Non-contact wide angle viewing system with front lens assembly having anti-fogging, anti-reflective coating

A system comprising:

• an ophthalmic microscope;
• and
• a non-contact wide angle viewing system (WAVS) connected to the ophthalmic microscope, the WAVS including
• a front lens assembly comprising:
• an adjustable bracket;
• a front lens having an outer perimeter connected to the adjustable bracket, a first surface configured to face an eye of a patient during an ophthalmic surgery performed using the WAVS, and a second surface configured to face the ophthalmic microscope during the ophthalmic surgery;
• and
• an anti-fogging, anti-reflective (AFAR) layer that coats at least the first surface and is configured to prevent an accumulation of fog thereon during the ophthalmic surgery.

A front lens assembly for a non-contact wide angle viewing system (WAVS) connectable to an ophthalmic microscope, the front lens assembly comprising:

• a disposable plastic front lens having a circular outer perimeter, a first convex surface configured to face an eye of patient during an ophthalmic surgery performed using the WAVS, and a second convex surface configured to face the ophthalmic microscope when the front lens assembly is connected to the ophthalmic microscope;
• an adjustable bracket having a first end that is pivotably connectable to the ophthalmic microscope, and a second end forming a connection ring that is fixedly connectable to the circular outer perimeter;
• a first anti-fogging, anti-reflective (AFAR) layer and a second AFAR layer, wherein the first AFAR layer coats the first convex surface and the second AFAR layer coats the second convex surface to respectively prevent an accumulation of fog on the first surface and the second surface during the ophthalmic surgery,
• wherein the first AFAR layer and the second AFAR layer each include a mixture of a hydrophobic material and a hydrophilic material.