Overview
Farsightedness Or Hyperopia, Occurs When Light Entering The Eye Focuses Behind The Retina, Instead Of Directly On It. This Is Caused By A Cornea That Is Flatter, Or An Eye That Is Shorter, Than A Normal Eye. Farsighted People Usually Have Trouble Seeing Up Close, But May Also Have Difficulty Seeing Far Away As Well.
Common Signs Of Farsightedness Include Difficulty In Concentrating And Maintaining A Clear Focus On Near Objects, Eye Strain, Fatigue And/Or Headaches After Close Work, Aching Or Burning Eyes, Irritability Or Nervousness After Sustained Concentration.
Common Vision Screenings, Often Done In Schools, Are Generally Ineffective In Detecting Farsightedness. A Comprehensive Optometric Examination Will Include Testing For Farsightedness.
In Mild Cases Of Farsightedness, Your Eyes May Be Able To Compensate Without Corrective Lenses. In Other Cases, Your Optometrist Can Prescribe Eyeglasses Or Contact Lenses To Optically Correct Farsightedness By Altering The Way The Light Enters Your Eyes.
Young People With Mild To Moderate Hyperopia Are Often Able To See Clearly Because Their Natural Lens Can Adjust, Or Accommodate To Increase The Eye’s Focusing Ability. However, As The Eye Gradually Loses The Ability To Accommodate (Beginning At About 40 Years Of Age), Blurred Vision From Hyperopia Often Becomes More Apparent.
Causes
Farsightedness Is The Result Of The Visual Image Being Focused Behind The Retina Rather Than Directly On It. It May Be Caused By The Eyeball Being Too Small Or The Focusing Power Being Too Weak.Farsightedness Is Often Present From Birth, But Children Have A Very Flexible Eye Lens, Which Helps Make Up For The Problem. Most Children Outgrow The Condition. As Aging Occurs, Glasses Or Contact Lenses May Be Required To Correct The Vision. If You Have Family Members Who Are Farsighted, You Are Also More Likely To Become Farsighted.
Signs And Symptoms
- Difficulty Seeing Up Close
- Blurred Distance Vision (Occurs With Higher Amounts Of Hyperopia)
- Eye Fatigue When Reading
- Eye Strain (Headaches, Pulling Sensation, Burning)
- Crossed Eyes In Children
Detection And Diagnosis
Hyperopia Is Detected With A Vision Test Called A Refraction. Young Patients’ Eyes Are Dilated For This Test So They Are Unable To Mask Their Farsightedness With Accommodation. This Is Called A Wet Refraction.Treatment
The Treatment For Hyperopia Depends On Several Factors Such As The Patient’s Age, Activities, And Occupation. Young Patients May Or May Not Require Glasses Or Contact Lenses, Depending On Their Ability To Compensate For Their Farsightedness With Accommodation. Glasses Or Contact Lenses Are Required For Older Patients.Farsightedness Can Be Corrected With Glasses Or Contact Lenses To Change The Way Light Rays Bend Into The Eyes. If Your Glasses Or Contact Lens Prescription Begins With Plus Numbers, Like +2.50, You Are Farsighted.
You May Need To Wear Your Glasses Or Contacts All The Time Or Only When Reading, Working On A Computer Or Doing Other Close-Up Work.
Refractive Surgery, Such As LASIK Or CK, Is Another Option For Correcting Hyperopia. Surgery May Reduce Or Eliminate Your Need To Wear Glasses Or Contact Lenses. Investigational Procedures Involving Corneal Inlays And Onlays May Be A Future Option For Correcting Hyperopia.
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