Name of the Procedure:

Fitting of Spectacle Prosthesis for Aphakia; Monofocal

Summary

This procedure involves fitting eyeglasses with a specialized lens to correct vision in individuals who have had their natural lens removed due to conditions like cataracts, which is termed aphakia. The lenses used are monofocal, meaning they are designed to correct vision at a single focal distance.

Purpose

Aphakia, or the absence of the lens in the eye, often results in significantly impaired vision. The goal of this procedure is to restore functional vision with the help of a monofocal spectacle prosthesis, enabling the patient to see clearly at a specified distance.

Indications

• Aphakia following cataract surgery
• Congenital aphakia
• Trauma resulting in loss of the natural lens Patients suitable for this procedure are those with aphakia who are unable to use contact lenses or intraocular lenses due to various reasons, including medical conditions or personal preference.

Preparation

• Complete an eye examination to assess vision needs and current eye health.
• Follow any specific guidelines provided by the ophthalmologist, such as refraining from wearing contact lenses for a certain period before the exam.

Procedure Description

1. Initial Consultation and Eye Exam: The ophthalmologist will measure visual acuity and examine the eye structure.
2. Lens Prescription: Based on the eye exam, a prescription for the monofocal lenses will be formulated.
3. Fitting the Glasses: Custom eyeglasses with the prescribed monofocal lenses are prepared. The patient will then try the glasses to ensure proper fit and comfort.
4. Adjustments: Adjustments may be made to the frame or lens positioning for optimum vision and comfort.

Duration

The fitting process usually takes about 30 minutes to an hour, but the preparation of custom glasses can take several days.

Setting

• Outpatient clinic or an optometrist's office.

Personnel

• Ophthalmologist or Optometrist
• Optician

Risks and Complications

• Discomfort or headaches due to improper lens fitting
• Initial adjustment period with visual disturbances
• Rarely, issues like eye strain or distortion.

Benefits

• Significant improvement in vision at the specific focal distance of the monofocal lenses.
• Non-invasive and relatively quick fitting process.

Recovery

• Mild adjustment period where the patient adapts to the new glasses.
• Follow-up appointments might be needed for additional adjustments.
• Routine care and maintenance of eyeglasses.

Alternatives

• Contact lenses designed for aphakia.
• Intraocular lens implants, often used during cataract surgery.
• Pros: Contact lenses offer a wider field of vision, while intraocular lenses are a more permanent solution.
• Cons: Contact lenses require more maintenance, and intraocular lens implants involve surgical risks.

Patient Experience

• Initially, the patient may experience mild discomfort or adjustment period.
• Generally, no pain is involved, and comfort measures include proper fitting and lightweight materials for the frames.
• Most patients accommodate to the new glasses within a few days.