Advanced Eye Care Services

Premium Lenses & Coatings

Authorized Dealer of Alioth & Pentax

High-Quality Materials

Professional Vision Care

New Jaganpura, Patna, Bihar

Advanced Eye Care Services

Premium Lenses & Coatings

Authorized Dealer of Alioth & Pentax

High-Quality Materials

Professional Vision Care

New Jaganpura, Patna, Bihar

OASIS EYE CARE LLP

Explore The World Of Optical Lenses

Discover modern lens solutions designed for different prescriptions, viewing distances, lifestyles and eyewear requirements — from everyday single vision lenses to advanced progressive and specialized lens options.

Our Lens Range

Explore Different Types Of Optical Lenses

OASIS EYE CARE offers a broad range of optical lens solutions designed for different prescriptions, viewing requirements, lifestyles and eyewear preferences.

Single Vision Everyday prescription lenses

01 • Single Vision Lenses

Clear Vision For One Viewing Distance

Single vision lenses have the same optical power across the entire lens surface. They are the most commonly prescribed lens type and are used to correct myopia (short-sightedness), hyperopia (long-sightedness) and astigmatism. The power is chosen for distance, intermediate or near vision, depending on the wearer's prescription and needs.

Because the power is uniform, these lenses give a wide and natural field of view without any adaptation period. They suit children, teenagers and adults, and are also used as dedicated reading or computer spectacles for people with presbyopia (age-related near vision difficulty).

Single vision lenses are available in different materials such as standard plastic (CR-39), polycarbonate, Trivex and high-index, and can be combined with coatings like anti-reflective, scratch-resistant, UV protection, blue light filtering and hydrophobic coatings. The most suitable option depends on your prescription, frame style and daily activities, so a complete eye examination is always recommended.

Distance Vision
Reading Vision
Prescription Eyewear
Multiple Material Options

02 • Bifocal Lenses

Two Vision Zones In One Lens

Bifocal lenses combine two different optical powers in a single lens. The larger upper portion is used for distance vision, while a smaller segment in the lower portion provides the extra power needed for near and reading tasks. A visible dividing line separates the two zones.

Bifocals are available in different segment styles, such as flat-top (D-segment), round segment and executive (full-width) designs. Each style offers a different size and shape of reading area, and the segment height is fitted according to the wearer's eye position and reading habits.

They are commonly prescribed for presbyopia and for certain near-focusing needs. Bifocals do not have a dedicated intermediate zone for computer distance, and some wearers notice a slight image jump when the eyes move across the dividing line. People who prefer a line-free look or need clearer intermediate vision may wish to consider progressive lenses instead.

Distance & Near Vision
Two Optical Zones
Practical Design
Prescription Customization

Bifocal Lenses Distance + near vision

Progressive Lens Multiple viewing distances

03 • Progressive Lenses

Seamless Vision Across Multiple Distances

Progressive lenses provide clear vision at distance, intermediate and near ranges in one lens, with no visible line. The power changes gradually through a channel called the progression corridor, from distance power at the top, through intermediate vision in the middle, to near vision at the bottom.

They are mainly prescribed for presbyopia, which usually begins in the early to mid forties, and allow one pair of spectacles to be used for driving, computer work and reading. Modern digital (freeform) designs offer wider viewing zones and can be personalized to the wearer and the frame.

Progressive lenses need accurate measurements such as pupillary distance and fitting height, and a frame with enough vertical depth. The side areas of the lens have some unavoidable peripheral blur, so most wearers need a few days to a couple of weeks to adapt, learning to look through the correct zone by moving the head and eyes together.

Distance Vision
Intermediate Vision
Near Vision
No Visible Bifocal Line

04 • Office & Computer Lenses

Designed For Screen-Based Work

Office and computer lenses are made for people who spend long hours at a desk, working on computers, reading documents or handling tasks at near and intermediate distances. They provide wider and more comfortable viewing zones for these distances than a standard progressive lens.

For people with presbyopia, these lenses can reduce the need to tilt the head or lean forward to find the right spot in a regular progressive lens. Depending on the design, the clear range extends from close reading distance to a few metres, and the lens can be customized to the wearer's screen distance and working environment. Single vision computer lenses are also available for those who do not need a near-add power.

Office lenses are meant for indoor and desk use and are not designed for driving or walking, so a separate pair of distance spectacles is usually needed for those activities. They can be combined with anti-reflective and blue light filtering coatings for added screen comfort.

Computer Work
Intermediate Vision
Reading Activities
Workplace Use

Photochromic Adaptive light response

05 • Photochromic Lenses

Adaptive Lenses For Changing Light

Photochromic lenses contain light-sensitive molecules that react to ultraviolet (UV) light. They stay clear or lightly tinted indoors and darken automatically outdoors, then fade back to clear when the UV exposure reduces. Darkening usually happens within a minute, while fading back takes a few minutes.

The level of darkening depends on UV intensity and temperature. The lenses generally darken more in cold weather and less in very hot conditions. Since most car windshields block UV rays, the lenses may not darken fully inside a vehicle, so they are not a replacement for dedicated polarized sunglasses when driving.

These lenses also block harmful UV rays and are available in single vision, bifocal and progressive designs, with different materials and coatings. They are a convenient choice for people who move often between indoor and outdoor environments and prefer one pair of spectacles for both.

Adaptive Tint
Indoor & Outdoor Use
UV Responsive
Convenient Everyday Wear

06 • Polarized Lenses

Reduce Glare For Outdoor Activities

Polarized lenses have a special filter with a vertical orientation that blocks horizontally polarized light. This is the type of light that reflects off flat surfaces such as water, wet roads, snow, glass and car bonnets, and causes strong glare.

By cutting this glare, polarized lenses improve contrast and visual comfort and reduce squinting and eye strain in bright conditions. They are widely used for driving, travelling, boating, fishing, skiing and other outdoor activities, and are available with or without prescription.

Polarization is different from UV protection, although quality polarized lenses are normally made with full UV protection as well. Some LCD and LED screens, digital dashboards and mobile displays may look dim or show patterns through polarized lenses, and being tinted, they are not intended for night driving.

Glare Reduction
Outdoor Activities
Driving Applications
Sunglass Options

High-Index Thin profile lens options

07 • High-Index Lenses

Thinner Lens Options For Higher Prescriptions

High-index lenses are made from materials with a higher refractive index, which means they bend light more efficiently. Standard plastic has an index of about 1.50, while common high-index options include 1.60, 1.67 and 1.74. Less lens material is needed to achieve the same power, so the lenses are thinner and lighter.

They are generally recommended for stronger prescriptions, where standard lenses would be thick at the edges for myopia or thick at the centre for hyperopia. They work especially well with semi-rimless and rimless frames, and the benefit increases as the prescription gets stronger.

High-index materials reflect more light, so an anti-reflective coating is strongly recommended for better clarity and appearance. Some wearers may notice slight colour fringing at the edges of vision with very high indices, and choosing a smaller frame also helps reduce thickness. The right index is decided by your prescription and frame choice.

Thin Lens Profiles
High Prescription Options
Modern Materials
Lightweight Design Options

08 • Aspheric Lenses

Modern Lens Design With Flatter Profiles

Conventional spherical lenses have the same curve across the whole surface. Aspheric lenses have a surface curve that changes gradually from the centre to the edge. This design makes the lens flatter and slimmer and reduces the distortion that can occur toward the edges.

For long-sighted (plus) prescriptions, aspheric lenses reduce the bulge of the lens and the magnified, "bulging eyes" appearance. For short-sighted (minus) prescriptions, they help reduce edge thickness and the "shrunken eyes" effect, and they can give a clearer and wider field of view.

Aspheric designs are available in standard and high-index materials and can be combined with anti-reflective and other coatings. They work well with larger and wrap-around frames, and many modern progressive lenses also use aspheric surfaces for better visual quality.

Flatter Lens Profile
Reduced Distortion
Aesthetic Appeal
Modern Design