Indices for the detection of keratoconus

Area of Science:

• Ophthalmology and Optometry
• Corneal Disease and Surgery

Background:

• Accurate preoperative evaluation is essential for refractive surgery to mitigate risks.
• Keratoconus (KC) identification is a critical step in pre-refractive surgery assessment.
• Preventing secondary ectasia post-refractive surgery relies heavily on preoperative KC screening.

Purpose of the Study:

• To highlight the importance of preoperative keratoconus screening in refractive surgery.
• To discuss the role of corneal topography in early keratoconus diagnosis.
• To address the utility and potential complexity of mathematical indices in KC detection.

Main Methods:

• Utilizing corneal topography as a primary diagnostic tool for keratoconus.
• Employing various mathematical indices derived from corneal topography data.
• Assessing the specificity and sensitivity of these indices for early KC detection.

Main Results:

• Corneal topography provides a means for early diagnosis of keratoconus.
• Mathematical indices calculated from topography aid in determining KC with high accuracy.
• These indices offer improved specificity and sensitivity for keratoconus identification.

Conclusions:

• Preoperative screening for keratoconus is vital to reduce the risk of post-refractive surgery ectasia.
• Corneal topography and its associated mathematical indices are powerful tools for early keratoconus detection.
• Despite their utility, the complexity of these indices may pose challenges in clinical application.