![]() Clinical pearls:Placements of sclerotomy with drainage of blood in suprachoroidal hemorrhage:.Thickest (around the optic nerve head):.Clinical pearls:Important with blunt trauma and scleral laceration.Thinnest location: immediately posterior to the insertion of the recti muscles.Margin of excision with squamous cell carcinoma (SCC) conjunctiva or cornea:.Clinical pearls: Risk for corneal decompensation after intraocular operation:.Clinical pearls: Contraindication RSB LASIK depth: (RSB = CCT – Flap thickness – Ablation depth).To ablate corneal pathology limited to ⅓ anterior of the cornea ( about 180 μm).Clinical pearls: Phototherapeutic keratectomy (PTK) depth:.Clinical pearls: Radial keratotomy depth:.99% depth (avoid: arcuate incisions > 90° due to decreased efficacy and increased instability).Clinical pearls: Arcuate or straight incisions (AK) depth:.Clinical pearls: Limbal/corneal relaxing incisions (LRI/CRI) depth using preset diamond knife:.Clinical pearls: Risk for decompensation after intraocular surgery:.Epithelium thickness (important with crosslinking to subtract it from the thinnest point).700 μm - 1.0 mm ( The "l" in the "limbus." looks like a 1).Normal central corneal thickness (CCT):.A normal cornea is prolate, with an asphericity Q value of –0.26. ![]() 60.00 D has a lower likelihood of functional improvement of vision a corneal transplant may be unavoidable.Clinical pearls: Buphthalmos (“bull’s-eye”).The continuous contributions of all members are mandatory to keep the page up to date. The numbers are retrieved mainly from the latest version of The American Academy of Ophthalmology's Basic and Clinical Science Course™ book series. The current page is aimed to gather all actual reference values and their clinical significance in various conditions in ophthalmology. Therefore, gathering all the reference values in the ophthalmology field is highly appreciated by clinicians. Despite the widespread use and continuous improvements of search engines, finding the normal range of values or their clinical significance is still difficult and time-consuming. normal corneal power, minimal acceptable residual stromal bed, minimum length of temporal artery biopsy, appropriate follow-up time for various diseases, anatomical reference values, etc). Sometimes the only thing an ophthalmologist is looking for is just a number (e.g. Various biometric evaluations are done in clinics on a daily basis which are reported in numbers. Numbers have become increasingly important in routine clinical practice for example when we will diagnose diseases with choice of the kind or dose or duration of treatments to localize incisions during surgery to choose the size or power of implants or to schedule follow-up visits, etc. 6.1 Time to add, or to do, onset/duration:.5 Visual acuity and visual acuity testing:.4.1 Instrument’s sensitivities, power, etc:.2.20.1 Short posterior ciliary arteries:.2.14 Ora serrata (the boundary between the pars plana and the retina):.2.12 Ciliary processes of the ciliary body:.To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice. You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice.
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