Experimental vitrectomy. A lens-sparing technique in the rabbit eye.

Area of Science:

• Ophthalmology
• Surgical Techniques
• Retinal Surgery

Background:

• Vitrectomy is crucial for treating various posterior segment diseases.
• Traditional vitrectomy combined with lensectomy can lead to complications like inflammation and obscured fundus view.
• Minimally invasive techniques are needed to improve surgical outcomes and postoperative management.

Purpose of the Study:

• To present a novel experimental vitrectomy technique in rabbit eyes.
• To evaluate the technique's ability to minimize intraocular inflammation and preserve the lens.
• To assess the visibility of the fundus and the incidence of late complications such as traction retinal detachment.

Main Methods:

• A modified experimental vitrectomy technique was performed on rabbit eyes, ensuring the lens remained intact.
• Postoperative intraocular inflammatory response was monitored.
• Fundus visibility was assessed from the first postoperative day.
• A method for gross identification and estimation of residual vitreous gel was developed.

Main Results:

• The described vitrectomy technique successfully preserved the lens and minimized postoperative intraocular inflammation.
• The fundus remained visible for follow-up starting on the first postoperative day.
• No traction retinal detachment was observed as a late complication.
• A simple method for assessing residual vitreous gel was established.

Conclusions:

• This lens-sparing vitrectomy technique offers a viable experimental model in rabbits.
• The technique facilitates early postoperative fundus examination and reduces the risk of traction retinal detachment.
• It provides a valuable approach for studying posterior segment diseases with improved visual assessment and reduced complications.