14Feb
Myopia control Ortho-K lenses | Dr Rakib Hasan |Myopia Treatment

Orthokeratology (OK) is a non-surgical procedure that uses specialized contact lenses to reshape the cornea while you sleep, with the goal of controlling myopia (nearsightedness) progression. Here’s an overview:

What is Orthokeratology?

Orthokeratology, also known as corneal reshaping or corneal molding, is a procedure that uses customized contact lenses to gently reshape the cornea while you sleep.

How Does OK Work?

  1. Customized lenses: OK lenses are designed to match the unique shape of your cornea.
  2. Worn overnight: You wear the lenses while you sleep, typically for 6-8 hours.
  3. Corneal reshaping: The lenses gently reshape the cornea, flattening it to reduce myopia.
  4. Corrected vision: When you remove the lenses in the morning, your vision is corrected, and you can see clearly without glasses or contacts.

Benefits of OK for Myopia Control

  1. Slows myopia progression: OK has been shown to slow the progression of myopia in children and young adults.
  2. Corrects vision: OK can correct myopia, reducing or eliminating the need for glasses or contacts.
  3. Reversible: The effects of OK are reversible, meaning that if you stop wearing the lenses, your cornea will return to its original shape.
  4. Non-surgical: OK is a non-invasive, non-surgical procedure.

Candidacy for OK

  1. Children and young adults: OK is most effective for children and young adults with progressive myopia.
  2. Mild to moderate myopia: OK is suitable for individuals with mild to moderate myopia (up to -6.00 diopters).
  3. Healthy eyes: Candidates should have healthy eyes, free from diseases or injuries that could affect the cornea.

Risks and Side Effects

  1. Discomfort: Some patients may experience discomfort or dryness when wearing the lenses.
  2. Infection risk: As with any contact lens wear, there is a risk of eye infection with OK.
  3. Corneal abrasion: Rarely, the lenses can cause corneal abrasions or scratches.

Cost and Insurance

  1. Cost: The cost of OK varies depending on the location, doctor, and lenses used.
  2. Insurance: Some insurance plans may cover OK, but coverage varies widely.

Conclusion

Orthokeratology is a safe and effective procedure for controlling myopia progression and correcting vision. If you’re interested in OK, consult with an eye doctor to determine if you’re a suitable candidate.

Dr Rakib Hasan , M.Optom

Convergence insufficiency
13Feb
Convergence insufficiency (CI) | Vision Therapy In Kolkata

Dr Rakib Hasan ,M.Optom India

Convergence insufficiency (CI) | Vision Therapy In Kolkata

Convergence Insufficiency (CI) is a common vision disorder where the eyes have difficulty working together to focus on near objects. This can cause eye strain, blurred vision, and difficulties with reading, learning, and daily activities.

Symptoms

  1. Eye strain: Fatigue, discomfort, or pain in the eyes, especially when reading or performing near tasks.
  2. Blurred vision: Difficulty seeing clearly, especially when focusing on near objects.
  3. Double vision: Seeing two images of a single object, especially when reading or performing near tasks.
  4. Headaches: Frequent or recurring headaches, especially after reading or performing near tasks.
  5. Difficulty with reading: Trouble reading, including difficulty with comprehension, fluency, or focus.
  6. Difficulty with learning: Trouble learning new information, especially in academic settings.
  7. Avoidance of near tasks: Avoiding activities that require near vision, such as reading, writing, or using digital devices.

Causes

  1. Genetics: Family history of convergence insufficiency or other vision disorders.
  2. Brain injury: Traumatic brain injury or concussion can cause CI.
  3. Neurological conditions: Conditions like ADHD, autism, or multiple sclerosis can increase the risk of CI.
  4. Prolonged near work: Extended periods of near work, such as reading or using digital devices, can contribute to CI.

Diagnosis

  1. Comprehensive eye exam: A thorough eye exam to assess visual acuity, refraction, and eye alignment.
  2. Convergence testing: Specialized tests to evaluate the eyes’ ability to converge and focus on near objects.
  3. Near point of convergence testing: Measures the closest point at which the eyes can converge and focus.

Treatment

Vision Therapy In Kolkata :

  1. Vision therapy: Customized exercises and activities to improve eye coordination, convergence, and focusing abilities.
  2. Pencil push-ups: A simple exercise where the patient focuses on a pencil or pen as it is moved towards their nose.
  3. Computer-based therapy: Interactive software programs to improve convergence and eye coordination.
  4. Prism lenses: Specialized lenses that can help improve eye alignment and convergence.
  5. Surgery: In some cases, surgery may be necessary to correct underlying eye alignment issues.

Prognosis

With proper treatment, most people with convergence insufficiency can experience significant improvement in their symptoms and vision. However, some people may continue to experience mild symptoms, and regular follow-up appointments with an eye care professional are necessary to monitor progress.

Dr Rakib Hasan

Vision Therapy In Kolkata

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