Name of the Procedure:

Contact Lens, Gas Permeable, Spherical, per Lens (HCPCS V2510)

Summary

Gas permeable contact lenses are a type of rigid lens that allows oxygen to pass through to the cornea. They are custom-fit to the patient’s eye curvature to provide clear vision and are often more durable than soft lenses.

Purpose

Gas permeable contact lenses are designed to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. They can also help with presbyopia. The goal is to provide sharp and stable vision with lenses that are healthier for long-term wear compared to some soft lens options.

Indications

• Blurred vision that is not adequately corrected with glasses.
• Patients who need lenses that provide sharper vision and durability.
• People with specific corneal issues such as keratoconus.
• Individuals with a high prescription that may need a more stable lens.

Preparation

• Patients should undergo a comprehensive eye exam, including corneal measurements.
• It may be required to temporarily discontinue use of other contact lenses before fitting.
• Ensure hands are clean before handling lenses.

Procedure Description

1. Initial Examination: An eye care professional measures the patient's cornea using a keratometer or corneal topographer.
2. Lens Fitting: Based on measurements, the professional orders custom-fit gas permeable lenses.
3. Trial and Adjustment: The patient tries on the lenses, and adjustments are made as needed for comfort and optimal vision.
4. Education Session: The patient is educated on lens insertion, removal, and care practices.

Tools and Equipment: keratometer, corneal topographer, trial contact lenses.

Duration

The fitting process typically takes about 30-60 minutes per session. Multiple visits may be required for adjustments.

Setting

This procedure is performed in an optometry or ophthalmology clinic.

Personnel

• Optometrist or ophthalmologist
• Ophthalmic assistant or technician

Risks and Complications

• Initial discomfort or irritation
• Risk of eye infection if lenses are not properly cleaned
• Potential for scratching the cornea during insertion/removal
• Rarely, allergic reactions to lens material

Benefits

• Superior vision correction, often better than spectacles or soft lenses
• Durable and long-lasting lenses
• Decreased risk of certain eye problems due to higher oxygen transmission
• Lower cost over time due to durability

Recovery

• Adaptation period: Patients may take a few days to weeks to fully adjust.
• Ongoing care: Follow recommended cleaning and storage routine.
• Follow-up: Schedule regular follow-up appointments to monitor eye health and lens fit.

Alternatives

• Soft contact lenses: more comfortable initially but possibly less durable.
• Spectacles: no contact with the eye but may not provide the same quality of vision.
• LASIK surgery: permanent correction, but with its own set of risks.

Patient Experience

Patients may initially feel a foreign body sensation. Proper cleaning and handling techniques are crucial to avoid discomfort and infection. With successful fitting, patients typically experience sharp, stable vision and improved eye health.