Name of the Procedure:

• Common Name: Contact Lens Fitting
• Medical Term: Contact Lens, PMMA, Spherical, per lens (HCPCS V2500)

Summary

This procedure involves fitting a patient with a spherical contact lens made from polymethylmethacrylate (PMMA). These lenses are hard and are designed to correct specific vision problems by altering the way light enters the eye.

Purpose

The primary aim is to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. The goal is to provide clearer vision and improve overall visual acuity.

Indications

• Symptoms of blurry vision, both near or distant.
• Diagnosed with refractive errors needing correction.
• Patients unable or unwilling to wear glasses.
• Individuals participating in activities where glasses are impractical.

Preparation

• Ensure the eyes are healthy with a comprehensive eye exam.
• Discontinue wearing contact lenses as advised by the optometrist (typically 24-48 hours prior to the appointment).
• No specific dietary or medication adjustments generally required.

Procedure Description

1. Initial Eye Exam: An optometrist or ophthalmologist will conduct a detailed eye examination.
2. Measurement: Pupillary distance and corneal curvature are measured.
3. Lens Fitting: A trial lens is placed in the eye to check fit and comfort.
4. Adjustment: The lens prescription is adjusted based on feedback and vision tests.
5. Final Prescription: Once an optimal fit is achieved, the final lens prescription is confirmed.

Tools and Equipment:

• Phoropter
• Keratometer
• Trial contact lenses

Anesthesia:

• Not applicable as the procedure is non-invasive.

Duration

The fitting procedure typically takes about 30 to 60 minutes.

Setting

• Outpatient office or clinic of an optometrist or ophthalmologist.

Personnel

• Optometrist or ophthalmologist
• Optometric technician (in some cases)

Risks and Complications

• Initial discomfort or irritation in the eyes.
• Risk of infections if lenses are not cleaned properly.
• Possibility of allergic reactions to lens cleaning solutions.
• Rarely, corneal abrasions or ulcers.

Benefits

• Improved vision clarity and acuity.
• Easier participation in activities compared to wearing glasses.
• Convenient and aesthetic advantages.

Recovery

• Immediate improvement in vision upon successful fitting.
• Some initial adaptation period where the eyes get used to the lenses.
• Follow-up visits may be needed to fine-tune the fit.

Alternatives

• Eyeglasses: Less invasive, no risk of eye infections, but can be cumbersome for some activities.
• Soft Contact Lenses: More comfortable but might not be suitable for all prescriptions.
• Refractive Surgery (LASIK): Permanent solution but involves higher risk and cost.

Pros and Cons:

• Glasses are easier to maintain but can break or get dirty.
• Soft lenses are comfortable but may not correct vision as precisely as PMMA lenses.
• LASIK offers long-term correction but includes surgical risks and higher costs.

Patient Experience

• During the fitting, the patient may feel brief discomfort as the trial lenses are applied.
• Post-procedure, mild discomfort or dryness which usually subsides with proper lens care and adaptation.
• Pain management typically involves using lubricating eye drops and following care instructions for contact lenses.