Eye Power and Eye Pressure Measurement

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Here is a patient-friendly and professional overview of the Eye Power and Eye Pressure Measurement Treatment Procedure by Dr. Farhana Ferdaus Labonnyo, suitable for clinic materials, websites, or educational use:


Eye Power & Eye Pressure Measurement by Dr. Farhana Ferdaus Labonnyo

MBBS, MS (Ophthalmology), Fellow in Vitreo-Retina
Consultant – Retina Glaucoma Center & Superspecialty Eye Hospital
National Institute of Ophthalmology, Dhaka


👁️ Why Are Eye Power & Eye Pressure Measurements Important?

Routine eye examinations often include:

  • Eye Power (Refraction Test): Determines whether you need glasses or a change in your current prescription.

  • Eye Pressure (Intraocular Pressure – IOP) Test: Essential for early detection of Glaucoma, a serious eye condition that can lead to permanent vision loss if untreated.


🧪 1. Eye Power Measurement (Refraction Test)

This test is done to detect refractive errors like:

  • Myopia (nearsightedness)

  • Hyperopia (farsightedness)

  • Astigmatism

  • Presbyopia (age-related reading difficulty)

🔬 Procedure:

  1. Auto-Refractometer Scan – A machine quickly measures your eye’s focusing ability.

  2. Manual Refraction (Retinoscopy & Trial Lens Test) – Fine-tuning using a phoropter or trial frame.

  3. Prescription Finalization – Based on patient’s clarity and comfort.

🕒 Time Required:

~10–15 minutes


🩺 2. Eye Pressure Measurement (Tonometry)

This test checks for intraocular pressure (IOP) — vital for diagnosing and monitoring glaucoma and other optic nerve disorders.

🔍 Types of Tonometry Used:

  • Non-Contact Tonometry (Air Puff Test): Quick, no-touch method to screen pressure.

  • Applanation Tonometry (Gold Standard): Accurate measurement using a special blue light and fluorescein dye (used in confirmed or suspected glaucoma cases).

🕒 Time Required:

~5–10 minutes


👩‍⚕️ Why Choose Dr. Farhana Labonnyo?

  • Expertise in glaucoma screening, diagnosis, and treatment

  • Uses modern equipment for precision testing

  • Individualized attention to vision needs and long-term eye health

  • Offers complete ophthalmic evaluation including retina, cataract, and glaucoma care


📋 When Should You Get These Tests Done?

  • Blurry vision or frequent changes in glasses power

  • Headaches or eye strain

  • Family history of glaucoma or high eye pressure

  • Over age 40 (especially important for glaucoma screening)

  • Diabetic or hypertensive patients (at risk for eye complications)


📞 To Schedule a Vision Check or Glaucoma Screening
Phone: 01819951297
Email: [email protected]

Dr.Farhana Ferdaus Labonnyo

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