Hypermetropia

 Hypermetropia

Hypermetropia (also known as hyperopia or farsightedness) is a common refractive error of the eye where distant objects can be seen clearly, but near objects appear blurry.

Causes of Hypermetropia

Shorter eyeball length – the eyeball is shorter than normal, so light focuses behind the retina.

  • Flat cornea – the cornea is less curved than normal.
  • Thin lens – the lens has less focusing power
  • Age-related changes – decreased elasticity of the lens (different from presbyopia, but similar effects).


Symptoms

  • Blurred vision for close objects.
  • Eye strain or headaches, especially when reading or doing close work
  • Squinting to see clearly.
  • In severe cases, distant vision may also be blurry.


Diagnosis 

  • Visual acuity test.
  • Retinoscopy or automated refraction tests.
  • Eye examination by an optometrist or ophthalmologist.


Treatment

  • Convex (converging) lenses – Glasses or contact lenses with a ‘+’ power lens.

  • Refractive surgery – LASIK or PRK to reshape the cornea.

  • Lens implants – in severe cases.


Key Difference from Myopia (Nearsightedness)

In hypermetropia, light focuses behind the retina.

In myopia, light focuses in front of the retina.

For further process click https://medorbis.ai


Comments

Post a Comment

Popular posts from this blog

MYOPIA

What is Myopia? Myopia (commonly called nearsightedness) is a vision condition where a person can see nearby objects clearly but distant objects appear blurry. What Causes Myopia? It usually occurs when: The eyeball is too long from front to back. The cornea (the clear front surface of the eye) is too curved. As a result, light rays focus in front of the retina, instead of directly on it. Symptoms of Myopia: Blurred vision when looking at distant objects. Squinting to see clearly. Eye strain or headaches (especially after focusing on distant objects). Difficulty seeing while driving, especially at night (night myopia). Risk Factors: Genetics : If one or both parents are myopic, the risk increases. Excessive near work : Prolonged reading, computer, or phone use. Lack of outdoor time: Spending less time in natural light, especially in childhood. Treatment and Management Corrective Lenses: Eyeglasses or contact lenses with minus (–) power lenses. Refractive Surgery: LASIK, PRK, SMILE – re...
Read more

Important of colour check

  Why is it important to check colour vision? Checking colour vision is important for several reasons: 1. Early Detection of Vision Disorders It helps detect congenital colour blindness, especially in children. Can also reveal acquired conditions due to eye diseases (e.g., glaucoma, optic neuritis). 2. Career Requirement Certain professions require normal colour vision, such as: Pilots Electricians Military personnel Police officers Graphic designers Drivers Railway and maritime workers 3. Safety and Daily Functioning Correct colour recognition is vital for identifying traffic lights, warning signs, and colour-coded materials. Difficulty distinguishing colours can impact school performance, cooking, clothing choices, and reading charts or graphs. 4. Monitoring Disease Progression Colour vision testing helps track changes in patients with: Diabetic retinopathy Multiple sclerosis Macular degeneration Medication side effects (e.g., ethambutol) 5. Educational Guidance In children, dete...
Read more