Name of the Procedure:

Prescription of Optical and Physical Characteristics of Contact Lens with Medical Supervision of Adaptation and Direction of Fitting by an Independent Technician; Corneal Lens for Aphakia, Both Eyes

Summary

This procedure involves prescribing contact lenses specifically for individuals who have lost their natural lens (aphakia) in both eyes. A healthcare professional supervises the fitting and adaptation process, while a trained technician fits the corneal lenses.

Purpose

Medical Condition Addressed:

• Aphakia (the absence of the natural crystalline lens of the eye)

Goals:

• To restore clear and comfortable vision for individuals without natural lenses.
• To improve quality of life by providing an effective alternative to eyeglasses or intraocular lens implants.

Indications

• Patients diagnosed with aphakia in both eyes.
• Individuals seeking an alternative to eyeglasses or those who are not candidates for intraocular lens implants.

Preparation

• Comprehensive eye examination to assess eye health and determine the correct lens specifications.
• Measurements of the corneal curvature and eye dimensions.
• Patients should refrain from wearing any other contact lenses for at least 24 hours before the fitting appointment.

Procedure Description

1. Initial Consultation and Examination: The ophthalmologist evaluates the patient's eyes and reviews their medical history.
2. Lens Prescription: The doctor prescribes the optical power and physical characteristics of the contact lenses based on the examination.
3. Fitting Process:
   • An independent technician receives the lens prescription.
   • The technician fits the trial lenses onto the patient's eyes.
   • The ophthalmologist supervises and ensures the lenses fit well and the patient’s vision is improved.
4. Adaptation Supervision: The patient wears the trial lenses under medical supervision to confirm comfort and vision are adequately restored.
5. Final Adjustments: Any necessary modifications to the lens prescription or fitting are made.

Tools and Equipment:

• Corneal contact lenses
• Diagnostic tools for measuring eye curvature and dimensions

Duration

The procedure typically takes about 1 to 2 hours, including the examination, fitting, and adaptation supervision.

Setting

The procedure is performed in an ophthalmologist's office or an outpatient eye clinic.

Personnel

• Ophthalmologist
• Independent contact lens technician

Risks and Complications

• Irritation or discomfort in the eyes
• Potential infection if lenses are not handled properly
• Rarely, corneal damage or vision issues if lenses are not fitted correctly

Benefits

• Restoration of clear, focused vision
• Improvement in daily activities and overall quality of life
• Immediate visual correction upon proper fitting

Recovery

• Patients may experience mild discomfort initially, which usually subsides as they adapt to the lenses.
• Follow-up appointments are typically scheduled to monitor comfort and vision.
• Proper lens care and hygiene are crucial to avoid complications.

Alternatives

• Eyeglasses specifically designed for aphakia
• Intraocular lens implants (IOL)
• Pros of alternatives: Eyeglasses are non-invasive; IOLs provide a permanent solution.
• Cons of alternatives: Eyeglasses may be cumbersome; IOL surgery carries surgical risks.

Patient Experience

• Patients may feel a sense of foreign body sensation initially.
• Detailed instructions will be provided for lens care and handling to ensure comfort.
• Any discomfort or issues should be reported promptly to the healthcare provider.