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4 Hidden Signs of VisionProblems In Children

4 Hidden Signsof Vision Problemsin Children

All school activities be it classroom or online learning, sports or arts, require heavy visual involvement. A child with poorly developed vision skills may have trouble concentrating or keeping up in class. Some children may squint or hold books close to their face, but these subtle signs of poor vision often go unnoticed by parents.

Common ChildhoodEye Diseases & Conditions

As your child’s vision develops, rapid changes and eye conditions can occur. Here are a few conditions our eye doctors often find during children’s eye exams.

Left untreated, poor eyesight can lead to lazy eye

Myopia and astigmatism are refractive errors that cause blurry vision, and can be corrected with the right prescription glasses. Some refractive errors commonly found in children are myopia or nearsightedness and astigmatism (blurry, slanted or distorted vision). If your child does not see correctly for long enough, they can lose vision and get a “lazy eye”.

Amblyopia or “lazy eye” is poor vision in an eye that did not develop normally in childhood. Some common causes include uncorrected refractive errors, droopy eyelids, cataracts, and strabismus.

Strabismus or “misaligned eyes” is a condition found in 4 percent of children. One eye may look straight ahead while the other turns in, out, up or down. Strabismus requires immediate attention from a professional.

Droopy eyelids that can block vision may require surgery to raise it and preserve vision in that eye.

Your child’s eyes can appear cloudy or show abnormal “white-eye reflex” in flash photography if they have a cataract or rare eye diseases such as retinoblastoma (cancer of the retina). Although cataracts are mostly found in older people, some children are born with them or get them from an injury.

Pink eye or Conjunctivitis is irritation of the white part of the eye, from either an infection or allergy. It can be very contagious (viral or bacterial), or simply allergic. Common symptoms include red, itchy, teary eyes with sticky discharge. Pink eye can be treated at home, but in some cases, antibiotic eye drops are helpful.

Styes are red, sore lumps at the edge of eyelids, caused by a bacterial infection. Treatment involves warm compresses, in some cases with antibiotics.

Chalazions are swollen lumps on the eyelid caused by a clogged oil gland. Warm compresses effectively treat chalazions.

Around 20% of babies are born with blocked tear ducts, which affects how tears drain. The condition causes watery, irritated, or infected eyes, and can be treated with a special massage technique (done regularly, for a few months).

Boost learning skills with vision therapy (ACBO Australia)

25% of all children have binocular vision problems, where their eyes struggle to work together as a team. This causes eyestrain, double vision, nausea, and headaches, and is often mistaken for clumsiness, laziness, learning disorders or ADD/ADHD. ACBO Australia’s vision therapy programs at Sornthai help children see comfortably and efficiently, for enhanced memory, reading comprehension, confidence, and overall learning experience.

Vision therapy
Pediatric Specialist

1 in 5 children have undetected vision problems that can impair learning and development. Uncovering vision problems in growing children gives every child the best chance of reaching their full potential.

"Vision therapy provides necessary visual skills for a child to perform all tasks with ease, may it be in a classroom environment, gymnasiums or concert halls. When a child performs well in his/her area of interest, confidence is achieved, creating a positive impact on the child’s emotion and wellbeing, and prepares him/her for future success."

Dr. Nataporn Chaiprukmalakan (Nat), BOptom

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Frequently Asked Questions (FAQ)

How does vision therapy work?

Most activities, especially reading, catching a ball, and focusing on tasks, rely on the brain and the eyes working together effectively as a team.

What vision therapy does is improve the eye/brain connection and communication through supervised exercises. Although anyone can benefit from vision therapy, studies show that it is most effective in treating childhood binocular vision dysfunctions (like convergence insufficiency).

What is convergence insufficiency?

Convergence insufficiency is a common but often overlooked condition in which the eyes have trouble working together when looking at nearby objects, causing difficulty reading and focusing, among other symptoms. The condition is frequently mistaken for learning disorders or ADD/ADHD.

Does my child need vision therapy?

Pediatric ophthalmologists from Boston’s Children’s Hospital and Harvard Medical found that eye teaming, eye focusing, and eye tracking problems occur in nearly 75% of children who struggle with reading, including those who see 20/20.

Your child may need vision therapy if they appear clumsy or anxious, have difficulty reading, focusing, or completing homework, blink frequently, have light sensitivity, cover one eye to see, or experience nausea and headaches.


Children’sEye Exam Packages


For a growing child, the ability to see not only clearly, but comfortably, efficiently, and effortlessly, opens doors to countless possibilities.We are specialists in pediatric optometry.

Child Development Eye Exam

Priced at 900 THB per person
3 yearsFor preschoolers over
  • Visual acuity
  • Foveal light reflex test
  • Eye refraction
  • Stereopsis / 3D Vision test
  • Colorblindness test & analysis
  • Strabismus & motility test
  • Eye structure & eye development test
  • Binocular vision examination

Comprehensive Eye Exam

Priced at 900 THB per person
6 yearsFor school-age children over
  • Visual acuity
  • Foveal light reflex test
  • Eye refraction
  • Stereopsis / 3D Vision test
  • Colorblindness test & analysis
  • Strabismus & motility test
  • Eye structure & eye development test
  • Binocular vision examination

Behavioral Optometric Test

Priced at 2,400 THB per person
6 yearsFor school-age children over
  • Visual processing & perception
  • Visual-auditory integration & analysis
  • Reversal frequency test
  • Wold sentence copy
  • Developmental eye movement
  • Piaget right left awareness
  • Visual-motor integration & analysis

Primary eye care by Australianboard-certified optometrist

Primary eye care by Australianboard-certified optometrist

Caring for each and every family member

About Sornthai Eye Center

Sornthai Eye Center is a family practice with a specialized children’s eye center, built upon a decade of research and 3 generations of experience, setting a new standard of primary eye care in Bangkok. Our patient care is guided by the Australian Health Practitioner Regulation Agency (AHPRA).

More than just “windows to the soul”, your eyes offer doctors a uniquely clear view of nerves and blood vessels which can reveal a lot about your overall health. This is why comprehensive eye exams often show the first signs of serious conditions like diabetes, high blood pressure, high cholesterol, lupus, multiple sclerosis, and (of course) eye diseases like glaucoma and macular degeneration. Regular eye exams at Sornthai Eye Center can help spot more than 30 conditions earlier to help you and your loved ones avoid serious health complications.

For school-aged children, yearly comprehensive eye exams are necessary to detect eye diseases and vision problems, and maintain long-term healthy vision. Between ages 6 to 18, a child’s vision can change frequently and sometimes unexpectedly. Many kids with 20/20 vision have trouble reading due to (hidden) binocular vision dysfunction. Whatever the cause, poor vision left uncorrected impairs child development and hinders your child’s ability to learn, play, and grow in an educational setting.

The goal of most eye doctors is to correct your vision to 20/20 or to help you see clearly at 20 feet. That’s why we see a lot of patients come in with symptoms like headaches, dizziness, eyestrain or difficulty concentrating—while believing there’s nothing wrong with their eyes. 

At Sornthai, we provide to families the same level of eye care you would get in Australia (global 1st in healthcare outcomes), which includes holistic-comprehensive eye exam with binocular vision assessment, treatments for eye conditions, extensive behavioral eye exam, vision therapy, contact lens fitting, and contact lens aftercare.

Dr. Nataporn Chaiprukmalakan (Nat), BOptom

As the eldest child of a family that's been making spectacles for generations, Nat went on to study optometry in Australia with great enthusiasm. Her interest in neuroscience and love for children, led her to develop a passion for behavioral optometry or pediatric optometry, and she worked hard to cultivate a deeper understanding of it. One summer, she conducted a behavioral eye exam on her mother and discovered that mom has been living with undiagnosed binocular vision dysfunction (BVD) for over 50 years. Surrounded by optometrists and opticians, Nat's mother never knew that BVD was the cause of her eyes skipping lines while reading and difficulty catching or throwing balls. Nobody knew of the condition, or that it can actually be treated. It was then that Nat decided to return home. After 2 years of working with children in Australia, including those with BVD, it became clear to her that Thai children with BVD can lead happier lives free of constant, daily struggles. Living with BVD should be a thing of the past, ending in our parents' generation.

Specialty Behavioral Optometry (Children’s Vision), Clinical Optometry, Myopia Control

EducationBOptom, Optometry, University of Melbourne (2013)Vision Therapy, Australasian College of Behavioural Optometry (2014-2015)

ExperienceOptometrist, Sornthai Eye Center (2022 - Present)Chief Operating Officer, Sornthai Optometrists (2016 - Present)Clinical Instructor, Rangsit University (2019 - Present)Lecturer, Thai Optometric School (2019 - Present)Pediatric Optometrist, Buck and Todd's Optometrists, Australia (2014 - 2016)

Dr. Anchalee Khawmuang (Da), O.D.

During her internship at Sornthai, Da discovered that she enjoy caring for aging adults and decided to rejoin the team after graduation. She saw that Thailand's rapidly growing elderly population and their modernized lifestyle habits call for a patient-centric, tailored approach to eye care. So she found information and sought advice from professors, corporate researchers, and industry experts, on current treatments and products that solve eye problems of aging adults, hoping that all maintain good health and are able to live life to its fullest.

Specialty Clinical Optometry (Geriatrics), Contact Lenses, Optical Management

EducationO.D., Optometry, Rangsit University (2021)

ExperienceOptometrist, Sornthai Eye Center (2017 - Present)

ทัศนมาตร์ นามสกุล (ดา), O.D.

ณฐพร Bio ลอเร็มอิปซัมดอลอร์ซิทอาเม็ทชีสเทเลกราฟ ลอเร็มอิป ซัมอายแคร์แอพพริคอท ดอลอร์ซิทอาเม็ทชีสเทเลกราฟลอเร็มอิปซัมอายแคร์แอพพริคอท ณฐพร Bio ลอเร็มอิปซัมดอลอร์ซิทอาเม็ทชีสเทเลกราฟ ลอเร็มอิป ซัมอายแคร์แอพพริคอท

สาขาที่เชี่ยวชาญ พฤติกรรมและการมองเห็นของเด็ก, ทัศนมาตร์ศาสตร์คลินิก

การศึกษาBOptom, Optometry, University of Melbourne (2013)Vision Therapy, Australasian College of Behavioural Optometry (Year)

ประสบการณ์ทำงานOptometrist, Sornthai Eye Center (2022 - Present)Chief Operating Officer, Sornthai Optometrists (2016 - Present)Clinical Instructor, มหาวิทยาลัยรังสิต (Year)Lecturer, Thai Optometric School (Year)Pediatric Optometrist, Buck and Todd's Optometrists, Australia (2014 - 2016)

Sornthai Eye Center houses the latest, most effective ophthalmic and optometry equipment required for all components of quality primary eye care. Some of our equipment include:

1. Auto Fundus Camera2. Non-Contact Tonometer3. Corneal Topographer4. Slit Lamp5. Auto-Phoropter6. Visioffice 27. Impressionist 3