Duochrome test #duochrome #optometryreels #optometry

Duochrome test is a common procedure used in optometry to refine the accuracy of a refraction, especially during the final stages of determining the correct lens prescription for glasses.

👓 It helps the optometrist fine-tune the spherical power of the lenses.

💥The patient looks at a chart that displays letters or symbols with a red background on one side and a green background on the other.

💥The test is based on the fact that red and green light focus at different points due to chromatic aberration.

❇️Green light (shorter wavelength) focuses slightly in front of the retina, while red light🛑 (longer wavelength) focuses slightly behind the retina.

💥Procedure:
✅ The optometrist asks the patient whether the letters on the red background or the green background appear clearer.

✅ If the letters on the green side are clearer, the prescription might be too strong (over-corrected for nearsightedness or under-corrected for farsightedness).

✅ If the letters on the red side are clearer, the prescription might be too weak (under-corrected for nearsightedness or over-corrected for farsightedness).

✅ The goal is to achieve a balance where the letters on both sides appear equally clear, indicating that the light is focusing correctly on the retina.

#duochrome #eyetest #refraction #optometry #optometryreels #eyecare #optometryschool #optometrist #subscribe #trending #reels #learning #like #follow #share #optometrists

Видео Duochrome test #duochrome #optometryreels #optometry канала Optometryreels