Ophthalmology · Ophthalmic Imaging and Investigations (OCT, FFA, B-scan, Perimetry, Biometry, Topography)

Which IOL power calculation formula is considered MOST accurate for short axial length eyes (<22 mm)?

  • A SRK/T
  • B Hoffer Q
  • C Haigis
  • D Barrett Universal II
Correct answer: B. Hoffer Q

Explanation

The Hoffer Q formula is specifically validated and most accurate for short axial length eyes (<22 mm). SRK/T (option A) performs best in average to long eyes. While Barrett Universal II (option D) performs well across all axial lengths, Hoffer Q remains the classic formula of choice for short eyes per major reference texts.

Reference: Clinical Optics and Refraction, 2nd ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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