{"id":1360,"date":"2026-02-21T05:25:48","date_gmt":"2026-02-21T05:25:48","guid":{"rendered":"https:\/\/sakuracastle.com\/?post_type=product&#038;p=1360"},"modified":"2026-02-22T10:40:18","modified_gmt":"2026-02-22T10:40:18","slug":"japanese-brand-high-index-single-vision-lenses","status":"publish","type":"product","link":"https:\/\/sakuracastle.com\/index.php\/product\/japanese-brand-high-index-single-vision-lenses\/","title":{"rendered":"Japanese Brand High-Index Single Vision Lenses"},"content":{"rendered":"<p style=\"font-weight: 400;\"><strong>Product Details<\/strong><\/p>\n<div class=\"V5XKdd\" role=\"heading\" aria-level=\"3\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Brand: HOYA, TOKAI, NIKON, ASAHI, ITOH, etc<\/li>\n<li>Lens Technology: Single Vision<\/li>\n<li>Material: Plastic<\/li>\n<li>Country of origin: Japan<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div>\n<p data-start=\"27\" data-end=\"175\">This lens is primarily sold to customers who purchase frames from us. We will process the lenses for the corresponding frame and ship them to you.<\/p>\n<p data-start=\"182\" data-end=\"377\">While we can ship the lenses alone without a frame purchase, we do not recommend this option. Even if you have them processed by a local optician, there is a risk of fitting or processing issues.<\/p>\n<div>We use only High-Index eyeglass lenses made by Japanese manufacturers such as HOYA, SEIKO, ASAHI, ITOH, NIKON and TOKAI.<\/div>\n<div>The manufacturer may vary depending on the lens type, and we cannot accept specific manufacturer requests.<\/div>\n<div>\n<p>All eyeglass lenses sold in our store\u00a0<b>come standard with<\/b>:<\/p>\n<ul>\n<li><b>UV400 Protection:<\/b>\u00a0100% protection against harmful UV rays.<\/li>\n<li><b>Smudge-Resistant Coating:<\/b>\u00a0Reduces fingerprint marks and smudges for easier cleaning.<\/li>\n<li><b>Anti-Reflective (AR) Coating:<\/b>\u00a0Eliminates glare for better clarity and reduced eye strain.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div><\/div>\n<div>\n<p><b>Steps for Purchasing High-Index Lenses<\/b><\/p>\n<p><b>1. Select Your Lenses<\/b><\/p>\n<div>Please select the lens type you need.<br data-start=\"107\" data-end=\"110\" \/>Please refer to the description for the features and specifications of each lens option.<\/div>\n<p><b>2. Select Lens Options<\/b><\/p>\n<p>Please select whether you would like colored lenses.<\/p>\n<p><b>3. Submit Your Prescription<\/b><\/p>\n<p>Please submit your prescription to us. You may send a photo of your prescription, a handwritten note, or a message with the details entered in the required format.<br data-start=\"220\" data-end=\"223\" \/>While it is not mandatory, we recommend using a prescription you are already accustomed to.<\/p>\n<p data-start=\"785\" data-end=\"897\">If you selected colored lenses in Step 2, please include the\u00a0<strong data-start=\"846\" data-end=\"862\">color number<\/strong>\u00a0when submitting your prescription.<\/p>\n<p data-start=\"785\" data-end=\"897\">\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"V5XKdd\" role=\"heading\" aria-level=\"3\">\n<div>\n<p data-start=\"83\" data-end=\"497\"><strong>Important Notes:<\/strong><\/p>\n<p data-start=\"83\" data-end=\"497\">In cases where the astigmatism is too strong, we may not be able to produce lenses according to your desired specifications.<br data-start=\"245\" data-end=\"248\" \/><span style=\"color: #ff0000;\">If the cylinder (CYL) value on your eyeglass prescription is outside the range of<strong>\u00a0+2.00 to -3.00<\/strong>\u00a0(for example, +2.25, -3.50, -4.25, etc.), available lens options may be limited.\u00a0<strong>Please contact us before placing your order<\/strong>.<\/span><\/p>\n<p><strong>Note:<\/strong>\u00a0Depending on the prescription strength, the types of lenses we can provide may be limited, and in some cases, we may not be able to create prescription lenses for the frames we sell. If this occurs, we recommend purchasing the frames only and having the lenses made separately at an optician in your local area.<br \/>\nIn addition, we are currently unable to accept orders for glasses with prism lenses.<\/p>\n<p>If you have any questions, please feel free to contact us. Our dedicated staff will be happy to assist you.<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><a href=\"https:\/\/sakuracastle.com\/wp-content\/uploads\/2026\/02\/Glasses_Prescription_CompleteSakuraCastle.png\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff00ff;\">Click [here] to learn how to find your eyeglass prescription information.<\/span><\/a><\/h2>\n<p>&nbsp;<\/p>\n<table border=\"\" bgcolor=\"#000000\">\n<tbody>\n<tr bgcolor=\"#ee82ee\">\n<td>Single Vision Lens Option<\/td>\n<td>Price (USD\/Pair)<\/td>\n<td>Features<\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>1. Spherical Single Vision (1.56 or 1.60)<\/td>\n<td>$20.0<\/td>\n<td>Spherical lenses are a more affordable option and can be made in large quantities. However, for stronger prescriptions, they may become thicker and heavier, with shapes that look a bit too curved or too flat. Also, the choices of lens and frame combinations are more limited compared to other types.<br \/>\n<span style=\"color: #ff0000;\"><strong>This lens can be used only when the SPH (Sphere) is within the range of +2.00 D to -6.00 D and the CYL (Cylinder) does not exceed \u00b12.00 D. If the prescription exceeds this range, you must select aspheric lenses.<\/strong><\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>2. Aspheric Single Vision (1.60)<\/td>\n<td>$40.0<\/td>\n<td rowspan=\"3\">Aspheric lenses utilize a special curved surface that is neither flat nor spherical. This unique design corrects aberrations (such as blurred focus and distortion) common in spherical lenses, resulting in sharper, clearer images.<br \/>\n1.60 is the standard thickness; as the number increases, the lens becomes thinner.<br \/>\nFor eyeglass prescriptions, we recommend 1.67 for SPH powers of 4.00+\/- or higher, and 1.74 for 6.00+\/- or higher.<\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>3. Aspheric Single Vision (1.67)<\/td>\n<td>$60.0<\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>4. Aspheric Single Vision (1.74)<\/td>\n<td>$80.0<\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>5. Non-Prescription<\/td>\n<td>$15.0<\/td>\n<td>If you don&#8217;t need prescription lenses, please select this option. It uses the same lenses as the 1.60 Spherical Single Vision type.<\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>Color Tint<\/td>\n<td>+ $20.0<\/td>\n<td>Select your preferred color from image.<\/td>\n<\/tr>\n<tr bgcolor=\"#ffffff\">\n<td>Blue Light Blocking<\/td>\n<td>+ $20.0<\/td>\n<td>Blue light blocking glasses feature specially designed lenses that filter out a portion of high-energy visible (HEV) light emitted by digital screens such as smartphones, computers, and TVs. They can help reduce digital eye strain, including symptoms like dry eyes, headaches, and blurry vision, and may also improve sleep quality by minimizing blue light exposure that disrupts natural sleep cycles.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Product Details Brand: HOYA, TOKAI, NIKON, ASAHI, ITOH, etc Lens Technology: Single Vision Material: Plastic Country of origin: Japan This lens is primarily sold to&hellip;<\/p>\n","protected":false},"featured_media":1359,"comment_status":"open","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[],"product_cat":[140,124],"product_tag":[125,126,127,142,141],"class_list":{"0":"post-1360","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-high-index-prescription-lenses","7":"product_cat-outlet-japanese-eyeglasses","8":"product_tag-eyeglasses","9":"product_tag-eyewear","10":"product_tag-glasses","11":"product_tag-prescription-lenses","12":"product_tag-single-vision-lens","14":"first","15":"instock","16":"sold-individually","17":"shipping-taxable","18":"purchasable","19":"product-type-variable","20":"customify-col","21":"product-has-gallery"},"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/product\/1360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/comments?post=1360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/media\/1359"}],"wp:attachment":[{"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/media?parent=1360"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=1360"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=1360"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sakuracastle.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=1360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}