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The Pearl of Eye Surgery: How Ophthalmic Viscosurgical Devices Protect Your Vision?
In ophthalmic surgery, Ophthalmic Viscosurgical Devices (OVDs) have become an important tool in modern ophthalmic surgery with their unique physical properties.These devices, as transparent gel-like substances, are designed to maintain the volume and shape of the anterior cavity and effectively protect the intraocular tissue during surgery.At the beginning of the operation, OVDs are injected into the anterior chamber and are drawn at the end of the operation.OVDs are indispensable because of their multiple functions during ophthalmic surgery, which can not only improve visual results but also reduce potential complications.
Ophthalmic Viscosurgical Devices protect the corneal endothelium, prevent mechanical trauma, and maintain the volume and shape of the interior space during open incisions.
Purpose and functions of OVDs
OVDs play a crucial role in a variety of ophthalmic surgeries, including cataract surgery, corneal surgery, glaucoma surgery, eye trauma repair and vitreoretinal surgery.These devices provide surgeons with unique advantages by injecting into the surgical area.Specifically, one of the key functions of OVDs is to protect tissue in the eye during the surgery, while providing good operating space for surgical tools, making the surgical process smoother.
Possible side effects and contraindications
Although OVDs show great advantages in ophthalmic surgery, they still have some potential side effects.The most significant of these is the abnormal increase in intraocular pressure after surgery, especially if OVD is accidentally left in the eye after surgery.This increase in stress is usually automatically relieved within three days after surgery, but various types of medications can still be relied on to limit such stress fluctuations.In addition, OVD may also be trapped after the intraocular lens during normal surgery, which in turn causes the crystal to move forward, which may lead to a shift in visual focus.
The components of OVDs contain polymers such as sodium hyaluronic acid. Stabilizing these materials is the key to ensuring the success of the surgery.
Optimal Characteristics of OVDs
Ideal OVD should have many excellent characteristics: easy placement during surgery, stability under positive pressure, ability to maintain volume during ultrasonic emulsification surgery, etc.It should also provide excellent protection without hindering the use of the instrument.Among these physical properties, viscoelasticity, viscosity, pseudoplasticity, etc. are the keys to choosing suitable OVD. Through these characteristics, OVDs can effectively protect the intraocular tissue during the operation and be quickly and conveniently extracted after the operation, minimizing the impact on the patient.
Made and History
The origin of OVDs dates back to 1934, when scientists first extracted and isolated hyaluronic acid.Over time, these devices have undergone years of improvement and were officially introduced as an ophthalmic surgical tool in 1972.In the following decades, multiple alternative formulas for OVDs were continuously developed and became an indispensable magic weapon in ophthalmic surgery.
The proper use of OVDs not only improves the success rate of the surgery, but also improves the overall quality of postoperative recovery for patients.
Future Outlook
With the advancement of technology, the formulation and usage methods of OVDs will continue to be upgraded, bringing new challenges and opportunities to ophthalmic surgery.Although OVDs have shown their excellent performance in clinical practice, we still need to think about what innovations will emerge in the future on the road to ensuring eye safety and vision recovery?
