Choose the right lenses

Learn everything you need to know before you buy lenses online.   Always ask an optician or other qualified eye care professional to examine your eye and write a prescription for you. Ask whether a rigid or soft lense is the best option for someone with your lifestyle.

This article was last updated on: April 24, 2016

Laser Eye Surgery

Learn whether laser eye surgery techniques such as LASIK or PRK can be good solutions to restore your sight and eliminate your need for glasses..

This article was last updated on: April 24, 2016

Relax in style

Learn everything you need to know to buy the right sunglasses for your lifestyle.

This article was last updated on: April 24, 2016

What you should know before buying optics

Lenses

Learn more about different types of lenses and how the should be used.

This article was last updated on: April 24, 2016

Night vision

Learn more about night vision and different night vision devices.

This article was last updated on: April 24, 2016

Laser Surgery

Learn more about laser surgery. Is LASIK or PRK the right option for you.

This article was last updated on: April 24, 2016

Welcome to our website devoted to different types of optics and how they can help you see things you might not otherwise be able to see. We will talk about how different techniques such as laser surgery and different types of optics can improve your vision. We will talk about how to restore natural vision and how to get supernatural vision with the help of night vision and telescopes.

Our goal is to provide you with the information you need to be able to make an informed decision when you need to buy eyeglasses, lenses, sunglasses and other types of optics. We will not review individual products but rather show you how the products work. If you know how something work you know what to look for when you are buying a product.

Eye Glasses and Contact Lenses

Remember that eyeglasses and lenses are medical products. It is very important that you buy medical grade eyewear and lenses. If you buy low-quality alternatives you might end up hurting your eyes and reducing your sight further. Low-quality glasses can be prune to shatter with the risk of shards penetrating your eyes. Low-quality lenses can shatter but you have also the risk that the lenses might be made from materials that can hurt your eyes even if they don’t break. It is never worth risking your eyesight to save a few dollars. It usually works out to a few cents a day over the lifetime of the glasses.

You should always consult an optician or other qualified eye care professional to examine your eye if you think you need glasses. I recommend that you check your eyesight once a year. By examining your eyes regularly you can discover a problem early and prevent unnecessary damage. If you need glasses or lenses the optician or qualified eye care professional can write a prescription for you. The prescription will tell you exactly which eyeglasses or lenses you need to give your eyes the support they need. Tell the optician about your lifestyle and hobbies so that he can tell you if you should use soft or rigid lenses. You might be advised to use rigid lenses but do keep soft lenses on hand to use during certain activities during which the rigid lenses can be dangerous to use.

Once you have a prescription you can buy your glasses or lenses online. You can usually save a lot of money by ordering your glasses and lenses online. This is partly because the online shops have lower overheads and therefore can offer lower prices and partly due to the fact that you can use a price comparison site to easily find the cheapest store. This is a lot harder to do offline.

Only use vendors that sell exclusively medical grade lenses. Never gamble with your health. Never buy lenses that are not certified medical grade.  Buying low-quality lenses allow you to save money but it can cost you your sight.   You can lose a lot but win very little.

I recommend that you always order from a store within your country. If you want to order from an international vendor you should make sure that the vendor is based in a rich western European country such as Ultravision in the UK, Alcon in Switzerland and Germany or Linser.com in Sweden. The lenses you get from Africa, South America, Mexico, and Asia can sometimes be low quality regardless of the vendor’s guarantee. It is not worth taking the risk of ordering from these vendors even though many of them are honest.

Eye Laser Surgery

Laser surgery can be the best investment you do in your entire life. Many people who decide to have their eyesight corrected feel that it completely changes their life. It allows them to get a near perfect sight without ever having to worry about glasses or lenses again.

A common reason not to get laser surgery is that it is considered expensive. It is true that it cost a lot of money but it is usually the cheaper alternative in the long run. Laser surgery is a one time cost compared to glasses and lenses that are returning expenses. It is often possible to borrow the money need to get your laser surgery making it a viable option even if you do not have the savings to pay for it.

I recommend that you find out from an eye care professional if laser surgery is an option for you. Always ask for a risk assessment based on your unique situation. Laser surgery is usually a safe option but the risk will vary depending on the type and extent of eye damage you suffer from. Once you know your options you can decide what you want to do.

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Clinical Advisory: Non-Laser Refractive Surgery Alternatives

Corneal-preserving, mechanical, and bio-additive alternatives to LASIK, PRK, and SMILE

Patients disqualified from excimer/femtosecond laser procedures due to thin corneas (<500 µm), chronic dry eye disease, high keratometry values, or extreme myopia now have advanced non-laser surgical options.

EVO ICL (Phakic Intraocular Lenses)

A biocompatible collamer lens implanted in the posterior chamber behind the iris. Completely preserves corneal thickness and nerve architecture; 100% reversible and ideal for extreme myopia up to -20.0 D.

Custom Refractive Lens Exchange (RLE)

Microsurgical replacement of the crystalline lens using advanced extended depth of focus (EDOF) or trifocal IOLs. Eliminates presbyopia and permanent hyperopia while entirely preventing future cataract development.

Corneal Allogenic Ring Segments (CAIRS)

Donor stromal collagen segments mechanically positioned within mid-peripheral channels. Reshapes irregular astigmatism and keratoconus without synthetic implants or laser tissue ablation.

Surgical Candidacy Note: Intraocular procedures bypass corneal tissue removal entirely, significantly lowering risks of post-operative dry eye and ectasia. However, phakic implants and lens replacements involve intraocular entry, necessitating strict anterior chamber depth (ACD ≥ 2.8–3.0 mm) and endothelial cell count screening.
“`Non-laser refractive and ocular surgical techniques focus on preserving the cornea’s natural structural integrity or altering optical power internally without ablating corneal tissue. **Phakic Intraocular Lens Implantation (ICL / Phakic IOL)** * **How it works:** A thin, flexible artificial lens (such as the EVO/EVO+ ICL) is inserted behind the iris and in front of the natural crystalline lens through a micro-incision. * **Key advantages:** Completely reversible (the lens can be removed or swapped), does not thin the cornea, preserves corneal biomechanics, and does not induce chronic dry eye. * **Best suited for:** Moderate to extreme myopia (-3.00D to -20.00D), high astigmatism, and patients with thin or irregular corneas disqualified from laser procedures. **Refractive Lens Exchange (RLE) / Custom Lens Replacement (CLR)** * **How it works:** The eye’s clear natural crystalline lens is removed via ultrasonic phacoemulsification and replaced with an advanced intraocular lens (monofocal, toric, extended depth of focus [EDOF], or multifocal). * **Key advantages:** Corrects extreme refractive errors (both hyperopia and myopia), resolves presbyopia, and permanently eliminates the future development of cataracts. * **Best suited for:** Patients aged 45+ experiencing presbyopia, severe farsightedness (hyperopia), or early lens dysfunction. **Corneal Cross-Linking (CXL) & Non-Ablative Biomechanical Modifications** * **How it works:** Riboflavin (Vitamin B2) eye drops are combined with specific UV light wavelengths to strengthen the chemical bonds within corneal collagen fibers. * **Key developments:** Beyond halting keratoconus progression, customized topography-guided CXL protocols and electromechanical corneal reshaping are utilized to induce stable structural flattening and refractive shifts without ablating tissue. * **Best suited for:** Ectatic corneal disorders, keratoconus, or post-refractive corneal instability. **Orthokeratology (Ortho-K) & Modern Scleral Moldings** * **How it works:** Rigid, gas-permeable lenses worn overnight temporarily redistribute the epithelial fluid layer to correct refractive error during waking hours. * **Key advantages:** Entirely non-invasive, reversible, and proven to slow myopia progression in younger demographics. * **Best suited for:** Mild-to-moderate myopia, active athletes, or individuals seeking spectacle independence without undergoing surgery. | Technique | Reversible? | Corneal Tissue Altered? | Ideal Prescription Profile | | :— | :— | :— | :— | | **Phakic IOL / ICL** | Yes | No | Moderate to severe myopia, astigmatism, thin corneas | | **Refractive Lens Exchange** | No (Permanent lens replacement) | No | High hyperopia, presbyopia, ages 45+ | | **Corneal Cross-Linking** | No | Biomechanically stiffened | Keratoconus, corneal ectasia | | **Orthokeratology** | Yes | Surface epithelium only | Mild/moderate myopia, pediatric myopia control |

Beyond human sight – Telescope, Zoom and night vision

Optics can help you to see better than you naturally can even if you have perfect sites. We have used telescopes for a long time to be able to see things that are too far away to be able to see with your naked eye. Today we use advanced telescopes to be able to see galaxies far far away. Another more recent invention is night vision that makes it possible to see what happens under cover of darkness.¨

If you want to buy a telescope, a night vision device or another optical device that allows you to see what is otherwise hidden you will need to make sure that you know how you want to use it before you buy it. How you are going to use it going to have a large effect on what you should buy. An important feature for one use can be completely unnecessary for another use. No need to buy a more advanced an expensive device if you don’t need the featured offered.

This article was last updated on: September 14, 2026