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Here is a quick mnemonic “MATCH LIGHT to remember about Color Vision

This can be valuable for patients as well as medical doctors, nurses & students doing their clinical rounds. You can also find it very useful for med exams like USMLE, MBBS, NEET PG, FMGE, NExT, MCAT & NCLEX exams

Color Vision : How To Remember Easily ?

  • M – Mutations of the blue cone pigment are exceedingly rare.
  • A – Affected individuals are not truly color blind; rather, they differ from normal subjects in the way they perceive color and how they combine primary monochromatic lights to match a particular color.
  • T – The red and green cone pigments are encoded on the X chromosome, and the blue cone pigment on chromosome 7.
  • C – Congenital X-linked color blindness affects 8% of males.
  • H – Hue discrimination is impaired in anomalous trichromats and dichromats.
  • L – The Ishihara plates often are used to detect acquired defects in color vision, although they are intended as a screening test for congenital color blindness.
  • I – Ishihara color plates can be used to detect red-green color blindness.
  • G – Green (530 nm) is the peak spectral sensitivity of green cones.
  • H – Hidden numbers on Ishihara plates are visible only to subjects with color confusion from red-green color blindness.
  • T – The retina contains three classes of cones, with visual pigments of differing peak spectral sensitivity: red (560 nm), green (530 nm), and blue (430 nm).

Mnemonic : MATCH LIGHT

Dr. Arin Nandi

Passionate About Medical Science & Helping Future Doctors Achieve Top Ranks In Medical Exams. He is professionally a dentist as well as a public health expert from JIPMER working in department