What Is Subcapsular Cataract Surgery?

Intracapsular cataract extraction is a surgical method that removes turbid cataract components together with a transparent capsule. This operation requires a large incision, special surgical instruments, and relatively large vitreous disturbance. It takes a long time to stay in bed after the operation. Because the entire lens is removed, postoperative complications such as corneal decompensation, pupillary uplift, retinal detachment, and macular edema often occur. Especially the aphakic eye condition that is difficult to correct. Due to the above shortcomings, it has rarely been used in clinical practice.

Basic Information

Chinese name

Intracapsular cataract extraction

Indication

Senile cataract

Precautions

Choose the right freezing point

Preoperative preparation

Comprehensive evaluation of systemic diseases and lesions

Anesthesia method and preoperative preparation for intracapsular cataract extraction

Anesthesia mode

Anesthesia after routine golf or around the ball.

2. Preoperative preparation

(1) Comprehensive evaluation of systemic diseases and ocular lesions.

(2) Starting 3 days before the operation, the eyes were spotted with antibiotic eye drops, and the day of surgery was clear. Rinse the conjunctival sac and lacrimal duct with 0.25% chloramphenicol or penicillin solution.

Indications for capsular cataract extraction

1. Senile cataract that is not suitable for extracapsular cataract extraction for various reasons.

2. Part of traumatic cataract with foreign body in the lens, the anterior capsule wound has been closed, and the lens is intact.

3. Lens dislocation or subluxation, lens deformity.

4. Some types of irisitis are complicated by cataracts. It is estimated that intracapsular extraction can reduce postoperative reactions.

Intracapsular cataract extraction contraindications

1. Young people under 30 years old or infants with cataracts.

2. Extensive post-adhesion of iris caused by chronic irisitis, even those with pupillary atresia or pupillary closure.

3. High myopia often associated with vitreous liquefaction, those with a tendency to lose vitreous.

4. Contralateral eyes who have undergone intracapsular cataract extraction with vitreous prolapse, or who have undergone macular cystoid degeneration after surgery, should not undergo intracapsular extraction.

Intracapsular cataract surgery procedure

1. Routinely open the eyelid with an eyelid opener, and make a vertical laminotomy after the corneal sclera margin.

2. Make two preset sutures at 11: 00 and 1: 00 clock positions respectively, and pull out the thread sleeve from the inside of the incision, and arrange the two sides after finishing.

3. Make a full-thickness incision and expand it to the desired position with a corneal scissors.

4. Pull out the lens: there are frozen extraction method, squeeze slide method, capsule forceps method.

5. Close the incision.

Complications after intracapsular cataract extraction

Lens capsule rupture, lens dislocation, pupil block glaucoma, bullous keratopathy.

Nursing after intracapsular cataract extraction

1. Lie on your back after surgery, keeping your head stable.

2. Sterile dressing change daily after surgery, spot antibiotic eye drops, and use mydriasis to move the pupils. When necessary, antibiotics and glucocorticoids are applied systemically.

3. If the intraocular pressure increases after surgery, the intraocular pressure-lowering drugs can be applied alone or appropriate comprehensive antihypertensive measures can be taken to reduce intraocular pressure.

Diet after intracapsular cataract extraction

Give a digestible, high-protein, high-vitamin diet to ensure adequate intake of nutrients. The preparation of food should be delicious and beautiful to increase appetite. Milk, soy juice, fresh fruits, etc. can be added between meals to provide nutrition for knife edge healing. Fasting spicy and irritating foods will not aggravate the inflammatory response of the uveal membrane.