27Feb
About Behavioral Optometry ,Dr Rakib Hasan ,Vision Therapy In Bangladesh .

Behavioral optometry (also called developmental or functional optometry) focuses on how vision affects and interacts with other systems like posture, balance, coordination, and learning. It goes beyond just 20/20 eyesight and looks at how efficiently the brain processes visual information.

Key Principles of Behavioral Optometry

Visual Skills Over Clarity: Vision is more than seeing clearly; it includes tracking, focusing, depth perception, and eye teaming.

Visual Processing & Perception: How the brain interprets what the eyes see is crucial for learning, reading, and movement.

Vision & Posture/Balance: Poor visual function can lead to issues like headaches, poor coordination, and even behavioral problems.

Neuroplasticity & Vision Therapy: Vision can be trained and improved through exercises, lenses, and therapy techniques.

Common Applications

Children with Learning Difficulties: Vision therapy helps with reading, writing, and focus.

Post-Concussion & Brain Injury Rehabilitation: Helps restore visual function after trauma.

Sports Vision Training: Enhances reaction time, hand-eye coordination, and depth perception.

Strabismus & Amblyopia Management: Exercises and specialized lenses can improve binocular vision.

Dr Rakib Hasan

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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12Feb
Vision Therapy In Kolkata | Strabismic amblyopia |Amblyopia vision Therapy In Kolkata

Dr Rakib Hasan ,M.Optom

Strabismic amblyopia, also known as strabismus-related amblyopia, is a type of lazy eye (amblyopia) caused by strabismus, a misalignment of the eyes.

Causes

  1. Strabismus: Misalignment of the eyes, causing the brain to favor one eye over the other.
  2. Esotropia: Crossed eyes, where one eye turns inward.
  3. Exotropia: Wall-eyed, where one eye turns outward.
  4. Hypertropia: Vertical misalignment, where one eye is higher than the other.

Symptoms

  1. Blurred vision: Reduced vision in the affected eye.
  2. Double vision: Seeing two images of a single object.
  3. Eye strain: Fatigue, headaches, or discomfort when using the affected eye.
  4. Depth perception difficulties: Trouble judging distances or spatial relationships.

Diagnosis

  1. Comprehensive eye exam: Assessing visual acuity, refraction, and eye alignment.
  2. Cover test: Evaluating eye alignment and movement.
  3. Retinoscopy: Measuring the reflection of light in the eyes.

Treatment

  1. Glasses or contact lenses: Correcting refractive errors and improving eye alignment.
  2. Patch therapy: Covering the stronger eye to strengthen the weaker eye.
  3. Atropine therapy: Dilating the stronger eye to reduce its dominance.
  4. Surgery: Correcting eye misalignment or removing cataracts (if present).
  5. Vision therapy: Customized exercises to improve eye coordination, depth perception, and visual processing.
Dr Rakib Hasan

Prognosis

Early detection and treatment can significantly improve visual outcomes. However, if left untreated, strabismic amblyopia can lead to permanent vision loss in the affected eye.

Complications

  1. Permanent vision loss: If left untreated, amblyopia can lead to irreversible vision loss.
  2. Depth perception difficulties: Untreated amblyopia can cause lifelong difficulties with depth perception.
  3. Social and emotional impacts: Untreated amblyopia can affect self-esteem, social interactions, and overall quality of life.

Regular eye exams and prompt treatment can help prevent these complications and ensure optimal visual development.

Vision Therapy In Kolkata

Vision Therapy In Kolkata | Strabismic amblyopia | Amblyopia vision Therapy In Kolkata


Address: 2nd floor, 1/13, Dover Terrace, opp. Dr Nihar Munsi Eye Foundation, Dover Terrace, Ballygunge, Kolkata, West Bengal 700019