Vision Care

Comprehensive Family Eyecare Services for The Capital District

Buenau’s Opticians, Inc. in Delmar, New York, will elevate your eye care. We offer complete eye care services for people of all ages, beginning at age four and beyond. The cornerstone of preserving strong vision is scheduling regular annual checkups. Our devoted team is committed to maintaining the best visual health for you and your family as you move through life. Join us now to experience the benefits of proactive vision care.


We have provided unwavering expertise in eye care for more than 108 years, making us a dependable leader in eye care. Our history of dedication and expertise demonstrates our commitment to your family’s visual health. By choosing us, you embrace a narrative of thoughtfulness, accuracy, and a passion for changing lives via crystal-clear sight. Experience the peace of mind that comes with knowing a reputable institution is meeting your eye care requirements.

Join Buenau’s Opticians, Inc. on a journey to long-lasting optical clarity. Make an appointment for your yearly eye checkup right away and invest in a lifetime of healthy, vibrant vision. Our top goal is the healthy eyes of your family.

Optomap®

Optomap® Retinal Exam Detects Disease Earlier! The Optomap Retinal Exam is a non-dilating camera that captures a digital retina image. The Optomap allows the doctor to capture a 200° high-resolution image of the retina in a single shot—without dilation—in a quarter of a second.

Laser Correction

Laser Vision Correction (LASIK or PRK) is the most technologically advanced method for correcting nearsightedness (myopia), astigmatism, and farsightedness (hyperopia). Using an excimer laser, the precise, effective procedure can help reduce or even eliminate your dependence on glasses and contact lenses. Over the past decade, over one million laser vision correction procedures have been performed in 52 countries.

Human Eye

Understanding the Human Eye

The human eye is a delicate and complex organ that converts light waves into impulses that are then interpreted by our brains as images. It is considered by many in the scientific and medical communities to be the most complex organ in our bodies. Below is an overview of the components of the human eye and how the process of sight works.

Parts Of The Human Eye | Delmar, NY | Buenau’s Opticians, Inc.

Parts of The Eye

  • Cornea: Located at the front of the eye, the cornea is a transparent layer of tissue that focuses light into the pupil.
  • Iris: The colored part of the eye that controls the expansion and contraction of the pupil depending on the amount and intensity of the light that enters the eye.
  • Pupil: Located in the center of the iris, the pupil controls how much light enters the eye’s internal structure. In humans, the pupil is round and appears black because the inner eye absorbs the light that enters the pupil.
  • Lens: Located directly behind the pupil, the lens (along with the cornea) helps to focus light onto the retina
  • Retina: A light-sensitive layer of tissue, the retina is a membrane at the back of the eye that converts light into electrical impulses.
  • Photoreceptors: (sometimes called rods and cones) are specialized cells used by the retina to process and convert light
  • Optic Nerve: Located behind the eye, the optic nerve is a bundle of nerve fibers that transmits the impulses generated by the retina to the brain’s vision centers.
  • Macula: Part of the retina, the macula, is responsible for central vision. Its highly specialized structure is responsible for visual acuity.
  • Sclera: The white part of the eye, the sclera, is made of fibrous tissue designed to protect the eye’s inner workings.
  • Choroid: Located between the retina and the sclera, the choroid is the vascular layer of the eye.

How It All Works

The ability to see is a complex and delicate process that requires the various parts of the eye as well as the vision centers of the brain, to work in concert. The process begins as light waves enter the eye through the cornea. As the primary focusing element of the eye, the cornea bends and focuses the light so it can pass through the pupil and enter the inner structures of the eye.


The pupil is controlled by the ring of muscles known as the iris, which contracts and expands to limit the amount/intensity of light that enters the inner eye. In bright conditions, the pupil will contract; in low-light conditions, the pupil will expand.


Once through the pupil, the light passes through the eye’s secondary focus structure, the lens. Unlike the cornea, which is fixed, the lens can change shape, which allows the light to be fine-tuned to a sharp focus before it passes onto the retina.

The retina works much like the film in a camera. It’s an intricate layer of light-sensitive tissue that lines the inner surface of the eye, made up of photoreceptor cells (sometimes called rods and cones). As light hits the retina, it initiates a surge of chemical and electrical events that ultimately trigger nerve impulses. These impulses then travel through the optic nerve, located behind the eye, into the brain’s vision centers, which finally get interpreted into the images we see every day.


As you can see, it is a highly delicate system with several working parts. A slight defect, like the curvature of the lens, the shape of the cornea, or damage to the retina, can sometimes cause significant vision problems. That is why taking care of your eyes is critically essential. Buenau’s Opticians, Inc. recommends all patients receive an annual eye exam. Early detection and prevention of several common eye disorders can significantly reduce eye damage and prevent vision loss.

Insurance We Accept:

  • EyeMed
  • C.D.P.H.P.
  • M.V.P.
  • Medicare
  • Blueview
  • NYSUT
  • TRICARE
  • Davis
  • Aetna
  • Blueshield
  • CSEA
  • Bluecross Blueshield
  • Spectera
  • Superior
  • Avesis—Covers Exams Only
  • VBA
  • ...and many more. Call for details.
  • EyeMed
  • C.D.P.H.P.
  • M.V.P.
  • Medicare
  • Blueview
  • NYSUT
  • TRICARE
  • Davis
  • Aetna
  • Blueshield
  • CSEA
  • Bluecross Blueshield
  • Spectera
  • Superior
  • Avesis—Covers Exams Only
  • VBA
  • ...and many more. Call for details.

Schedule Your Eye Exam Today!

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