The Optical Suite, Diarmuid O'Sullivan Optometrist

The Optical Suite, Diarmuid O'Sullivan Optometrist The Optical Suite is a Killarney based Opticians, giving quality eye care with the most up to date optical equipment.

The Optical Suite formally Stack O'Brien Opticians have been in Killarney since 1994. Locally owned by Optometrist Diarmuid O’Sullivan, we provide quality eye care with the most up to date optical equipment. Our team are always on hand for all your optical needs. Our mission statement is "We are a dedicated team of professionals offering an optical service to all age groups, constantly striving to improve our performance."

24/04/2026

coti_vision Style is in the details. A beautiful collection of handmade spectacle chains in every colour and texture imaginable — because practical can be pretty too.

Time to Update Your Glasses or Contact lens prescription?Our eyesight can change gradually, so it's not always easy to n...
22/04/2026

Time to Update Your Glasses or Contact lens prescription?

Our eyesight can change gradually, so it's not always easy to notice when your prescription needs an update oo

Here are a few signs to look out for:

*You find yourself squinting to read or see detail
*Your eyes feel tired after using screens
*Driving at night has become harder or blurrier
*You're getting more frequent headaches or eye strain
*Things just don't seem as clear as they used to
If any of these sound familiar, it might be time for an eye test! Regular eye exams help keep your vision sharp and your eyes healthy!

Book your appointment today, either visit our website or give us a call!

New season, new statement.  These Max Mara frames bring together bold geometry, rich green tones, and timeless elegance ...
20/04/2026

New season, new statement.
These Max Mara frames bring together bold geometry, rich green tones, and timeless elegance — the perfect blend of modern style and everyday sophistication.

17/04/2026

Tom Ford. A frame that feels effortless, refined, and ready for every day. Sometimes the simplest choices make the strongest statement.

Anti reflective lenses are clever, ultra-thin layers added to your lenses to boost clarity, comfort, and performance and...
15/04/2026

Anti reflective lenses are clever, ultra-thin layers added to your lenses to boost clarity, comfort, and performance and can be fully customisable to suit your lifestyle.

At The Optical Suite we offer a wide range of premium coatings, each carefully selected to enhance your day-to-day vision and protect your lenses.

Here are just some of the options we provide:

Blue light protection for digital use
Anti-glare coatings
Driving-specific anti-glare
UV protection
Anti-scratch layers
Anti-fog technology
Water-repellent coatings
Comfort tints & sunglass tints
Photochromic (light-adaptive) lenses
Want to upgrade your lenses or learn which coating suits you best? 🤓

Woodys Eyewear. Clear lines, soft color, and a bold modern silhouette — effortless style with a subtle edge.Perfect for ...
13/04/2026

Woodys Eyewear. Clear lines, soft color, and a bold modern silhouette — effortless style with a subtle edge.
Perfect for those who like their eyewear to feel as refined as it looks. ✨

A bold red Max Mara frame making a statement before you even put it on. Sleek, sculptural, and effortlessly chic — the k...
10/04/2026

A bold red Max Mara frame making a statement before you even put it on. Sleek, sculptural, and effortlessly chic — the kind of eyewear that turns a simple look into something memorable.

Eyewear trends make a change at this time of year as Spring colours start to appear. Call instore to see our extensive S...
08/04/2026

Eyewear trends make a change at this time of year as Spring colours start to appear. Call instore to see our extensive Spring Summer collection.

Getting ready for summer? We’ve got you covered with a fresh new range of sunglasses from all your favourite brands 😎– c...
30/03/2026

Getting ready for summer?
We’ve got you covered with a fresh new range of sunglasses from all your favourite brands 😎– call in, try them on, and find your perfect pair for the sunny days ahead.🕶️☀️🌤️

🤓

Bold, oversized, unapologetically chic.  Teal acetate Carolina Herrera frame with gold bead temples, made for turning yo...
27/03/2026

Bold, oversized, unapologetically chic.

Teal acetate Carolina Herrera frame with gold bead temples, made for turning your everyday into a runway moment. ✨👓
Perfect if you love statement eyewear that still feels light and comfortable all day.

Stress doesn’t just stay in your mind.It frequently manifests physically through your visual system.One of the most comm...
25/03/2026

Stress doesn’t just stay in your mind.
It frequently manifests physically through your visual system.

One of the most common signs is myokymia, or the annoying eyelid twitch, which occurs when high levels of cortisol trigger localized muscle spasms.

Beyond a simple twitch, chronic stress can lead to Central Serous Chorioretinopathy (CSCR), a condition where fluid builds up under the retina, causing distorted or blurry central vision.

High stress also keeps your body in a “fight or flight” state, leading to dilated pupils that cause light sensitivity and digital eye strain from a lack of blinking.

Understanding these symptoms is your body’s way of signaling that it’s time to decompress before your ocular health takes a hit.

Bold shape. Subtle details. The new Dutz Eyewear collection brings colour and confidence to every look. 💙🤎              ...
23/03/2026

Bold shape. Subtle details.
The new Dutz Eyewear collection brings colour and confidence to every look. 💙🤎

Address

58 High Street
Killarney
V93XY72

Opening Hours

Monday 9:30am - 5:30pm
Tuesday 9:30am - 5:30pm
Wednesday 9:30am - 5:30pm
Thursday 9:30am - 5:30pm
Friday 9:30am - 5:30pm
Saturday 9:30am - 5:30pm

Telephone

+353646636477

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Our Story

Since 1994 we have been offering a highly personalised eye care service. Our aim is simple, we want to provide our patients with the best possible vision through excellent clinical care and the best products available At Stack O'Brien Opticians we invest in the latest eye examination and dispensing technology. We are located in the centre of Killarney, on New Street, directly across form the Post Office. We also hold a regular clinic at Reen’s Pharmacy, Millstreet , Co. Cork.