top of page


What is a cataract and how is it diagnosed ?

                   Most cataracts develop as part of the aging process, or result from injury, systemic disease ( diabetes ) or corticosteroid use. Using specialized equipment, cataracts and other eye diseases are diagnosed during a complete eye examination.

What are the symptoms ?

  • Difficulty in seeing clearly to drive especially at night

  • Trouble seeing well enough to perform close work

  • Problems seeing the television or computer screen

  • Frequent changes to a stronger glasses prescription

  • Bothersome glare in bright sun and evening driving




The top lens is a clear, natural lens. The bottom lens shows clouding by cataract.


See a simulation of what vision with cataracts looks like.

How are cataracts treated ?

                        The physicians at Chenango Eye Associates perform a type of cataract surgery called ultrasonic phacoemulsification surgery. This surgery is minimally invasive and requires no stitch and only topical anesthetic (eye drops).

A small incision is made in or near the cornea and an ultrasonic probe is inserted to breakup the cloudy lens and it is then removed from the eye.


After the cloudy lens is removed, a new artificial lens is implanted in the eye. This outpatient surgery is performed under the superb magnification of the state-of-the-art Zeiss Lumera Microscope to provide your doctor with the highest quality view of your eye.

Multifocal Implant 

The multifocal implant is a permanent artificial lens that can be implanted in the eye to restore vision when the natural lens is removed after cataract surgery. A multifocal lens is like two lenses in one, one refractive for distance vision and the other one a diffractive lens, for near vision. The standard artificial lens ( monofocal ) implanted after cataract surgery corrects for distance or near, but not both as a multifocal lens does. After a multifocal implant surgery, it may be necessary for some people to wear glasses for distance, intermediate, or near vision to obtain optimal visual acuity. The difference is that most people with the multifocal lens will not be dependent on glasses to live normally.

Additional information on Panoptix, Vivity, and ReStor and presbyopic-correcting IOL's can be found online at:,

The Zeiss IOL Master

At Chenango Eye Associates we use the Zeiss IOL Master, a high precision instrument revolutionizing all previous techniques and setting a new standard for the measurements of the eye. 

This instrument gives the most accurate eye measurements possible to ensure success with cataract surgery. The Zeiss IOL Master instrument provides our physicians with key measurements that make it possible for them to choose the correct intraocular lens for each individual.

bottom of page