Contemporary orthokeratology.

Area of Science:

• Ophthalmology
• Optometry
• Corneal Reshaping

Background:

• Orthokeratology offers a non-surgical approach to vision correction.
• Rigid gas permeable lenses with specific designs are key to this process.

Purpose of the Study:

• To describe the essential features of tetra-curve reverse geometry back surface design rigid contact lenses used in orthokeratology.
• To list favorable and unfavorable clinical characteristics for orthokeratology.
• To highlight the role of videokeratoscopy in assessing corneal health during orthokeratology.

Main Methods:

• Description of tetra-curve reverse geometry back surface design rigid contact lenses.
• Empirical fitting or diagnostic lens fitting of reverse geometry lenses.
• Utilization of videokeratoscopy for evaluating corneal distortion.

Main Results:

• Tetra-curve reverse geometry lenses are designed for myopia and astigmatism reduction.
• Specific patient and lens characteristics influence orthokeratology success.
• Videokeratoscopy aids in identifying issues like poor lens centration and resultant corneal distortion.

Conclusions:

• Rigid lenses with reverse geometry designs are effective in orthokeratology.
• Understanding lens design and patient factors is crucial for successful outcomes.
• Videokeratoscopy is a valuable tool for monitoring corneal adaptation and ensuring optimal lens fit.