concomitant Strabismus: A Systematic Review and Meta-analysis. (harvard.edu)
  • Refractive errors were based We assessed the records of 265 patients to diplopia, diminished visual acuity on spherical equivalents (sphere +1/2 with vertical strabismus (130 males and and palpebral fissure changes [6]. (who.int)
  • Children with uncorrected hyperopia can develop other vision problems, including lazy eye (amblyopia) , squint (strabismus) , and may have problems at school, for example struggling to see learning materials. (guidedogs.org.uk)
  • The most common causes of vision problems in children are amblyopia (a neurodevelopmental disorder that arises from abnormal processing of visual images that leads to a functional reduction of visual acuity) and its associated risk factors ( Table 1 ), nonamblyopic strabismus and nonamblyopic refractive error. (uspreventiveservicestaskforce.org)
  • Around 5% of white, African American, and Hispanic 6- to 9-month-old infants have hyperopia greater than +3.5 D in at least one meridian, 31 - 34 and infants who do not lose this hyperopia through emmetropization 31 , 35 , 36 are at greatest risk for the strabismus and secondary amblyopia. (arvojournals.org)
Determination of refractive error2
  • Visual acuity testing and refraction (determination of refractive error) as needed should be done every 1 or 2 years. (msdmanuals.com)
  • Thus, it is difficult to recommend this test for the clinical determination of refractive error. (bvsalud.org)
Corneal3
  • Refractive Changes After Corneal Stromal Filler Injection for the Correction of Hyperopia. (harvard.edu)
  • Asimetrías en la topografía e índice de refracción de la superficie corneal que afectan a la agudeza visual. (bvsalud.org)
  • Asymmetries in the topography and refractive index of the corneal surface that affect visual acuity. (bvsalud.org)
Diopters4
  • Refraction was defined at baseline as follows: myopia as spherical equivalent of -1.00 diopters (D) or less, emmetropia as -0.75 to +0.75 D, and hyperopia as +1.00 D or more. (nih.gov)
  • Summit Laser then introduced its holmium:YAG laser, first successfully used by Theo Seiler, MD, in 1990 for contact laser thermal keratoplasty (LTK) for the correction of hyperopia of up to 5 diopters (D), which also eventually failed. (medscape.com)
  • Refractive power is measured in diopters. (angelfire.com)
  • Children with hyperopia greater than +3.5 diopters (D) are at increased risk for developing refractive esotropia. (arvojournals.org)
Distant objects5
  • An eye that has refractive error when viewing distant objects is said to have ametropia or be ametropic. (wikipedia.org)
  • Hyperopia is a common refractive error that causes nearby objects to appear blurry while distant objects look clear. (guidedogs.org.uk)
  • People who are born with hyperopia may be able to focus on distant objects during childhood. (medicalnewstoday.com)
  • Hyperopia patients cannot see distant objects clearly and more vague for near objects, while some symptoms can be improved by correction (mild hyperopia, younger or people with strong correction abilities, can compensate for the refractive defect strengthening self-regulation), and get normal distance vision (under corrective treatment). (glassesshop.com)
  • The primary symptom of refractive errors is blurred vision for distant objects, near objects, or both. (msdmanuals.com)
People with refractive1
Correction4
  • Laser and laserlike surgical procedures for the correction of hyperopia have a checkered history. (medscape.com)
  • Laser-assisted subepithelial keratectomy (LASEK) is a laser surgical procedure for the correction of refractive error. (medscape.com)
  • A high standard of care is important to success with lens-based refractive correction. (crstoday.com)
  • In comparison, the correction of hyperopia is the purpose of wearing glasses and the glasses need to be worn in everyday life. (glassesshop.com)
Prevalence5
  • Prevalence, Characteristics, and Risk Factors of Moderate or High Hyperopia among Multiethnic Children 6 to 72 Months of Age: A Pooled Analysis of Individual Participant Data. (harvard.edu)
  • 37 found that the prevalence of accommodative esotropia in children 1 to 8 years of age increased for larger values of hyperopia: 12% for RX +2 to +3 D, 38% for RX +3 to +4 D, 73% for RX +4 to +5 D, and 60% for RX greater than +5 D (see also Ref. 22 ). (arvojournals.org)
  • Objective: The objective of this study was to determine the prevalence of uncorrected refractive error among students in three selected secondary schools in Birnin Kebbi metropolis as many children with poor vision due to refractive error remain undiagnosed and perform poorly in schools. (bvsalud.org)
  • This study aimed to generate evidence on the prevalence and distribution of refractive error in Portugal. (bvsalud.org)
  • Conclusions Myopia represents the most prevalent refractive error within the sample and is the prevalence is higher in the younger age groups, demonstrating a shift towards an increase of myopia in the next years. (bvsalud.org)
Levels of hyperopia1
  • low levels of hyperopia are classified as +3.00 D in the United States and up to +5.00 D in Canada. (medscape.com)
Hyperopic1
  • Accommodative effort is thought to precipitate a convergent misalignment of the eyes as a result of increased hyperopic refractive error (an increased accommodative demand) and/or increased accommodative convergence to accommodation (AC/A) ratio (excessive accommodative convergence). (arvojournals.org)
Vision17
  • Refractive errors are common vision problems in which your eyes are not able to focus clearly on an object. (dralisonchiu.com.au)
  • Blurred vision is the most common symptom of refractive error, while impairment of vision may occur in severe cases. (dralisonchiu.com.au)
  • Refractive errors are vision problems that happen when the shape of the eye keeps you from focusing well. (medlineplus.gov)
  • Refractive errors are a common cause of impaired vision. (health.mil)
  • This eye condition occurs when vision in one eye is reduced because of a communication error between the brain and the affected eye. (cdc.gov)
  • They move with your eye and correct the refractive error closer to the eye to allow for a more natural field of vision. (howstuffworks.com)
  • Before we begin talking specifically about contacts, let's review how vision works and how lenses correct refractive vision problems. (howstuffworks.com)
  • If you've already read How Vision Works and How Refractive Vision Works you may want to skip to the next section . (howstuffworks.com)
  • People with hyperopia can see clearly far away, but their close-up vision is blurry. (howstuffworks.com)
  • However, hyperopia is experienced differently and for some, vision may be blurry, near and far. (zeiss.com)
  • The symptom of hyperopia that those affected mainly notice is that their near vision is blurred. (newsofthenorth.net)
  • The thing is, most vision problems are functional disorders, and a person's quality of vision, including refractive error and other aspects, correlates with the way they use their eyes. (iblindness.org)
  • Refractive errors refer to common issues with the vision caused by the improper passage of light through the eyes. (brobergeyecare.com)
  • It is also sometimes used during an elective "refractive lens exchange" procedure when better distance and/or near vision is desired. (vision-surgery.com)
  • LASIK (Laser-Assisted In Situ Keratomileusis) is a surgical procedure designed to correct refractive errors and improve vision. (lasikplus.com)
  • CLINICAL RELEVANCE: Optimisation of vision screening programmes can result the detection of refractive anomalies in a high proportion of school children. (bvsalud.org)
  • BACKGROUND: The Refractive Errors Among Children (REACH) programme aims to optimise outcomes of school-based vision screening in India by collaborating with hospitals and monitoring eye care throughout school attendance. (bvsalud.org)
Cornea or lens1
  • If your cornea or lens isn't evenly and smoothly curved, light rays aren't refracted properly, and you have a refractive error. (mayoclinic.org)
1.001
  • A refractive error of +1.00 in both eyes was found on cycloplegic refraction. (medscape.com)
Glasses6
Symptoms4
  • Everyone with a refractive error should have regular eye exams to check their prescription is up to date and prevent symptoms such as headaches and eye strain. (guidedogs.org.uk)
  • The symptoms of hyperopia might not be obvious at first, as they can develop gradually. (guidedogs.org.uk)
  • As age increases, the symptoms get worse gradually but the hyperopia eyesight remains normal or has no significant effects. (glassesshop.com)
  • Frowning and squinting when reading and excessive blinking or rubbing of the eyes are symptoms of refractive error in children. (msdmanuals.com)
Lenses2
Complications2
  • Refractive Error and Retinopathy Outcomes in Type 1 Diabetes: The Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Study. (harvard.edu)
  • RÉSUMÉ Le diagnostic et la prise en charge précoces d'un strabisme sont nécessaires pour éviter les complications telles qu'une amblyopie. (who.int)
Occur2
Glaucoma2
Surgical1
  • Pallikaris attempted this technique on blind human eyes in 1989 and on sighted human eyes in 1991, thereby creating a refractive surgical technique similar to the procedures currently in practice. (medscape.com)
Ametropia1
Anisometropia1
  • Other terminology include anisometropia, when the two eyes have unequal refractive power, and aniseikonia which is when the magnification power between the eyes differ. (wikipedia.org)
Common2
  • Mild hyperopia is quite common in very young children and can resolve itself by three. (guidedogs.org.uk)
  • Hyperopia is more common in the first 7 years of life. (aapos.org)
Strain1
  • Hyperopia (see below), or working on digital devices such as tablets, laptops or smartphones for long periods of time can put a lot of strain on your eyes, and lead to blurry eyesight. (zeiss.com)
Curvature2
Visual acuity1
Occurs2
Children7
Ocular3
  • Hyperopia may be associated with 5-year risk of ocular hypertension, a finding that needs further investigation. (nih.gov)
  • It can be due to refractive error, binocular fusion abnormalities, or neuromuscular anomalies of ocular movements. (nih.gov)
  • Refractive error can contribute to eyestrain (eye discomfort and fatigue), in which excessive staring (eg, at a computer screen) can lead to ocular surface desiccation, causing eye irritation, itching, visual fatigue, foreign body sensation, and redness. (msdmanuals.com)
Disorders1
  • In fact, nearly 150 billion Americans require eyewear to correct refractive disorders, such ad myopia. (angelfire.com)
Correct2
Retinal1
  • Development of Refractive Errors-What Can We Learn From Inherited Retinal Dystrophies? (harvard.edu)
Amblyopia1
Severe2
  • But it can tell a person if his/her refractive error is severe enough to merit a visit to the doctor. (thebetterindia.com)
  • People with severe hyperopia can only focus on objects far away, or they cannot focus at all. (medicalnewstoday.com)